Return to BSD News archive
Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!news.mel.connect.com.au!munnari.OZ.AU!news.ecn.uoknor.edu!news.cis.okstate.edu!news.ksu.ksu.edu!lazrus.cca.rockwell.com!newssvr.cacd.rockwell.com!newsrelay.iastate.edu!newsxfer.itd.umich.edu!news.mathworks.com!fu-berlin.de!zib-berlin.de!news.tu-chemnitz.de!irz401!uriah.heep!news From: j@uriah.heep.sax.de (J Wunsch) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: Route Table Date: 15 Mar 1996 22:20:14 GMT Organization: Private BSD site, Dresden Lines: 26 Message-ID: <4icqeu$187@uriah.heep.sax.de> References: <DoA2y4.ELx.E.fourthgen@fourthgen.fourthgen.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 0.9.3 tomg@fourthgen.fourthgen.com (Tom Greenwalt) writes: > Occasionally when a user connecting via SLIP or PPP hangs up their route > is left in the routing table like this (insert favorite IP address for x's): > > Internet: > Destination Gateway Flags Refs Use Netif Expire > xxx.xxx.xxx.xxx link#2 UHLW 1 12 > > Does anyone know why a broken route is left behind like this sometimes? I suppose you're using proxyARP for your SLIP/PPP connections? So after the connection broke, the next packet arriving destined for the IP address that just disappeared defaults to the Ethernet interface, and will be resolved through regular ARP. The line you've been quoting is a sign for this half-established route. (The link#2 would change to the Ethernet address once ARP was complete.) That's the price of the proxyARP hack. Avoid it if you can (e.g. by allocating a different subnet for the SLIP/PPP connections). -- 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. ;-)