README.hpux - platform/external/libpcap - Gitiles

 For HP-UX 11i (11.11) and later, there are no known issues with
 promiscuous mode under HP-UX.  If you are using a earlier version of
 HP-UX and cannot upgrade, please continue reading.

 HP-UX patches to fix packet capture problems

 Note that packet-capture programs such as tcpdump may, on HP-UX, not be
 able to see packets sent from the machine on which they're running.
 Some articles on groups.google.com discussing this are:

 	http://groups.google.com/groups?selm=82ld3v%2480i%241%40mamenchi.zrz.TU-Berlin.DE

 which says:

   Newsgroups: comp.sys.hp.hpux
   Subject:  Re: Did someone made tcpdump working on 10.20 ?
   Date: 12/08/1999
   From: Lutz Jaenicke <jaenicke@emserv1.ee.TU-Berlin.DE>

   In article <82ks5i$5vc$1@news1.dti.ne.jp>, mtsat <mtsat@iris.dti.ne.jp>
   wrote:
    >Hello,
    >
    >I downloaded and compiled tcpdump3.4 a couple of week ago. I tried to use
    >it, but I can only see incoming data, never outgoing.
    >Someone (raj) explained me that a patch was missing, and that this patch
    >must me "patched" (poked) in order to see outbound data in promiscuous mode.
    >Many things to do .... So the question is : did someone has already this
    >"ready to use" PHNE_**** patch ?

    Two things:
    1. You do need a late "LAN products cumulative patch" (e.g.  PHNE_18173
   for   s700/10.20).
    2. You must use
 echo 'lanc_outbound_promisc_flag/W1' | /usr/bin/adb -w /stand/vmunix /dev/kmem
      You can insert this e.g. into /sbin/init.d/lan

    Best regards,
    Lutz

 and

 	http://groups.google.com/groups?selm=88cf4t%24p03%241%40web1.cup.hp.com

 which says:

   Newsgroups: comp.sys.hp.hpux
   Subject: Re: tcpdump only shows incoming packets
   Date: 02/15/2000
   From: Rick Jones <foo@bar.baz.invalid>

   Harald Skotnes <harald@cc.uit.no> wrote:
   > I am running HPUX 11.0 on a C200 hanging on a 100Mb switch. I have
   > compiled libpcap-0.4 an tcpdump-3.4 and it seems to work. But at a
   > closer look I only get to see the incoming packets not the
   > outgoing. I have tried tcpflow-0.12 which also uses libpcap and the
   > same thing happens.  Could someone please give me a hint on how to
   > get this right?

   Search/Read the archives ?-)

   What you are seeing is expected, un-patched, behaviour for an HP-UX
   system.  On 11.00, you need to install the latest lancommon/DLPI
   patches, and then the latest driver patch for the interface(s) in use.
   At that point, a miracle happens and you should start seeing outbound
   traffic.

 [That article also mentions the patch that appears below.]

 and

 	http://groups.google.com/groups?selm=38AA973E.96BE7DF7%40cc.uit.no

 which says:

   Newsgroups: comp.sys.hp.hpux
   Subject: Re: tcpdump only shows incoming packets
   Date: 02/16/2000
   From: Harald Skotnes <harald@cc.uit.no>

   Rick Jones wrote:

 	...

   > What you are seeing is expected, un-patched, behaviour for an HP-UX
   > system. On 11.00, you need to install the latest lancommon/DLPI
   > patches, and then the latest driver patch for the interface(s) in
   > use. At that point, a miracle happens and you should start seeing
   > outbound traffic.

   Thanks a lot.  I have this problem on several machines running HPUX
   10.20 and 11.00.  The machines where patched up before y2k so did not
   know what to think.  Anyway I have now installed PHNE_19766,
   PHNE_19826, PHNE_20008, PHNE_20735 on the C200 and now I can see the
   outbound traffic too.  Thanks again.

 (although those patches may not be the ones to install - there may be
 later patches).

 And another message to tcpdump-workers@tcpdump.org, from Rick Jones:

   Date: Mon, 29 Apr 2002 15:59:55 -0700
   From: Rick Jones
   To: tcpdump-workers@tcpdump.org
   Subject: Re: [tcpdump-workers] I Can't Capture the Outbound Traffic

 	...

   http://itrc.hp.com/ would be one place to start in a search for the most
   up-to-date patches for DLPI and the lan driver(s) used on your system (I
   cannot guess because 9000/800 is too generic - one hs to use the "model"
   command these days and/or an ioscan command (see manpage) to guess what
   the drivers (btlan[3456], gelan, etc) might be involved in addition to
   DLPI.

   Another option is to upgrade to 11i as outbound promiscuous mode support
   is there in the base OS, no patches required.

