Local interface address pinged not via loopback?
infofarmer at mail.ru
Fri Apr 15 16:06:23 PDT 2005
satbsd# ifconfig tun0
tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1480
inet 220.127.116.11 --> 18.104.22.168 netmask 0xffffffff
Opened by PID 74104
satbsd# ping 22.214.171.124
PING 126.96.36.199 (188.8.131.52): 56 data bytes
--- 184.108.40.206 ping statistics ---
2 packets transmitted, 0 packets received, 100% packet loss
satbsd# tail -n1 /var/log/security
Apr 16 02:57:27 satbsd kernel: ipfw:
120 Deny ICMP:8.0 220.127.116.11 18.104.22.168 in via tun0
Why does the packet go through tun0,
not through lo0? I was sure most
IP stacks wouldn't even touch non-
loopback interfaces if the destination
address matched one of a local interface.
Did I miss something?
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