diff --git a/print-icmp6.c b/print-icmp6.c
new file mode 100644
index 0000000..c503924
--- /dev/null
+++ b/print-icmp6.c
@@ -0,0 +1,1287 @@
+/*
+ * Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that: (1) source code distributions
+ * retain the above copyright notice and this paragraph in its entirety, (2)
+ * distributions including binary code include the above copyright notice and
+ * this paragraph in its entirety in the documentation or other materials
+ * provided with the distribution, and (3) all advertising materials mentioning
+ * features or use of this software display the following acknowledgement:
+ * ``This product includes software developed by the University of California,
+ * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
+ * the University nor the names of its contributors may be used to endorse
+ * or promote products derived from this software without specific prior
+ * written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef lint
+static const char rcsid[] _U_ =
+    "@(#) $Header: /tcpdump/master/tcpdump/print-icmp6.c,v 1.79.2.6 2005/09/05 09:29:28 guy Exp $";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#ifdef INET6
+
+#include <tcpdump-stdinc.h>
+
+#include <stdio.h>
+#include <string.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "extract.h"
+
+#include "ip6.h"
+#include "icmp6.h"
+#include "ipproto.h"
+
+#include "udp.h"
+#include "ah.h"
+
+static const char *get_rtpref(u_int);
+static const char *get_lifetime(u_int32_t);
+static void print_lladdr(const u_char *, size_t);
+static void icmp6_opt_print(const u_char *, int);
+static void mld6_print(const u_char *);
+static void mldv2_report_print(const u_char *, u_int);
+static void mldv2_query_print(const u_char *, u_int);
+static struct udphdr *get_upperlayer(u_char *, u_int *);
+static void dnsname_print(const u_char *, const u_char *);
+static void icmp6_nodeinfo_print(u_int, const u_char *, const u_char *);
+static void icmp6_rrenum_print(const u_char *, const u_char *);
+
+#ifndef abs
+#define abs(a)	((0 < (a)) ? (a) : -(a))
+#endif
+
+static struct tok icmp6_type_values[] = {
+    { ICMP6_DST_UNREACH, "destination unreachable"},
+    { ICMP6_PACKET_TOO_BIG, "packet too big"},
+    { ICMP6_TIME_EXCEEDED, "time exceeded in-transit"},
+    { ICMP6_PARAM_PROB, "parameter problem"},
+    { ICMP6_ECHO_REQUEST, "echo request"},
+    { ICMP6_ECHO_REPLY, "echo reply"},
+    { MLD6_LISTENER_QUERY, "multicast listener query"},
+    { MLD6_LISTENER_REPORT, "multicast listener report"},
+    { MLD6_LISTENER_DONE, "multicast listener done"},
+    { ND_ROUTER_SOLICIT, "router solicitation"},
+    { ND_ROUTER_ADVERT, "router advertisement"},
+    { ND_NEIGHBOR_SOLICIT, "neighbor solicitation"},
+    { ND_NEIGHBOR_ADVERT, "neighbor advertisement"},
+    { ND_REDIRECT, "redirect"},
+    { ICMP6_ROUTER_RENUMBERING, "router renumbering"},
+    { IND_SOLICIT, "inverse neighbor solicitation"},
+    { IND_ADVERT, "inverse neighbor advertisement"},
+    { MLDV2_LISTENER_REPORT, "multicast listener report v2"},
+    { ICMP6_HADISCOV_REQUEST, "ha discovery request"},
+    { ICMP6_HADISCOV_REPLY, "ha discovery reply"},
+    { ICMP6_MOBILEPREFIX_SOLICIT, "mobile router solicitation"},
+    { ICMP6_MOBILEPREFIX_ADVERT, "mobile router advertisement"},
+    { ICMP6_WRUREQUEST, "who-are-you request"},
+    { ICMP6_WRUREPLY, "who-are-you reply"},
+    { ICMP6_NI_QUERY, "node information query"},
+    { ICMP6_NI_REPLY, "node information reply"},
+    { MLD6_MTRACE, "mtrace message"},
+    { MLD6_MTRACE_RESP, "mtrace response"},
+    { 0,	NULL }
+};
+
+static struct tok icmp6_dst_unreach_code_values[] = {
+    { ICMP6_DST_UNREACH_NOROUTE, "unreachable route" },
+    { ICMP6_DST_UNREACH_ADMIN, " unreachable prohibited"},
+    { ICMP6_DST_UNREACH_BEYONDSCOPE, "beyond scope"},
+    { ICMP6_DST_UNREACH_ADDR, "unreachable address"},
+    { ICMP6_DST_UNREACH_NOPORT, "unreachable port"},
+    { 0,	NULL }
+};
+
+static struct tok icmp6_opt_pi_flag_values[] = {
+    { ND_OPT_PI_FLAG_ONLINK, "onlink" },
+    { ND_OPT_PI_FLAG_AUTO, "auto" },
+    { ND_OPT_PI_FLAG_ROUTER, "router" },
+    { 0,	NULL }
+};
+
+static struct tok icmp6_opt_ra_flag_values[] = {
+    { ND_RA_FLAG_MANAGED, "managed" },
+    { ND_RA_FLAG_OTHER, "other stateful"},
+    { ND_RA_FLAG_HOME_AGENT, "home agent"},
+    { 0,	NULL }
