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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!nntp.coast.net!fu-berlin.de!news.belwue.de!news.uni-stuttgart.de!uniol!uni-erlangen.de!news.tu-chemnitz.de!irz401!orion.sax.de!uriah.heep!news From: j@uriah.heep.sax.de (J Wunsch) Newsgroups: comp.unix.bsd.freebsd.misc,comp.unix.bsd.misc Subject: Re: SLIP problems with FreeBSD 2.1 Date: 25 Jun 1996 21:50:33 GMT Organization: Private BSD site, Dresden Lines: 29 Message-ID: <4qpmv9$juf@uriah.heep.sax.de> References: <4qd72c$3m8@natasha.rmii.com> <4qk569$9hc@uriah.heep.sax.de> <4qnkc9$roc@natasha.rmii.com> Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) NNTP-Posting-Host: localhost.heep.sax.de Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Newsreader: knews 0.9.6 X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:22136 comp.unix.bsd.misc:1163 tjacobs@vaultbbs.com (Thomas R. Jacobs, Jr.) wrote: > No... I have seen this option for PPP but not SLIP or at least using > sliplogin. I ended up creating a new account for the user with the > problem. He tried his first account and it failed in the usual way. > He then tried his second account and it worked. Once. You are (ab)using a local ethernet's IP address for the remote side of the SLIP link? What happens then is the following: the connection breaks, but further packets arrive destined for the SLIP address that used to be there. Since there's no longer a host route for it, they default to the ethernet for some reason (they are in the local network address range, or the default route applies), so ARP resolution is attempted for them. Once the user re-establishes the connection, the unresolved ARP attempt prevents the host route to the SLIP peer from being established, leaving an essentially useless SLIP connection with not even a single route over it. This has been fixed since by wiping out existing unresolved ARP attempts whenever a new host route is about to be established. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)