 Another posting:

 	http://groups.google.com/groups?selm=7d6gvn%24b3%241%40ocean.cup.hp.com

 indicates that you need to install the optional STREAMS product to do
 captures on HP-UX 9.x:

   Newsgroups: comp.sys.hp.hpux
   Subject:  Re: tcpdump HP/UX 9.x
   Date: 03/22/1999
   From: Rick Jones <foo@bar.baz>

   Dave Barr (barr@cis.ohio-state.edu) wrote:
   : Has anyone ported tcpdump (or something similar) to HP/UX 9.x?

   I'm reasonably confident that any port of tcpdump to 9.X would require
   the (then optional) STREAMS product.  This would bring DLPI, which is
   what one uses to access interfaces in promiscuous mode.

   I'm not sure that HP even sells the 9.X STREAMS product any longer,
   since HP-UX 9.X is off the pricelist (well, maybe 9.10 for the old 68K
   devices).

   Your best bet is to be up on 10.20 or better if that is at all
   possible.  If your hardware is supported by it, I'd go with HP-UX 11.
   If you want to see the system's own outbound traffic, you'll never get
   that functionality on 9.X, but it might happen at some point for 10.20
   and 11.X.

   rick jones

 (as per other messages cited here, the ability to see the system's own
 outbound traffic did happen).

 Rick Jones reports that HP-UX 11i needs no patches for outbound
 promiscuous mode support.

 An additional note, from Jost Martin, for HP-UX 10.20:

 	Q: How do I get ethereral on HPUX to capture the _outgoing_ packets
 	   of an interface
 	A: You need to get PHNE_20892,PHNE_20725 and PHCO_10947 (or
 	   newer, this is as of 4.4.00) and its dependencies.  Then you can
 	   enable the feature as descibed below:

 	Patch Name: PHNE_20892
 	Patch Description: s700 10.20 PCI 100Base-T cumulative patch
 		To trace the outbound packets, please do the following
 		to turn on a global promiscuous switch before running
 		the promiscuous applications like snoop or tcpdump:

 		adb -w /stand/vmunix /dev/mem
 		lanc_outbound_promisc_flag/W 1
 		(adb will echo the result showing that the flag has
 		been changed)
 		$quit
 	(Thanks for this part to HP-support, Ratingen)

 		The attached hack does this and some security-related stuff
 	(thanks to hildeb@www.stahl.bau.tu-bs.de (Ralf Hildebrandt) who
 	posted the security-part some time ago)

 		 <<hack_ip_stack>>

 		(Don't switch IP-forwarding off, if you need it !)
 		Install the hack as /sbin/init.d/hacl_ip_stack (adjust
 	permissions !) and make a sequencing-symlink
 	/sbin/rc2.d/S350hack_ip_stack pointing to this script.
 		Now all this is done on every reboot.

 According to Rick Jones, the global promiscuous switch also has to be
 turned on for HP-UX 11.00, but not for 11i - and, in fact, the switch
 doesn't even exist on 11i.

 Here's the "hack_ip_stack" script:

 -----------------------------------Cut Here-------------------------------------
 #!/sbin/sh
 #
 # nettune:  hack kernel parms for safety

 OKAY=0
 ERROR=-1

 # /usr/contrib/bin fuer nettune auf Pfad
 PATH=/sbin:/usr/sbin:/usr/bin:/usr/contrib/bin
 export PATH


 ##########
 #  main  #
 ##########

 case $1 in
    start_msg)
       print "Tune IP-Stack for security"
       exit $OKAY
       ;;

    stop_msg)
       print "This action is not applicable"
       exit $OKAY
       ;;

    stop)
       exit $OKAY
       ;;

    start)
       ;;  # fall through

    *)
       print "USAGE: $0 {start_msg | stop_msg | start | stop}" >&2
       exit $ERROR
       ;;
    esac

 ###########
 #  start  #
 ###########

 #
 # tcp-Sequence-Numbers nicht mehr inkrementieren sondern random
 # Syn-Flood-Protection an
 # ip_forwarding aus
 # Source-Routing aus
 # Ausgehende Packets an ethereal/tcpdump etc.

 /usr/contrib/bin/nettune -s tcp_random_seq 2 || exit $ERROR
 /usr/contrib/bin/nettune -s hp_syn_protect 1 || exit $ERROR
 /usr/contrib/bin/nettune -s ip_forwarding 0 || exit $ERROR
 echo 'ip_block_source_routed/W1' | /usr/bin/adb -w /stand/vmunix /dev/kmem || exit $ERROR
 echo 'lanc_outbound_promisc_flag/W 1' | adb -w /stand/vmunix /dev/mem  || exit $ERROR

 exit $OKAY
 -----------------------------------Cut Here-------------------------------------
	For HP-UX 11i (11.11) and later, there are no known issues with
	promiscuous mode under HP-UX. If you are using a earlier version of
	HP-UX and cannot upgrade, please continue reading.