+};
+
+static struct tok icmp6_nd_na_flag_values[] = {
+    { ND_NA_FLAG_ROUTER, "router" },
+    { ND_NA_FLAG_SOLICITED, "solicited" },
+    { ND_NA_FLAG_OVERRIDE, "override" },
+    { 0,	NULL }
+};
+
+
+static struct tok icmp6_opt_values[] = {
+   { ND_OPT_SOURCE_LINKADDR, "source link-address"},
+   { ND_OPT_TARGET_LINKADDR, "destination link-address"},
+   { ND_OPT_PREFIX_INFORMATION, "prefix info"},
+   { ND_OPT_REDIRECTED_HEADER, "redirected header"},
+   { ND_OPT_MTU, "mtu"},
+   { ND_OPT_ADVINTERVAL, "advertisement interval"},
+   { ND_OPT_HOMEAGENT_INFO, "homeagent information"},
+   { ND_OPT_ROUTE_INFO, "route info"},
+   { 0,	NULL }
+};
+
+/* mldv2 report types */
+static struct tok mldv2report2str[] = {
+	{ 1,	"is_in" },
+	{ 2,	"is_ex" },
+	{ 3,	"to_in" },
+	{ 4,	"to_ex" },
+	{ 5,	"allow" },
+	{ 6,	"block" },
+	{ 0,	NULL }
+};
+
+static const char *
+get_rtpref(u_int v)
+{
+	static const char *rtpref_str[] = {
+		"medium",		/* 00 */
+		"high",			/* 01 */
+		"rsv",			/* 10 */
+		"low"			/* 11 */
+	};
+
+	return rtpref_str[((v & ND_RA_FLAG_RTPREF_MASK) >> 3) & 0xff];
+}
+
+static const char *
+get_lifetime(u_int32_t v)
+{
+	static char buf[20];
+
+	if (v == (u_int32_t)~0UL)
+		return "infinity";
+	else {
+		snprintf(buf, sizeof(buf), "%u", v);
+		return buf;
+	}
+}
+
+static void
+print_lladdr(const u_int8_t *p, size_t l)
+{
+	const u_int8_t *ep, *q;
+
+	q = p;
+	ep = p + l;
+	while (l > 0 && q < ep) {
+		if (q > p)
+			printf(":");
+		printf("%02x", *q++);
+		l--;
+	}
+}
+
+static int icmp6_cksum(const struct ip6_hdr *ip6, const struct icmp6_hdr *icp,
+	u_int len)
+{
+	size_t i;
+	register const u_int16_t *sp;
+	u_int32_t sum;
+	union {
+		struct {
+			struct in6_addr ph_src;
+			struct in6_addr ph_dst;
+			u_int32_t	ph_len;
+			u_int8_t	ph_zero[3];
+			u_int8_t	ph_nxt;
+		} ph;
+		u_int16_t pa[20];
+	} phu;
+
+	/* pseudo-header */
+	memset(&phu, 0, sizeof(phu));
+	phu.ph.ph_src = ip6->ip6_src;
+	phu.ph.ph_dst = ip6->ip6_dst;
+	phu.ph.ph_len = htonl(len);
+	phu.ph.ph_nxt = IPPROTO_ICMPV6;
+
+	sum = 0;
+	for (i = 0; i < sizeof(phu.pa) / sizeof(phu.pa[0]); i++)
+		sum += phu.pa[i];
+
+	sp = (const u_int16_t *)icp;
+
+	for (i = 0; i < (len & ~1); i += 2)
+		sum += *sp++;
+
+	if (len & 1)
+		sum += htons((*(const u_int8_t *)sp) << 8);
+
+	while (sum > 0xffff)
+		sum = (sum & 0xffff) + (sum >> 16);
+	sum = ~sum & 0xffff;
+
+	return (sum);
+}
+
+void
+icmp6_print(const u_char *bp, u_int length, const u_char *bp2, int fragmented)
+{
+	const struct icmp6_hdr *dp;
+	const struct ip6_hdr *ip;
+	const struct ip6_hdr *oip;
+	const struct udphdr *ouh;
+	int dport;
+	const u_char *ep;
+	u_int prot;
+
+	dp = (struct icmp6_hdr *)bp;
+	ip = (struct ip6_hdr *)bp2;
+	oip = (struct ip6_hdr *)(dp + 1);
+	/* 'ep' points to the end of available data. */
+	ep = snapend;
+
+	TCHECK(dp->icmp6_cksum);
+
+	if (vflag && !fragmented) {
+		int sum = dp->icmp6_cksum;
+
+		if (TTEST2(bp[0], length)) {
+			sum = icmp6_cksum(ip, dp, length);
+			if (sum != 0)
+				(void)printf("[bad icmp6 cksum %x!] ", sum);
+			else
+				(void)printf("[icmp6 sum ok] ");
+		}
+	}
+
+        printf("ICMP6, %s", tok2str(icmp6_type_values,"unknown icmp6 type (%u)",dp->icmp6_type));
+
+        /* display cosmetics: print the packet length for printer that use the vflag now */
+        if (vflag && (dp->icmp6_type ==
+                      ND_ROUTER_SOLICIT ||
+                      ND_ROUTER_ADVERT ||
+                      ND_NEIGHBOR_ADVERT ||
+                      ND_NEIGHBOR_SOLICIT ||
+                      ND_REDIRECT ||
+                      ICMP6_HADISCOV_REPLY ||
+                      ICMP6_MOBILEPREFIX_ADVERT ))
+            printf(", length %u", length);
+                      
+	switch (dp->icmp6_type) {
+	case ICMP6_DST_UNREACH:
+		TCHECK(oip->ip6_dst);
+                printf(", %s", tok2str(icmp6_dst_unreach_code_values,"unknown unreach code (%u)",dp->icmp6_code));
+		switch (dp->icmp6_code) {
+
+		case ICMP6_DST_UNREACH_NOROUTE: /* fall through */
+		case ICMP6_DST_UNREACH_ADMIN:
+		case ICMP6_DST_UNREACH_ADDR:
+                        printf(" %s",ip6addr_string(&oip->ip6_dst));
+                        break;
+		case ICMP6_DST_UNREACH_BEYONDSCOPE:
+			printf(" %s, source address %s",
+			       ip6addr_string(&oip->ip6_dst),
+			       ip6addr_string(&oip->ip6_src));
+			break;
