VLAN switching on freebsd
jmg at funkthat.com
Fri May 2 18:34:29 UTC 2014
zkan KIRIK wrote this message on Fri, May 02, 2014 at 21:04 +0300:
> i need to create a virtual interface that forwards only defined vlan tags.
> Lets talk on a sample scenario :
> Assume that VLAN 10, 20, 30, 40 tagged on switch connected to em0 interface.
> create ngeth0 and ngeth1. ( i dont need netgraph interface, it can be a any
> virtual interface tap .. etc. )
> i want to see only VLAN 10, 20 tagged on ngeth0
> and VLAN 10, 30, 40 tagged on ngeth1
> I tried many ways but no success.
> Can you suggest a way to do this?
I'm not familar w/ netgraph, but it looks like you might be able to
do something simlar w/ ng_vlan and ng_bridge? Though bridge could be
replaced w/ one2many, or hub depending upon requirements... Also, is
this purely for snooping traffic? or do you want to be able to pass
traffic both ways?
/ / \ \
10 20 30 40
| | | |
| ng_bridge | |
\ / \ | |
Not sure if this is exactly what you want, but I think it would...
Though I don't know if you tried this, since you didn't describe
anything you tried...
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