On Wed, Apr 07, 2004 at 10:57:48AM -0700, Luigi Rizzo wrote: > Can someone explain why, in my arp table, i don't have an > entry for my local machine ? I just noticed this by chance, > on my 4.9 box at the office, and now again at home: > > > ifconfig > rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > inet 10.0.1.55 netmask 0xffffff00 broadcast 10.0.1.255 > inet 10.1.1.236 netmask 0xffffff00 broadcast 10.1.1.255 > ether 00:40:f4:34:b1:4b > media: Ethernet autoselect (100baseTX <full-duplex>) > status: active > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 > inet 127.0.0.1 netmask 0xff000000 > > arp -na > ? (10.0.1.52) at 00:02:2d:08:a3:3b on rl0 [ethernet] > ? (10.0.1.64) at 52:54:05:de:99:7c on rl0 [ethernet] > > > > the interface is actually up and moving traffic -- the box is talking > to 10.0.1.52. > The route magically reappears if i try to open a session to the > local box using the interface's address: > > > ssh 10.0.1.55 > ... bla bla bla ... > > arp -na > ? (10.0.1.52) at 00:02:2d:08:a3:3b on rl0 [ethernet] > ? (10.0.1.55) at 00:40:f4:34:b1:4b on rl0 permanent [ethernet] > ? (10.0.1.64) at 52:54:05:de:99:7c on rl0 [ethernet] > > and it's marked permanent, so it should not expire! Yet it > looks like they do anyways... > Here it doesn't disappear. Perhaps, you have some routing daemons running? Or when it's parent route gets removed, it's deleted too, for example, if you re-run ifconfig(8) on the interface. Please also note that if net.link.ether.inet.useloopback=1, the route is actually through lo0 (route -vn get -host 10.0.1.55).
Cheers, -- Ruslan Ermilov [EMAIL PROTECTED] FreeBSD committer
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