+		case ICMP6_DST_UNREACH_NOPORT:
+			if ((ouh = get_upperlayer((u_char *)oip, &prot))
+			    == NULL)
+				goto trunc;
+
+			dport = EXTRACT_16BITS(&ouh->uh_dport);
+			switch (prot) {
+			case IPPROTO_TCP:
+				printf(", %s tcp port %s",
+					ip6addr_string(&oip->ip6_dst),
+					tcpport_string(dport));
+				break;
+			case IPPROTO_UDP:
+				printf(", %s udp port %s",
+					ip6addr_string(&oip->ip6_dst),
+					udpport_string(dport));
+				break;
+			default:
+				printf(", %s protocol %d port %d unreachable",
+					ip6addr_string(&oip->ip6_dst),
+					oip->ip6_nxt, dport);
+				break;
+			}
+			break;
+		default:
+                    if (vflag <= 1) {
+                            print_unknown_data(bp,"\n\t",length);
+                            return;
+                    }
+                    break;
+		}
+		break;
+	case ICMP6_PACKET_TOO_BIG:
+		TCHECK(dp->icmp6_mtu);
+		printf(", mtu %u", EXTRACT_32BITS(&dp->icmp6_mtu));
+		break;
+	case ICMP6_TIME_EXCEEDED:
+		TCHECK(oip->ip6_dst);
+		switch (dp->icmp6_code) {
+		case ICMP6_TIME_EXCEED_TRANSIT:
+			printf(" for %s",
+				ip6addr_string(&oip->ip6_dst));
+			break;
+		case ICMP6_TIME_EXCEED_REASSEMBLY:
+			printf(" (reassembly)");
+			break;
+		default:
+			printf(", unknown code (%u)", dp->icmp6_code);
+			break;
+		}
+		break;
+	case ICMP6_PARAM_PROB:
+		TCHECK(oip->ip6_dst);
+		switch (dp->icmp6_code) {
+		case ICMP6_PARAMPROB_HEADER:
+			printf(", errorneous - octet %u", EXTRACT_32BITS(&dp->icmp6_pptr));
+			break;
+		case ICMP6_PARAMPROB_NEXTHEADER:
+			printf(", next header - octet %u", EXTRACT_32BITS(&dp->icmp6_pptr));
+			break;
+		case ICMP6_PARAMPROB_OPTION:
+			printf(", option - octet %u", EXTRACT_32BITS(&dp->icmp6_pptr));
+			break;
+		default:
+			printf(", code-#%d",
+			       dp->icmp6_code);
+			break;
+		}
+		break;
+	case ICMP6_ECHO_REQUEST:
+	case ICMP6_ECHO_REPLY:
+		TCHECK(dp->icmp6_seq);
+		printf(", seq %u", EXTRACT_16BITS(&dp->icmp6_seq));
+		break;
+	case ICMP6_MEMBERSHIP_QUERY:
+		if (length == MLD_MINLEN) {
+			mld6_print((const u_char *)dp);
+		} else if (length >= MLDV2_MINLEN) {
+			printf("v2 ");
+			mldv2_query_print((const u_char *)dp, length);
+		} else {
+			printf(" unknown-version (len %u) ", length);
+		}
+		break;
+	case ICMP6_MEMBERSHIP_REPORT:
+		mld6_print((const u_char *)dp);
+		break;
+	case ICMP6_MEMBERSHIP_REDUCTION:
+		mld6_print((const u_char *)dp);
+		break;
+	case ND_ROUTER_SOLICIT:
+#define RTSOLLEN 8
+		if (vflag) {
+			icmp6_opt_print((const u_char *)dp + RTSOLLEN,
+					length - RTSOLLEN);
+		}
+		break;
+	case ND_ROUTER_ADVERT:
+#define RTADVLEN 16
+		if (vflag) {
+			struct nd_router_advert *p;
+
+			p = (struct nd_router_advert *)dp;
+			TCHECK(p->nd_ra_retransmit);
+			printf("\n\thop limit %u, Flags [%s]" \
+                               ", pref %s, router lifetime %us, reachable time %us, retrans time %us",
+                               (u_int)p->nd_ra_curhoplimit,
+                               bittok2str(icmp6_opt_ra_flag_values,"none",(p->nd_ra_flags_reserved)),
+                               get_rtpref(p->nd_ra_flags_reserved),
+                               EXTRACT_16BITS(&p->nd_ra_router_lifetime),
+                               EXTRACT_32BITS(&p->nd_ra_reachable),
+                               EXTRACT_32BITS(&p->nd_ra_retransmit));
+
+			icmp6_opt_print((const u_char *)dp + RTADVLEN,
+					length - RTADVLEN);
+		}
+		break;
+	case ND_NEIGHBOR_SOLICIT:
+	    {
+		struct nd_neighbor_solicit *p;
+		p = (struct nd_neighbor_solicit *)dp;
+		TCHECK(p->nd_ns_target);
+		printf(", who has %s", ip6addr_string(&p->nd_ns_target));
+		if (vflag) {
+#define NDSOLLEN 24
+			icmp6_opt_print((const u_char *)dp + NDSOLLEN,
+					length - NDSOLLEN);
+		}
+	    }
+		break;
+	case ND_NEIGHBOR_ADVERT:
+	    {
+		struct nd_neighbor_advert *p;
+
+		p = (struct nd_neighbor_advert *)dp;
+		TCHECK(p->nd_na_target);
+		printf(", tgt is %s",
+			ip6addr_string(&p->nd_na_target));
+		if (vflag) {
+                        printf(", Flags [%s]",
+                               bittok2str(icmp6_nd_na_flag_values,
+                                          "none",
+                                          EXTRACT_32BITS(&p->nd_na_flags_reserved)));
+#define NDADVLEN 24
+			icmp6_opt_print((const u_char *)dp + NDADVLEN,
+					length - NDADVLEN);
+#undef NDADVLEN
+		}
