03-06-2007 03:11 AM - edited 03-05-2019 02:43 PM
Hello all,
I have the following situation. I have 2 locations connected as described in the attached image, via a 2Mbps leased line. Both routers are connected each to a switch (non-cisco at the moment) and I have a server attached to those switches, one in each location.
My problem is that the servers have to be in the same vlan. How would I go about configuring that ? How do I transport VLAN information across the leased line ? Any help is appreciated.
Thanks,
Stefan
Solved! Go to Solution.
03-07-2007 10:14 AM
Please follow the link that I pasted above. There is not virtual BVI interface on your routers. Please configure an BVI interface on both the routers.
-amit singh
03-06-2007 05:59 AM
You Can achieve it using IRB.Please see the document below for more info on it.
http://cio.cisco.com/univercd/cc/td/doc/product/l3sw/4840g/ios_12/1_5/config/4840br.htm
HTH,Please rate if it does.
-amit singh
03-06-2007 06:47 AM
Thank you for the link. So basically I create a BVI interface and assign the Serial0/0 to the bridge group. Then create dot1q ethernet subinterfaces for the trunking to the switches. Does that make sense? Could you possibly post a sample configuration ?
Thanks,
Stefan
03-07-2007 03:32 AM
Some follow up on this issue. On both routers, I put the ethernet and serial interfaces in the same bridge group and I believe the bridging works fine now. If I do debugging on STP, I see topologies changes, events and so on. However, nothing else works. ARP requests wont get through for example. I can't reach IPs from the other side also. Here's the config I have now:
Router 1
--------
bridge irb
interface FastEthernet0/0
ip address 172.16.3.34 255.255.255.0
bridge-group 2
interface Serial0/0
bandwidth 2048
ip address 192.168.10.5 255.255.255.0
bridge-group 2
bridge 2 protocol ieee
bridge 2 route ip
Router 2
--------
bridge irb
interface Ethernet0/0
ip address 172.31.3.250 255.255.255.0
bridge-group 2
interface Serial0/0
bandwidth 2048
ip address 192.168.10.6 255.255.255.0
bridge-group 2
bridge 2 protocol ieee
bridge 2 route ip
router1#show bridge
Total of 300 station blocks, 298 free
Codes: P - permanent, S - self
Bridge Group 2:
Address Action Interface Age RX count TX count
0000.d1ef.4a44 forward FastEthernet0/0 0 253 0
0009.3d13.5c77 forward FastEthernet0/0 0 661 0
router1#show bridge group
Bridge Group 2 is running the IEEE compatible Spanning Tree protocol
Port 4 (FastEthernet0/0) of bridge group 2 is forwarding
Port 6 (Serial0/0) of bridge group 2 is forwarding
router2#show bridge
Total of 300 station blocks, 299 free
Codes: P - permanent, S - self
Bridge Group 2:
Address Action Interface Age RX count TX count
0030.0528.002a forward Ethernet0/0 0 499 0
router2#show bridge group
Bridge Group 2 is running the IEEE compatible Spanning Tree protocol
Port 2 (Ethernet0/0) of bridge group 2 is forwarding
Port 6 (Serial0/0) of bridge group 2 is forwarding
Any ideas ?
03-07-2007 10:14 AM
Please follow the link that I pasted above. There is not virtual BVI interface on your routers. Please configure an BVI interface on both the routers.
-amit singh
03-12-2007 07:33 AM
Just wanted to follow up on this. The problem was finally solved. Here is the config that i have now on both routers:
bridge irb
interface Ethernet0/0
no ip address
half-duplex
bridge-group 1
!
interface Serial0/0
bandwidth 2048
bridge-group 1
interface BVI1
ip address 172.16.3.40 255.255.255.0
bridge 1 protocol ieee
bridge 1 route ip
Thanks Asingh2.
Regards,
Stefan
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