Messages in this thread | | | Date | Fri, 14 May 1999 16:51:45 -0700 | From | David <> | Subject | [Fwd: linux-ipsec: ppp] How unreliable is tcpdump? |
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Richard Guy Briggs wrote:
> -----BEGIN PGP SIGNED MESSAGE----- > > > Is there some known problem with freeswan 1.00 and ppp? I'm finding that > > most of my packets (but not all) exit the ppp0 interface truncated with > > very odd ip's. > > Tcpdump under Linux is not reliable for monitoring the packets originating or > terminating at the machine on which it is running. Run it on another > machine somewhere in between, if possible, or run a copy on both ends > and throw out all the packets in one direction on each (I don't > remember which direction gets false readings...). This may be your > problem in diagnosing. There have been problems with PPP which we > definitely want to fix, but are a little overloaded at the moment. > > > tcpdump > > > > 10:14:39.675021 truncated-ip - 1964 bytes missing!132.205.8.0 > 69.0.0.84: > > (frag > > 2510:2036@48192+) [tos 0x47] [ttl 0] (ipip) > > 10:14:39.675021 truncated-ip - 31980 bytes > > missing!h135-181-152-199.outland.luce > > nt.com > 199.140.175.177: (frag 39423:32048@928+) [tos 0xc3] > > 10:14:40.015021 modem-98.promethium.dialup.pol.co.uk.1025 > > > world1.bellatlantic. > > net.domain: 32576 (45) > > > > > > I'm coming from modem-98.promethium.dialup.pol.co.uk. > > > > Does this make sense to anyone? > > > > > > > > > > James Milne > > UNIX SysAdmin > > (403)750-4291 > > > > slainte mhath, RGB > - -- > Richard Guy Briggs -- 1999 Green Party candidate for Ottawa-Vanier > <http://www.conscoop.ottawa.on.ca/rgb/election.html> Vote Green! > > Prevent Internet Wiretapping! -- FreeS/WAN:<http://www.xs4all.nl/~freeswan> > > -----BEGIN PGP SIGNATURE----- > Version: 2.6.3i > Charset: noconv > > iQCVAwUBNzyfpt+sBuIhFagtAQHITQQAreGttP/aiIv7q03n2vplQDcGP2Na+wD7 > KhYPtZZrEgeCiVcaoIN2HxWcOykYvTgkZj/wzP9oPSodORYX8iP0zqTuKMaaa2dD > Ajls5VUhJeNv/7ogr5f3zPZIzGfUzPhsKsz88FZP8ZFXUaU7yighWx58P8bXx7uJ > p3YuQiPieUU= > =XiSv > -----END PGP SIGNATURE-----
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