+	    }
+		break;
+	case ND_REDIRECT:
+#define RDR(i) ((struct nd_redirect *)(i))
+		TCHECK(RDR(dp)->nd_rd_dst);
+		printf(", %s", getname6((const u_char *)&RDR(dp)->nd_rd_dst));
+		TCHECK(RDR(dp)->nd_rd_target);
+		printf(" to %s",
+		    getname6((const u_char*)&RDR(dp)->nd_rd_target));
+#define REDIRECTLEN 40
+		if (vflag) {
+			icmp6_opt_print((const u_char *)dp + REDIRECTLEN,
+					length - REDIRECTLEN);
+		}
+		break;
+#undef REDIRECTLEN
+#undef RDR
+	case ICMP6_ROUTER_RENUMBERING:
+		icmp6_rrenum_print(bp, ep);
+		break;
+	case ICMP6_NI_QUERY:
+	case ICMP6_NI_REPLY:
+		icmp6_nodeinfo_print(length, bp, ep);
+		break;
+	case IND_SOLICIT:
+	case IND_ADVERT:
+		break;
+	case ICMP6_V2_MEMBERSHIP_REPORT:
+		mldv2_report_print((const u_char *) dp, length);
+		break;
+	case ICMP6_MOBILEPREFIX_SOLICIT: /* fall through */
+	case ICMP6_HADISCOV_REQUEST:
+                TCHECK(dp->icmp6_data16[0]);
+                printf(", id 0x%04x", EXTRACT_16BITS(&dp->icmp6_data16[0]));
+                break;
+	case ICMP6_HADISCOV_REPLY:
+		if (vflag) {
+			struct in6_addr *in6;
+			u_char *cp;
+
+			TCHECK(dp->icmp6_data16[0]);
+			printf(", id 0x%04x", EXTRACT_16BITS(&dp->icmp6_data16[0]));
+			cp = (u_char *)dp + length;
+			in6 = (struct in6_addr *)(dp + 1);
+			for (; (u_char *)in6 < cp; in6++) {
+				TCHECK(*in6);
+				printf(", %s", ip6addr_string(in6));
+			}
+		}
+		break;
+	case ICMP6_MOBILEPREFIX_ADVERT:
+		if (vflag) {
+			TCHECK(dp->icmp6_data16[0]);
+			printf(", id 0x%04x", EXTRACT_16BITS(&dp->icmp6_data16[0]));
+			if (dp->icmp6_data16[1] & 0xc0)
+				printf(" ");
+			if (dp->icmp6_data16[1] & 0x80)
+				printf("M");
+			if (dp->icmp6_data16[1] & 0x40)
+				printf("O");
+#define MPADVLEN 8
+			icmp6_opt_print((const u_char *)dp + MPADVLEN,
+					length - MPADVLEN);
+		}
+		break;
+	default:
+                printf(", length %u", length);
+                if (vflag <= 1)
+                    print_unknown_data(bp,"\n\t", length);
+                return;
+        }
+        if (!vflag)
+            printf(", length %u", length); 
+	return;
+trunc:
+	fputs("[|icmp6]", stdout);
+}
+
+static struct udphdr *
+get_upperlayer(u_char *bp, u_int *prot)
+{
+	const u_char *ep;
+	struct ip6_hdr *ip6 = (struct ip6_hdr *)bp;
+	struct udphdr *uh;
+	struct ip6_hbh *hbh;
+	struct ip6_frag *fragh;
+	struct ah *ah;
+	u_int nh;
+	int hlen;
+
+	/* 'ep' points to the end of available data. */
+	ep = snapend;
+
+	if (!TTEST(ip6->ip6_nxt))
+		return NULL;
+
+	nh = ip6->ip6_nxt;
+	hlen = sizeof(struct ip6_hdr);
+
+	while (bp < ep) {
+		bp += hlen;
+
+		switch(nh) {
+		case IPPROTO_UDP:
+		case IPPROTO_TCP:
+			uh = (struct udphdr *)bp;
+			if (TTEST(uh->uh_dport)) {
+				*prot = nh;
+				return(uh);
+			}
+			else
+				return(NULL);
+			/* NOTREACHED */
+
+		case IPPROTO_HOPOPTS:
+		case IPPROTO_DSTOPTS:
+		case IPPROTO_ROUTING:
+			hbh = (struct ip6_hbh *)bp;
+			if (!TTEST(hbh->ip6h_len))
+				return(NULL);
+			nh = hbh->ip6h_nxt;
+			hlen = (hbh->ip6h_len + 1) << 3;
+			break;
+
+		case IPPROTO_FRAGMENT: /* this should be odd, but try anyway */
+			fragh = (struct ip6_frag *)bp;
+			if (!TTEST(fragh->ip6f_offlg))
+				return(NULL);
+			/* fragments with non-zero offset are meaningless */
+			if ((EXTRACT_16BITS(&fragh->ip6f_offlg) & IP6F_OFF_MASK) != 0)
+				return(NULL);
+			nh = fragh->ip6f_nxt;
+			hlen = sizeof(struct ip6_frag);
+			break;
+
+		case IPPROTO_AH:
+			ah = (struct ah *)bp;
+			if (!TTEST(ah->ah_len))
+				return(NULL);
+			nh = ah->ah_nxt;
+			hlen = (ah->ah_len + 2) << 2;
+			break;
+
+		default:	/* unknown or undecodable header */
+			*prot = nh; /* meaningless, but set here anyway */
+			return(NULL);
+		}
+	}
+
+	return(NULL);		/* should be notreached, though */
+}
+
+static void
+icmp6_opt_print(const u_char *bp, int resid)
+{
+	const struct nd_opt_hdr *op;
+	const struct nd_opt_hdr *opl;	/* why there's no struct? */
+	const struct nd_opt_prefix_info *opp;
+	const struct icmp6_opts_redirect *opr;
+	const struct nd_opt_mtu *opm;
+	const struct nd_opt_advinterval *opa;
+	const struct nd_opt_homeagent_info *oph;
+	const struct nd_opt_route_info *opri;
+	const u_char *cp, *ep;
+	struct in6_addr in6, *in6p;
+	size_t l;
+
+#define ECHECK(var) if ((u_char *)&(var) > ep - sizeof(var)) return
+
+	cp = bp;
+	/* 'ep' points to the end of available data. */
+	ep = snapend;
