FW: Curiosity in IPFW/Freebsd bridge. [more] 802.1q VLAN at fault?

Nickolay A. Kritsky nkritsky at star-sw.com
Mon Dec 20 10:32:14 PST 2004


Hello asegu,

This one should work OK. But do not forget to put parent interfaces in
up and promisc mode in your rc.conf, otherwise you will not see any
vlan-bridging. 

Sunday, December 19, 2004, 11:33:57 PM, asegu at borgtech.ca wrote:

abc> Ok, the whole discussion to date led to how VLAN traffic wasn't being
abc> registered by IPFW in my system. I think that it'll probably be too late
abc> for a code change to fix my problem, so I'm going to go the route of
abc> changing the network configuration.

abc> I've rebuilt to 4.10 and.. And I had no luck there (IPFW _really_ doesn't
abc> see the traffic now!). On the other hand, I've read about vlan pseudo-dev
abc> and goten myself access to the switch's configuration.

abc> So tomorrow evening I plan on changing the vlan id used to 3, and then in
abc> freebsd, use the following configuration(and I post this to the list to
abc> see if anybody knows that this is going to fail)

fxp1 -->> router (uses ID 2)
fxp0 -->> switch (uses ID 2, will switch to ID 3)
abc> ifconfig vlan1 vlan 3 vlandev fxp0
abc> ifconfig vlan0 vlan 2 vlandev fxp1

abc> sysctl net.link.ether.bridge_cfg=vlan1,vlan0
abc> sysctl net.link.ether.bridge_ipfw=1


abc> Does anybody think this will allow IPFW to see the packets? or that this
abc> will outright fail?


abc> Thank you everybody,
abc> Andrew



-- 
Best regards,
;  Nickolay A. Kritsky
; SysAdmin STAR Software LLC
; mailto:nkritsky at star-sw.com




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