	HP-UX patches to fix packet capture problems

	Note that packet-capture programs such as tcpdump may, on HP-UX, not be
	able to see packets sent from the machine on which they're running.
	Some articles on groups.google.com discussing this are:

	http://groups.google.com/groups?selm=82ld3v%2480i%241%40mamenchi.zrz.TU-Berlin.DE

	which says:

	Newsgroups: comp.sys.hp.hpux
	Subject: Re: Did someone made tcpdump working on 10.20 ?
	Date: 12/08/1999
	From: Lutz Jaenicke <jaenicke@emserv1.ee.TU-Berlin.DE>

	In article <82ks5i$5vc$1@news1.dti.ne.jp>, mtsat <mtsat@iris.dti.ne.jp>
	wrote:
	>Hello,
	>
	>I downloaded and compiled tcpdump3.4 a couple of week ago. I tried to use
	>it, but I can only see incoming data, never outgoing.
	>Someone (raj) explained me that a patch was missing, and that this patch
	>must me "patched" (poked) in order to see outbound data in promiscuous mode.
	>Many things to do .... So the question is : did someone has already this
	>"ready to use" PHNE_**** patch ?

	Two things:
	1. You do need a late "LAN products cumulative patch" (e.g. PHNE_18173
	for s700/10.20).
	2. You must use
	echo 'lanc_outbound_promisc_flag/W1' \| /usr/bin/adb -w /stand/vmunix /dev/kmem
	You can insert this e.g. into /sbin/init.d/lan

	Best regards,
	Lutz

	and

	http://groups.google.com/groups?selm=88cf4t%24p03%241%40web1.cup.hp.com

	which says:

	Newsgroups: comp.sys.hp.hpux
	Subject: Re: tcpdump only shows incoming packets
	Date: 02/15/2000
	From: Rick Jones <foo@bar.baz.invalid>

	Harald Skotnes <harald@cc.uit.no> wrote:
	> I am running HPUX 11.0 on a C200 hanging on a 100Mb switch. I have
	> compiled libpcap-0.4 an tcpdump-3.4 and it seems to work. But at a
	> closer look I only get to see the incoming packets not the
	> outgoing. I have tried tcpflow-0.12 which also uses libpcap and the
	> same thing happens. Could someone please give me a hint on how to
	> get this right?

	Search/Read the archives ?-)

	What you are seeing is expected, un-patched, behaviour for an HP-UX
	system. On 11.00, you need to install the latest lancommon/DLPI
	patches, and then the latest driver patch for the interface(s) in use.
	At that point, a miracle happens and you should start seeing outbound
	traffic.

	[That article also mentions the patch that appears below.]

	and

	http://groups.google.com/groups?selm=38AA973E.96BE7DF7%40cc.uit.no

	which says:

	Newsgroups: comp.sys.hp.hpux
	Subject: Re: tcpdump only shows incoming packets
	Date: 02/16/2000
	From: Harald Skotnes <harald@cc.uit.no>

	Rick Jones wrote:

	...

	> What you are seeing is expected, un-patched, behaviour for an HP-UX
	> system. On 11.00, you need to install the latest lancommon/DLPI
	> patches, and then the latest driver patch for the interface(s) in
	> use. At that point, a miracle happens and you should start seeing
	> outbound traffic.

	Thanks a lot. I have this problem on several machines running HPUX
	10.20 and 11.00. The machines where patched up before y2k so did not
	know what to think. Anyway I have now installed PHNE_19766,
	PHNE_19826, PHNE_20008, PHNE_20735 on the C200 and now I can see the
	outbound traffic too. Thanks again.

	(although those patches may not be the ones to install - there may be
	later patches).

	And another message to tcpdump-workers@tcpdump.org, from Rick Jones:

	Date: Mon, 29 Apr 2002 15:59:55 -0700
	From: Rick Jones
	To: tcpdump-workers@tcpdump.org
	Subject: Re: [tcpdump-workers] I Can't Capture the Outbound Traffic

	...

	http://itrc.hp.com/ would be one place to start in a search for the most
	up-to-date patches for DLPI and the lan driver(s) used on your system (I
	cannot guess because 9000/800 is too generic - one hs to use the "model"
	command these days and/or an ioscan command (see manpage) to guess what
	the drivers (btlan[3456], gelan, etc) might be involved in addition to
	DLPI.

	Another option is to upgrade to 11i as outbound promiscuous mode support
	is there in the base OS, no patches required.