+
+	while (cp < ep) {
+		op = (struct nd_opt_hdr *)cp;
+
+		ECHECK(op->nd_opt_len);
+		if (resid <= 0)
+			return;
+		if (op->nd_opt_len == 0)
+			goto trunc;
+		if (cp + (op->nd_opt_len << 3) > ep)
+			goto trunc;
+
+                printf("\n\t  %s option (%u), length %u (%u): ",
+                       tok2str(icmp6_opt_values, "unknown", op->nd_opt_type),
+                       op->nd_opt_type,
+                       op->nd_opt_len << 3,
+                       op->nd_opt_len);
+
+		switch (op->nd_opt_type) {
+		case ND_OPT_SOURCE_LINKADDR:
+			opl = (struct nd_opt_hdr *)op;
+			l = (op->nd_opt_len << 3) - 2;
+			print_lladdr(cp + 2, l);
+			break;
+		case ND_OPT_TARGET_LINKADDR:
+			opl = (struct nd_opt_hdr *)op;
+			l = (op->nd_opt_len << 3) - 2;
+			print_lladdr(cp + 2, l);
+			break;
+		case ND_OPT_PREFIX_INFORMATION:
+			opp = (struct nd_opt_prefix_info *)op;
+			TCHECK(opp->nd_opt_pi_prefix);
+                        printf("%s/%u%s, Flags [%s], valid time %ss",
+                               ip6addr_string(&opp->nd_opt_pi_prefix),
+                               opp->nd_opt_pi_prefix_len,
+                               (op->nd_opt_len != 4) ? "badlen" : "",
+                               bittok2str(icmp6_opt_pi_flag_values, "none", opp->nd_opt_pi_flags_reserved),
+                               get_lifetime(EXTRACT_32BITS(&opp->nd_opt_pi_valid_time)));
+                        printf(", pref. time %ss", get_lifetime(EXTRACT_32BITS(&opp->nd_opt_pi_preferred_time)));
+			break;
+		case ND_OPT_REDIRECTED_HEADER:
+			opr = (struct icmp6_opts_redirect *)op;
+                        print_unknown_data(bp,"\n\t    ",op->nd_opt_len<<3);
+			/* xxx */
+			break;
+		case ND_OPT_MTU:
+			opm = (struct nd_opt_mtu *)op;
+			TCHECK(opm->nd_opt_mtu_mtu);
+			printf(" %u%s",
+                               EXTRACT_32BITS(&opm->nd_opt_mtu_mtu),
+                               (op->nd_opt_len != 1) ? "bad option length" : "" );
+                        break;
+		case ND_OPT_ADVINTERVAL:
+			opa = (struct nd_opt_advinterval *)op;
+			TCHECK(opa->nd_opt_adv_interval);
+			printf(" %us", EXTRACT_32BITS(&opa->nd_opt_adv_interval));
+			break;
+		case ND_OPT_HOMEAGENT_INFO:
+			oph = (struct nd_opt_homeagent_info *)op;
+			TCHECK(oph->nd_opt_hai_lifetime);
+			printf(" preference %u, lifetime %u",
+                               EXTRACT_16BITS(&oph->nd_opt_hai_preference),
+                               EXTRACT_16BITS(&oph->nd_opt_hai_lifetime));
+			break;
+		case ND_OPT_ROUTE_INFO:
+			opri = (struct nd_opt_route_info *)op;
+			TCHECK(opri->nd_opt_rti_lifetime);
+			memset(&in6, 0, sizeof(in6));
+			in6p = (struct in6_addr *)(opri + 1);
+			switch (op->nd_opt_len) {
+			case 1:
+				break;
+			case 2:
+				TCHECK2(*in6p, 8);
+				memcpy(&in6, opri + 1, 8);
+				break;
+			case 3:
+				TCHECK(*in6p);
+				memcpy(&in6, opri + 1, sizeof(in6));
+				break;
+			default:
+				goto trunc;
+			}
+			printf(" %s/%u", ip6addr_string(&in6),
+			    opri->nd_opt_rti_prefixlen);
+			printf(", pref=%s", get_rtpref(opri->nd_opt_rti_flags));
+			printf(", lifetime=%s",
+			    get_lifetime(EXTRACT_32BITS(&opri->nd_opt_rti_lifetime)));
+			break;
+		default:
+                        if (vflag <= 1) {
+                            print_unknown_data(cp+2,"\n\t  ", (op->nd_opt_len << 3) - 2); /* skip option header */
+                            return;
+                        }
+                        break;
+		}
+                /* do we want to see an additional hexdump ? */
+                if (vflag> 1)
+                    print_unknown_data(cp+2,"\n\t    ", (op->nd_opt_len << 3) - 2); /* skip option header */
+
+		cp += op->nd_opt_len << 3;
+		resid -= op->nd_opt_len << 3;
+	}
+	return;
+
+ trunc:
+	fputs("[ndp opt]", stdout);
+	return;
+#undef ECHECK
+}
+
+static void
+mld6_print(const u_char *bp)
+{
+	struct mld6_hdr *mp = (struct mld6_hdr *)bp;
+	const u_char *ep;
+
+	/* 'ep' points to the end of available data. */
+	ep = snapend;
+
+	if ((u_char *)mp + sizeof(*mp) > ep)
+		return;
+
+	printf("max resp delay: %d ", EXTRACT_16BITS(&mp->mld6_maxdelay));
+	printf("addr: %s", ip6addr_string(&mp->mld6_addr));
+}
+
+static void
+mldv2_report_print(const u_char *bp, u_int len)
+{
+    struct icmp6_hdr *icp = (struct icmp6_hdr *) bp;
+    u_int group, nsrcs, ngroups;
+    u_int i, j;
