asked on

VLANS over an Access Port

We have 2 locations that are connecd via fibre. The carrier will only allow us to have an Access Port.. Single VLAN between the two.

We need to implement some sort of a solution that will allow us to pass VLAN's between the two locations. We push approx. 300Mbps over this connection.

Any ideas? We would want something simple.

bkepford

Sure you seperate them via layer 3 (IP address segments) and just route them between locations.
LOCATION A
vlan 1 = 192.168.11.0/24
vlan 2 = 192.168.12.0/24
vlan 3 (this is vlan between sites) = 192.168.10.0/24

LOCATION B

vlan 1 = 192.168.13.0/24
vlan 2 = 192.168.14.0/24
vlan 3 (this is vlan between sites) = 192.168.10.0/24

Another possiblitity would bridge between the two. Bridging is straight forward but can have some catches to it so here is a configuration guide from Cisco.
http://www.cisco.com/en/US/docs/ios/bridging/configuration/guide/br_transprnt_brdg_ps6350_TSD_Products_Configuration_Guide_Chapter.html#wp1004589

mdswireless

ASKER

i'm a little confused on the above.

I would need the following

LOCATION A
Vlan1 = 192.168.11.0/24
Vlan2 = 192.168.12.0/24

Vlan 3.. fine.. 192.168.10.0/24

LOCATION B
should be the same as LOCAITON A..
Vlan1 needs to remain as the .11.0
and Valn2 needs to remain the .12.0

bkepford

Then you need to bridge. I was just saying that you can either route inbetween or bridge in between. What devices do you have on either end If they are Cisco I will work up a sample config.

mdswireless

ASKER

right now i have 2 Cisco 3550... if these can do it. that would be great. we do have access to other gear if necessary.

bkepford

What image do you have on the switch? Not sure if bridging will work on 3550 not able to find it in any documentation. Now lets look at this problem. We need to send vlan tagged frames down an untagged access port. You could try tunneling. If the provider doesn't like that I am not sure
Switch(config)# interface FastEthernet0/11
Switch(config-if)# switchport mode dot1q-tunnel
Switch(config-if)# l2protocol-tunnel cdp
Switch(config-if)# l2protocol-tunnel stp
Switch(config-if)# l2protocol-tunnel vtp
Switch(config-if)# l2protocol-tunnel shutdown-threshold 1500
Switch(config-if)# l2protocol-tunnel drop-threshold 1000

mdswireless

ASKER

here is the issue

Location #1.. Uplink port is STATIC ACCESS

Location #2.. Uplink port is Dot1q Trunk

Has to be that way.

bkepford

I have been working on differnet tunneling examples on my test lab can you give me more information on the Service provider and Vlan numbers so that I can match up what you have?
You only have one port at each location?

mdswireless

ASKER

Ok
Location A
Interface gi0/1 is Static Access, VLAN 321
VLAN 321 has the ip address of 172.16.90.10
VLAN 9 has the ip address of 192.168.9.10
VLAN 10 has the ip address of 192.168.10.10

Location B
Interface gi0/1 is Trunk dot1q encap (allowed vlan 320, 321)
(this is the uplink between the two)
VLAN 321 has the ip address of 172.16.90.20
VLAN 9 has the ip address of 192.168.9.20
VLAN 10 has the ip address of 192.168.10.20

Does this help out?
(the VLAN 320 is the Network Gateway vlan.. and it doesn't have anything to do with the config here.. BUT, it is part of the port setup.. so that is why i included it.)

ASKER CERTIFIED SOLUTION

bkepford

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial