Date: Fri, 23 Jun 2000 12:35:40 +0200 From: Martin Heinen <mheinen0@wiesbaden-online.de> To: "Crist J. Clark" <cristjc@earthlink.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Confused by Loopback Message-ID: <20000623123540.A44419@Moses.earth.sol> In-Reply-To: <20000621221927.B43715@pool0586.cvx20-bradley.dialup.e>; from cristjc@earthlink.net on Wed, Jun 21, 2000 at 10:19:27PM -0700 References: <20000621205221.A43715@pool0586.cvx20-bradley.dialup.e> <Pine.BSF.4.21.0006212107220.46613-100000@orthanc.dsl.gtei.net> <20000621221927.B43715@pool0586.cvx20-bradley.dialup.e>
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Crist J. Clark wrote: > The Clark Family wrote: > > > > Do you have an lo0 device in rc.conf? > > Sure do. That's the ifconfig(8) output below. > > > There was a bug (for a while) that caused lo0 to not be setup? > > Yeah, the classic symptom was people not being able to talk to their > portmappers. > > > People sometimes delete lo0 from their rc.conf. > > $ grep lo0 /etc/rc.conf > network_interfaces="lo0" > > > I'd expect a netstat -in to show up the loopback pseudo-device. > > Interesting. Yep, it is in there, > > $ netstat -in > Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll > lp0* 1500 <Link#1> 0 0 0 0 0 > lo0 16384 <Link#2> 126 0 126 0 0 > lo0 16384 127 127.0.0.1 126 0 126 0 0 > tun0 1500 <Link#3> 11500 0 11421 0 0 > tun0 1500 209.179.192.1 209.179.192.189 11500 0 11421 0 0 > > And that is a weird entry for tun0 there. But still not in the routing > table, Just guessing, but according to lo(4) the loopback interfcace should be the last one configured. lo0 should be Link#3 and tun0 should be Link#2. lo0 should be listed as the last interface in ifconfig -a. > And I can watch 'em go with a tcpdump(8) too. Oh, and I'll post my > favorite, > > $ ping 127.255.255.255 > PING 127.255.255.255 (127.255.255.255): 56 data bytes > 64 bytes from 207.217.2.37: icmp_seq=0 ttl=253 time=781.779 ms > 64 bytes from 207.217.2.69: icmp_seq=1 ttl=253 time=160.467 ms > 64 bytes from 207.217.2.101: icmp_seq=2 ttl=253 time=160.400 ms > 64 bytes from 207.217.2.101: icmp_seq=3 ttl=253 time=161.568 ms > 64 bytes from 207.217.2.69: icmp_seq=4 ttl=253 time=159.994 ms > 64 bytes from 207.217.2.69: icmp_seq=5 ttl=253 time=150.441 ms > 64 bytes from 207.217.2.15: icmp_seq=6 ttl=253 time=153.001 ms > ^C > --- 127.255.255.255 ping statistics --- > 8 packets transmitted, 7 packets received, 12% packet loss > round-trip min/avg/max/stddev = 150.441/246.807/781.779/218.437 ms really funny, I would expect a few DUPs ... -- use Perl; To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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