+
+    /* Minimum len is 8 */
+    if (len < 8) {
+	printf(" [invalid len %d]", len);
+	return;
+    }
+
+    TCHECK(icp->icmp6_data16[1]);
+    ngroups = ntohs(icp->icmp6_data16[1]);
+    printf(", %d group record(s)", ngroups);
+    if (vflag > 0) {
+	/* Print the group records */
+	group = 8;
+        for (i = 0; i < ngroups; i++) {
+	    /* type(1) + auxlen(1) + numsrc(2) + grp(16) */
+	    if (len < group + 20) {
+		printf(" [invalid number of groups]");
+		return;
+	    }
+            TCHECK2(bp[group + 4], sizeof(struct in6_addr));
+            printf(" [gaddr %s", ip6addr_string(&bp[group + 4]));
+	    printf(" %s", tok2str(mldv2report2str, " [v2-report-#%d]",
+								bp[group]));
+            nsrcs = (bp[group + 2] << 8) + bp[group + 3];
+	    /* Check the number of sources and print them */
+	    if (len < group + 20 + (nsrcs * sizeof(struct in6_addr))) {
+		printf(" [invalid number of sources %d]", nsrcs);
+		return;
+	    }
+            if (vflag == 1)
+                printf(", %d source(s)", nsrcs);
+            else {
+		/* Print the sources */
+                (void)printf(" {");
+                for (j = 0; j < nsrcs; j++) {
+                    TCHECK2(bp[group + 20 + j * sizeof(struct in6_addr)],
+                            sizeof(struct in6_addr));
+		    printf(" %s", ip6addr_string(&bp[group + 20 + j * sizeof(struct in6_addr)]));
+		}
+                (void)printf(" }");
+            }
+	    /* Next group record */
+            group += 20 + nsrcs * sizeof(struct in6_addr);
+	    printf("]");
+        }
+    }
+    return;
+trunc:
+    (void)printf("[|icmp6]");
+    return;
+}
+
+static void
+mldv2_query_print(const u_char *bp, u_int len)
+{
+    struct icmp6_hdr *icp = (struct icmp6_hdr *) bp;
+    u_int mrc;
+    int mrt, qqi;
+    u_int nsrcs;
+    register u_int i;
+
+    /* Minimum len is 28 */
+    if (len < 28) {
+	printf(" [invalid len %d]", len);
+	return;
+    }
+    TCHECK(icp->icmp6_data16[0]);
+    mrc = ntohs(icp->icmp6_data16[0]);
+    if (mrc < 32768) {
+	mrt = mrc;
+    } else {
+        mrt = ((mrc & 0x0fff) | 0x1000) << (((mrc & 0x7000) >> 12) + 3);
+    }
+    if (vflag) {
+	(void)printf(" [max resp delay=%d]", mrt);
+    }
+    TCHECK2(bp[8], sizeof(struct in6_addr));
+    printf(" [gaddr %s", ip6addr_string(&bp[8]));
+
+    if (vflag) {
+        TCHECK(bp[25]);
+	if (bp[24] & 0x08) {
+		printf(" sflag");
+	}
+	if (bp[24] & 0x07) {
+		printf(" robustness=%d", bp[24] & 0x07);
+	}
+	if (bp[25] < 128) {
+		qqi = bp[25];
+	} else {
+		qqi = ((bp[25] & 0x0f) | 0x10) << (((bp[25] & 0x70) >> 4) + 3);
+	}
+	printf(" qqi=%d", qqi);
+    }
+
+    TCHECK2(bp[26], 2);
+    nsrcs = ntohs(*(u_short *)&bp[26]);
+    if (nsrcs > 0) {
+	if (len < 28 + nsrcs * sizeof(struct in6_addr))
+	    printf(" [invalid number of sources]");
+	else if (vflag > 1) {
+	    printf(" {");
+	    for (i = 0; i < nsrcs; i++) {
+		TCHECK2(bp[28 + i * sizeof(struct in6_addr)],
+                        sizeof(struct in6_addr));
+		printf(" %s", ip6addr_string(&bp[28 + i * sizeof(struct in6_addr)]));
+	    }
+	    printf(" }");
+	} else
+	    printf(", %d source(s)", nsrcs);
+    }
+    printf("]");
+    return;
+trunc:
+    (void)printf("[|icmp6]");
+    return;
+}
+
+void
+dnsname_print(const u_char *cp, const u_char *ep)
+{
+	int i;
+
+	/* DNS name decoding - no decompression */
+	printf(", \"");
+	while (cp < ep) {
+		i = *cp++;
+		if (i) {
+			if (i > ep - cp) {
+				printf("???");
+				break;
+			}
+			while (i-- && cp < ep) {
+				safeputchar(*cp);
+				cp++;
+			}
+			if (cp + 1 < ep && *cp)
+				printf(".");
+		} else {
+			if (cp == ep) {
+				/* FQDN */
+				printf(".");
+			} else if (cp + 1 == ep && *cp == '\0') {
+				/* truncated */
+			} else {
+				/* invalid */
+				printf("???");
+			}
+			break;
+		}
+	}
+	printf("\"");
+}
+
+static void
+icmp6_nodeinfo_print(u_int icmp6len, const u_char *bp, const u_char *ep)
+{
+	struct icmp6_nodeinfo *ni6;
+	struct icmp6_hdr *dp;
+	const u_char *cp;
+	size_t siz, i;
+	int needcomma;
+
+	if (ep < bp)
+		return;
+	dp = (struct icmp6_hdr *)bp;
+	ni6 = (struct icmp6_nodeinfo *)bp;
+	siz = ep - bp;
+
+	switch (ni6->ni_type) {
+	case ICMP6_NI_QUERY:
+		if (siz == sizeof(*dp) + 4) {
+			/* KAME who-are-you */
+			printf(" who-are-you request");
+			break;
+		}
+		printf(" node information query");
+
