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diff --git a/README.hpux b/README.hpux new file mode 100644 index 0000000..88c27f8 --- /dev/null +++ b/README.hpux @@ -0,0 +1,254 @@ +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------------------------------------- |