Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Configuring Cisco DSL Router 857 in Bridge Mode for ASA

I've a Cisco DSL router 857 and a Cisco ASA placed behind it. I want to configure the Cisco DSL router in Bridge mode so that the Cisco ASA gets the Public IP adres.

I hope that someone can help me with this issue. An example with code will be highly appreciated.

Thanks.

4 REPLIES
Hall of Fame Super Gold

Re: Configuring Cisco DSL Router 857 in Bridge Mode for ASA

no ip routing

interface atm 0

no ip address

interface atm 0.1 point-to-point

pvc 8/35

bridge-group 1

interface vlan1

no ip address

bridge-group 1

bridge 1 protocol ieee

Note: this won't work if ISP is using "routed 1483" or "PPPoA". Will work with "bridged 1483" or "PPPoE".

Hope this helps, please rate post if it does!

New Member

Re: Configuring Cisco DSL Router 857 in Bridge Mode for ASA

I have a very similar situation but my ISP uses PPPoA.... any ideas what would the config be for that situation please?

Thanks

New Member

Re: Configuring Cisco DSL Router 857 in Bridge Mode for ASA

dear p.bevilacqua,

My connection is PPPoA :-(

Thanks

Hall of Fame Super Gold

Re: Configuring Cisco DSL Router 857 in Bridge Mode for ASA

Sorry, PPPoA is not bridgeable.

You must then have the public IP in the router.

Actually an 857 does most of the things an ASA does. The most noticeable lack in the 850 series, is QoS.

762
Views
0
Helpful
4
Replies