+		TCHECK2(*dp, sizeof(*ni6));
+		ni6 = (struct icmp6_nodeinfo *)dp;
+		printf(" (");	/*)*/
+		switch (EXTRACT_16BITS(&ni6->ni_qtype)) {
+		case NI_QTYPE_NOOP:
+			printf("noop");
+			break;
+		case NI_QTYPE_SUPTYPES:
+			printf("supported qtypes");
+			i = EXTRACT_16BITS(&ni6->ni_flags);
+			if (i)
+				printf(" [%s]", (i & 0x01) ? "C" : "");
+			break;
+			break;
+		case NI_QTYPE_FQDN:
+			printf("DNS name");
+			break;
+		case NI_QTYPE_NODEADDR:
+			printf("node addresses");
+			i = ni6->ni_flags;
+			if (!i)
+				break;
+			/* NI_NODEADDR_FLAG_TRUNCATE undefined for query */
+			printf(" [%s%s%s%s%s%s]",
+			    (i & NI_NODEADDR_FLAG_ANYCAST) ? "a" : "",
+			    (i & NI_NODEADDR_FLAG_GLOBAL) ? "G" : "",
+			    (i & NI_NODEADDR_FLAG_SITELOCAL) ? "S" : "",
+			    (i & NI_NODEADDR_FLAG_LINKLOCAL) ? "L" : "",
+			    (i & NI_NODEADDR_FLAG_COMPAT) ? "C" : "",
+			    (i & NI_NODEADDR_FLAG_ALL) ? "A" : "");
+			break;
+		default:
+			printf("unknown");
+			break;
+		}
+
+		if (ni6->ni_qtype == NI_QTYPE_NOOP ||
+		    ni6->ni_qtype == NI_QTYPE_SUPTYPES) {
+			if (siz != sizeof(*ni6))
+				if (vflag)
+					printf(", invalid len");
+			/*(*/
+			printf(")");
+			break;
+		}
+
+
+		/* XXX backward compat, icmp-name-lookup-03 */
+		if (siz == sizeof(*ni6)) {
+			printf(", 03 draft");
+			/*(*/
+			printf(")");
+			break;
+		}
+
+		switch (ni6->ni_code) {
+		case ICMP6_NI_SUBJ_IPV6:
+			if (!TTEST2(*dp,
+			    sizeof(*ni6) + sizeof(struct in6_addr)))
+				break;
+			if (siz != sizeof(*ni6) + sizeof(struct in6_addr)) {
+				if (vflag)
+					printf(", invalid subject len");
+				break;
+			}
+			printf(", subject=%s",
+			    getname6((const u_char *)(ni6 + 1)));
+			break;
+		case ICMP6_NI_SUBJ_FQDN:
+			printf(", subject=DNS name");
+			cp = (const u_char *)(ni6 + 1);
+			if (cp[0] == ep - cp - 1) {
+				/* icmp-name-lookup-03, pascal string */
+				if (vflag)
+					printf(", 03 draft");
+				cp++;
+				printf(", \"");
+				while (cp < ep) {
+					safeputchar(*cp);
+					cp++;
+				}
+				printf("\"");
+			} else
+				dnsname_print(cp, ep);
+			break;
+		case ICMP6_NI_SUBJ_IPV4:
+			if (!TTEST2(*dp, sizeof(*ni6) + sizeof(struct in_addr)))
+				break;
+			if (siz != sizeof(*ni6) + sizeof(struct in_addr)) {
+				if (vflag)
+					printf(", invalid subject len");
+				break;
+			}
+			printf(", subject=%s",
+			    getname((const u_char *)(ni6 + 1)));
+			break;
+		default:
+			printf(", unknown subject");
+			break;
+		}
+
+		/*(*/
+		printf(")");
+		break;
+
+	case ICMP6_NI_REPLY:
+		if (icmp6len > siz) {
+			printf("[|icmp6: node information reply]");
+			break;
+		}
+
+		needcomma = 0;
+
+		ni6 = (struct icmp6_nodeinfo *)dp;
+		printf(" node information reply");
+		printf(" (");	/*)*/
+		switch (ni6->ni_code) {
+		case ICMP6_NI_SUCCESS:
+			if (vflag) {
+				printf("success");
+				needcomma++;
+			}
+			break;
+		case ICMP6_NI_REFUSED:
+			printf("refused");
+			needcomma++;
+			if (siz != sizeof(*ni6))
+				if (vflag)
+					printf(", invalid length");
+			break;
+		case ICMP6_NI_UNKNOWN:
+			printf("unknown");
+			needcomma++;
+			if (siz != sizeof(*ni6))
+				if (vflag)
+					printf(", invalid length");
+			break;
+		}
+
+		if (ni6->ni_code != ICMP6_NI_SUCCESS) {
+			/*(*/
+			printf(")");
+			break;
+		}
+
+		switch (EXTRACT_16BITS(&ni6->ni_qtype)) {
+		case NI_QTYPE_NOOP:
+			if (needcomma)
+				printf(", ");
+			printf("noop");
+			if (siz != sizeof(*ni6))
+				if (vflag)
+					printf(", invalid length");
+			break;
+		case NI_QTYPE_SUPTYPES:
+			if (needcomma)
+				printf(", ");
+			printf("supported qtypes");
+			i = EXTRACT_16BITS(&ni6->ni_flags);
+			if (i)
+				printf(" [%s]", (i & 0x01) ? "C" : "");
+			break;
+		case NI_QTYPE_FQDN:
+			if (needcomma)
+				printf(", ");
+			printf("DNS name");
+			cp = (const u_char *)(ni6 + 1) + 4;
+			if (cp[0] == ep - cp - 1) {
+				/* icmp-name-lookup-03, pascal string */
+				if (vflag)
+					printf(", 03 draft");
+				cp++;
+				printf(", \"");
+				while (cp < ep) {
+					safeputchar(*cp);
+					cp++;
+				}
+				printf("\"");
+			} else
+				dnsname_print(cp, ep);
+			if ((EXTRACT_16BITS(&ni6->ni_flags) & 0x01) != 0)
+				printf(" [TTL=%u]", *(u_int32_t *)(ni6 + 1));
+			break;
+		case NI_QTYPE_NODEADDR:
+			if (needcomma)
+				printf(", ");
+			printf("node addresses");
+			i = sizeof(*ni6);
+			while (i < siz) {
