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VLAN Trunk

Posted: Mon Oct 29, 2012 11:16 am
by hq83
My ISP is doing VLAN trunk to 1 link. (4 vlan id)
1st vlan is for internet
2nd vlan is for iptv
3rd vlan is for ipphone
4th vlan is for management

they provide a router on signup and i plan to assign 2nd, 3rd, 4th vlan to the router.
how can I do it.?

I manage to assign the 1st VLAN as dhcp client and is able to get a WAN IP from the ISP DHCP server and able to access to net.
I use bridge to bridge 2nd, 3rd, 4th vlan with port 3 on RB1100AH
the 2nd router(the one provided by ISP) WAN port is connected to port 3 of RB1100AH.
but on the ISP router, I am unable to grab an IP from the 2nd, 3rd, 4th vlan.


I am using cisco SLM2008 before this doing the same setup and its working.

Re: VLAN Trunk

Posted: Mon Oct 29, 2012 10:05 pm
by samsung172
but. do you put all vlan in same bridge? then you put the vlan together. you need one bridge per vlan, and one vlan per interface want it to be tagged to. If you want it untagged, bridge vland and the port. Not the vlan on the port itself.

Re: VLAN Trunk

Posted: Tue Oct 30, 2012 1:58 am
by hq83
2nd, 3rd, 4th vlan should be tagged on port 3 going to the router.

Re: VLAN Trunk

Posted: Tue Oct 30, 2012 2:23 am
by hq83
is something like http://blog.bravi.org/?p=319

but I am forwarding vlan trunk(4 vlan) from port 1 to port 3 (3 vlan)

Re: VLAN Trunk

Posted: Tue Oct 30, 2012 3:06 am
by JorgeAmaral
From my point of view, you just need to create one bridge "br-trunk", add the two ethernet interfaces to it and your ISP router should work. To catch a vlan at your router, just add a vlan on top of the bridge.

Re: VLAN Trunk

Posted: Tue Oct 30, 2012 11:01 am
by hq83
I am able to catch the first vlan on rb1100ah
I also bridge the wan port with the ether 3 connected to the other router from isp. But it is unable to get ip from those vlans

Re: VLAN Trunk

Posted: Tue Oct 30, 2012 11:05 am
by hq83
From what I read it seem like the vlan has been un tagged before being forward out on the other lan port.