10-13-2007 03:01 AM - edited 03-05-2019 07:04 PM
Hi,
In my scnario, I have take bandwidth from upstream provider and I have to distribute the bandwidth through DSLAM (Broadband).
I have a Cisco 2821 router between Upstream provider and DSLAM, but the service provider has given me 126 Public IPs which include the IPs of gateway and other equipment at service provider side. I have to give public IPs to my customers from the same subnet.
How to configure same subnet of IPs to both the sides of router or is there any method we can configure both the interface of the router as a switch? which solves my purpose.
Regards,
MSK
10-14-2007 11:46 PM
Please check IRB feature and I hope this will help you.
10-15-2007 08:21 AM
You need to bridge the interfaces as opposed to routing across them. Use the following;
*****
bridge irb
interface FastEthernet0/0
no ip address
bridge-group 1
exit
interface Dialer0
no ip address
bridge-group 1
exit
interface BVI1
ip address
exit
bridge 1 protocol ieee
bridge 1 route ip
*****
You can then use the public IP addresses on the inside of your router.
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