+				if (i + sizeof(struct in6_addr) + sizeof(int32_t) > siz)
+					break;
+				printf(" %s", getname6(bp + i));
+				i += sizeof(struct in6_addr);
+				printf("(%d)", (int32_t)EXTRACT_32BITS(bp + i));
+				i += sizeof(int32_t);
+			}
+			i = ni6->ni_flags;
+			if (!i)
+				break;
+			printf(" [%s%s%s%s%s%s%s]",
+			    (i & NI_NODEADDR_FLAG_ANYCAST) ? "a" : "",
+			    (i & NI_NODEADDR_FLAG_GLOBAL) ? "G" : "",
+			    (i & NI_NODEADDR_FLAG_SITELOCAL) ? "S" : "",
+			    (i & NI_NODEADDR_FLAG_LINKLOCAL) ? "L" : "",
+			    (i & NI_NODEADDR_FLAG_COMPAT) ? "C" : "",
+			    (i & NI_NODEADDR_FLAG_ALL) ? "A" : "",
+			    (i & NI_NODEADDR_FLAG_TRUNCATE) ? "T" : "");
+			break;
+		default:
+			if (needcomma)
+				printf(", ");
+			printf("unknown");
+			break;
+		}
+
+		/*(*/
+		printf(")");
+		break;
+	}
+	return;
+
+trunc:
+	fputs("[|icmp6]", stdout);
+}
+
+static void
+icmp6_rrenum_print(const u_char *bp, const u_char *ep)
+{
+	struct icmp6_router_renum *rr6;
+	const char *cp;
+	struct rr_pco_match *match;
+	struct rr_pco_use *use;
+	char hbuf[NI_MAXHOST];
+	int n;
+
+	if (ep < bp)
+		return;
+	rr6 = (struct icmp6_router_renum *)bp;
+	cp = (const char *)(rr6 + 1);
+
+	TCHECK(rr6->rr_reserved);
+	switch (rr6->rr_code) {
+	case ICMP6_ROUTER_RENUMBERING_COMMAND:
+		printf("router renum: command");
+		break;
+	case ICMP6_ROUTER_RENUMBERING_RESULT:
+		printf("router renum: result");
+		break;
+	case ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET:
+		printf("router renum: sequence number reset");
+		break;
+	default:
+		printf("router renum: code-#%d", rr6->rr_code);
+		break;
+	}
+
+	printf(", seq=%u", EXTRACT_32BITS(&rr6->rr_seqnum));
+
+	if (vflag) {
+#define F(x, y)	((rr6->rr_flags) & (x) ? (y) : "")
+		printf("[");	/*]*/
+		if (rr6->rr_flags) {
+			printf("%s%s%s%s%s,", F(ICMP6_RR_FLAGS_TEST, "T"),
+			    F(ICMP6_RR_FLAGS_REQRESULT, "R"),
+			    F(ICMP6_RR_FLAGS_FORCEAPPLY, "A"),
+			    F(ICMP6_RR_FLAGS_SPECSITE, "S"),
+			    F(ICMP6_RR_FLAGS_PREVDONE, "P"));
+		}
+		printf("seg=%u,", rr6->rr_segnum);
+		printf("maxdelay=%u", rr6->rr_maxdelay);
+		if (rr6->rr_reserved)
+			printf("rsvd=0x%x", EXTRACT_16BITS(&rr6->rr_reserved));
+		/*[*/
+		printf("]");
+#undef F
+	}
+
+	if (rr6->rr_code == ICMP6_ROUTER_RENUMBERING_COMMAND) {
+		match = (struct rr_pco_match *)cp;
+		cp = (const char *)(match + 1);
+
+		TCHECK(match->rpm_prefix);
+
+		if (vflag > 1)
+			printf("\n\t");
+		else
+			printf(" ");
+		printf("match(");	/*)*/
+		switch (match->rpm_code) {
+		case RPM_PCO_ADD:	printf("add"); break;
+		case RPM_PCO_CHANGE:	printf("change"); break;
+		case RPM_PCO_SETGLOBAL:	printf("setglobal"); break;
+		default:		printf("#%u", match->rpm_code); break;
+		}
+
+		if (vflag) {
+			printf(",ord=%u", match->rpm_ordinal);
+			printf(",min=%u", match->rpm_minlen);
+			printf(",max=%u", match->rpm_maxlen);
+		}
+		if (inet_ntop(AF_INET6, &match->rpm_prefix, hbuf, sizeof(hbuf)))
+			printf(",%s/%u", hbuf, match->rpm_matchlen);
+		else
+			printf(",?/%u", match->rpm_matchlen);
+		/*(*/
+		printf(")");
+
+		n = match->rpm_len - 3;
+		if (n % 4)
+			goto trunc;
+		n /= 4;
+		while (n-- > 0) {
+			use = (struct rr_pco_use *)cp;
+			cp = (const char *)(use + 1);
+
+			TCHECK(use->rpu_prefix);
+
+			if (vflag > 1)
+				printf("\n\t");
+			else
+				printf(" ");
+			printf("use(");	/*)*/
+			if (use->rpu_flags) {
+#define F(x, y)	((use->rpu_flags) & (x) ? (y) : "")
+				printf("%s%s,",
+				    F(ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME, "V"),
+				    F(ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME, "P"));
+#undef F
+			}
+			if (vflag) {
+				printf("mask=0x%x,", use->rpu_ramask);
+				printf("raflags=0x%x,", use->rpu_raflags);
+				if (~use->rpu_vltime == 0)
+					printf("vltime=infty,");
+				else
+					printf("vltime=%u,",
+					    EXTRACT_32BITS(&use->rpu_vltime));
+				if (~use->rpu_pltime == 0)
+					printf("pltime=infty,");
+				else
+					printf("pltime=%u,",
+					    EXTRACT_32BITS(&use->rpu_pltime));
+			}
+			if (inet_ntop(AF_INET6, &use->rpu_prefix, hbuf,
+			    sizeof(hbuf)))
+				printf("%s/%u/%u", hbuf, use->rpu_uselen,
+				    use->rpu_keeplen);
+			else
+				printf("?/%u/%u", use->rpu_uselen,
+				    use->rpu_keeplen);
+			/*(*/
+			printf(")");
+		}
+	}
+
+	return;
+
+trunc:
+	fputs("[|icmp6]", stdout);
+}
+
+#endif /* INET6 */