Claudio Jeker : 10 years ago
...
trunk(4) works only over ethernet devices (more precisely IEEE802 based
interfaces). This includes wireless devices but neither of gif, gre or
pppoe. tun(4) in layer 2 mode works while a "normal" tun(4) will not.
Looks like it s broken on layer 2 tun.
# uname -a
OpenBSD current 5.9 GENERIC.MP#2004 amd64
[0]-[current]-[~]
# ifconfig tun1
tun1: flags=9051<UP,POINTOPOINT,RUNNING,LINK0,MULTICAST> mtu 1500
index 81 priority 0
groups: tun
status: active
[0]-[current]-[~]
# ifconfig trunk0 trunkport em7
ifconfig: SIOCSTRUNKPORT: Invalid argument
[1]-[current]-[~]
# ifconfig trunk0 trunkport tun1
ifconfig: SIOCSTRUNKPORT: Protocol not supported
[1]-[current]-[~]
# ifconfig em1 up
[0]-[current]-[~]
# ifconfig trunk0 trunkport em1
[0]-[current]-[~]
#
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