Subject: gif interface question
To: None <>
From: None <>
List: tech-net
Date: 02/19/2004 15:23:26

I am using the following config:

up netmask 0xfffffff8 media autoselect
inet6 2001:638:902:1::1 prefixlen 64

up netmask 0xffffffff media autoselect
tcp4csum ip4csum udp4csum
inet6 2001:638:902:1::10 prefixlen 64

inet tunnel
inet6 2001:638:0:800::902:2 2001:638:0:800::902:1 prefixlen 128

default gw is

the system use the ex0 interface as default interface, means all packets
from the gif0 interface are using ex0 for output.

if I start 'tcpdump -i ex0 proto 41' you can see outgoing packets
(is ok)
if I start 'tcpdump -i gif0 proto 41' you can see incoming packets
(is ok)

if I start 'tcpdump -i gif0' you can ONLY see outgoing packets. I think
that is not right. as result it is not possible to use the gif tunnel.

is it allowed to use that config?

thank you for your efforts