	Another posting:

	http://groups.google.com/groups?selm=7d6gvn%24b3%241%40ocean.cup.hp.com

	indicates that you need to install the optional STREAMS product to do
	captures on HP-UX 9.x:

	Newsgroups: comp.sys.hp.hpux
	Subject: Re: tcpdump HP/UX 9.x
	Date: 03/22/1999
	From: Rick Jones <foo@bar.baz>

	Dave Barr (barr@cis.ohio-state.edu) wrote:
	: Has anyone ported tcpdump (or something similar) to HP/UX 9.x?

	I'm reasonably confident that any port of tcpdump to 9.X would require
	the (then optional) STREAMS product. This would bring DLPI, which is
	what one uses to access interfaces in promiscuous mode.

	I'm not sure that HP even sells the 9.X STREAMS product any longer,
	since HP-UX 9.X is off the pricelist (well, maybe 9.10 for the old 68K
	devices).

	Your best bet is to be up on 10.20 or better if that is at all
	possible. If your hardware is supported by it, I'd go with HP-UX 11.
	If you want to see the system's own outbound traffic, you'll never get
	that functionality on 9.X, but it might happen at some point for 10.20
	and 11.X.

	rick jones

	(as per other messages cited here, the ability to see the system's own
	outbound traffic did happen).

	Rick Jones reports that HP-UX 11i needs no patches for outbound
	promiscuous mode support.

	An additional note, from Jost Martin, for HP-UX 10.20:

	Q: How do I get ethereral on HPUX to capture the _outgoing_ packets
	of an interface
	A: You need to get PHNE_20892,PHNE_20725 and PHCO_10947 (or
	newer, this is as of 4.4.00) and its dependencies. Then you can
	enable the feature as descibed below:

	Patch Name: PHNE_20892
	Patch Description: s700 10.20 PCI 100Base-T cumulative patch
	To trace the outbound packets, please do the following
	to turn on a global promiscuous switch before running
	the promiscuous applications like snoop or tcpdump:

	adb -w /stand/vmunix /dev/mem
	lanc_outbound_promisc_flag/W 1
	(adb will echo the result showing that the flag has
	been changed)
	$quit
	(Thanks for this part to HP-support, Ratingen)

	The attached hack does this and some security-related stuff
	(thanks to hildeb@www.stahl.bau.tu-bs.de (Ralf Hildebrandt) who
	posted the security-part some time ago)

	<<hack_ip_stack>>

	(Don't switch IP-forwarding off, if you need it !)
	Install the hack as /sbin/init.d/hacl_ip_stack (adjust
	permissions !) and make a sequencing-symlink
	/sbin/rc2.d/S350hack_ip_stack pointing to this script.
	Now all this is done on every reboot.

	According to Rick Jones, the global promiscuous switch also has to be
	turned on for HP-UX 11.00, but not for 11i - and, in fact, the switch
	doesn't even exist on 11i.

	Here's the "hack_ip_stack" script:

	-----------------------------------Cut Here-------------------------------------
	#!/sbin/sh
	#
	# nettune: hack kernel parms for safety

	OKAY=0
	ERROR=-1

	# /usr/contrib/bin fuer nettune auf Pfad
	PATH=/sbin:/usr/sbin:/usr/bin:/usr/contrib/bin
	export PATH


	##########
	# main #
	##########

	case $1 in
	start_msg)
	print "Tune IP-Stack for security"
	exit $OKAY
	;;

	stop_msg)
	print "This action is not applicable"
	exit $OKAY
	;;

	stop)
	exit $OKAY
	;;

	start)
	;; # fall through

	*)
	print "USAGE: $0 {start_msg \| stop_msg \| start \| stop}" >&2
	exit $ERROR
	;;
	esac

	###########
	# start #
	###########

	#
	# tcp-Sequence-Numbers nicht mehr inkrementieren sondern random
	# Syn-Flood-Protection an
	# ip_forwarding aus
	# Source-Routing aus
	# Ausgehende Packets an ethereal/tcpdump etc.

	/usr/contrib/bin/nettune -s tcp_random_seq 2 \|\| exit $ERROR
	/usr/contrib/bin/nettune -s hp_syn_protect 1 \|\| exit $ERROR
	/usr/contrib/bin/nettune -s ip_forwarding 0 \|\| exit $ERROR
	echo 'ip_block_source_routed/W1' \| /usr/bin/adb -w /stand/vmunix /dev/kmem \|\| exit $ERROR
	echo 'lanc_outbound_promisc_flag/W 1' \| adb -w /stand/vmunix /dev/mem \|\| exit $ERROR

	exit $OKAY
	-----------------------------------Cut Here-------------------------------------