I think by default IRB bridges all protocols, include IP, that's what I get from CCO: http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/ibm_c /bcprt1/bctb.htm In this document there is a example named "Complex Integrated Routing and Bridging Example", it is very similar to my configuration, but it uses "bridge 1 route ip" in the end, I didn't use it and I still can route ip inside of the bridge group? Thanks, Jerry ------------------------------------------------------------------------ P routing is by default on when using IRB bridging. The only way to trun IP routing off is by the command you have done.! -----Original Message----- From: Jerry Seven [mailto:[EMAIL PROTECTED]] Sent: 18 June 2001 06:19 To: [EMAIL PROTECTED] Subject: Bridging: "no ip routing" and "no bridge xx route ip" [7:8917] Hi All, I have a question on "no bridge xx route ip" command, what I want is to disable IP routing inside the bridge group, but I found after I use this command, router still routes the IP packets. My configuration is as follows: .2 172.10.37.0/24 .1 .1 172.10.36.0/24 .2 R7 -------------------------------- R3 ---------------------------- R6 The configuration on R7 and R6 as usual, no bridge group is configured on them, on R3, I have(stripped): bridge irb ! interface GigabitEthernet1/0/0 ip address 172.10.37.1 255.255.255.0 no ip route-cache distributed no ip mroute-cache load-interval 30 negotiation auto bridge-group 1 ! interface FastEthernet2/0/0 ip address 172.10.36.1 255.255.255.0 no ip route-cache distributed no ip mroute-cache half-duplex bridge-group 1 ! bridge 1 protocol ieee But on R7 I still could ping 172.10.36.2, after I use "no ip routing", then it failed, so my question what is the relationship between "no bridge xx route ip" and "no ip routing", why after I run the first command, ip routing is still enabled in the bridge group? Thanks, Jerry _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=8981&t=8981 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
