For a start it appears you do not have a common subnet on the link between the two devices so it'll complain about that.
Make the Router A interface 10.1.1.1/255.255.255.252 and Router B 10.1.1.2/255.255.255.252 then add router ospf 1 network 10.1.1.0 0.0.0.3 area 0 Every OSPF network must have a backbone or area 0. The 'router ospf x' where x is simply a number you assign to identify that routers OSPF process ID, it can even be different on different routers! The shared areas though MUST match between routers. Really I should just say RTFM but I won't ;o) http://www.cisco.com/warp/public/104/1.html Darren Ward (PGradCS, CCIE #8245, SCSA, CCNP, CCDP, MCP) On Wed, 10 Jul 2002, John Brandis wrote: > I have the following error whilst playing with OSPF > > 12:52:40: %OSPF-4-ERRRCV: Received invalid packet: mismatch area ID, from > backbone area must be virtual-link but not found from 10.1.4.20, Ethernet0 > > I have 2 routers, Router A and Router B, back to back. Able to get the 2 > connected, however when I > (Router A) > router ospf 20 > network 10.1.10.0 0.0.0.0 area 20 > > (RouterB) > router ospf 20 > network 192.168.1.0 0.0.0.0 area 20 > > Should I define different areas ? > > Thanks for your time > > John > > > ********************************************************************** > > visit http://www.solution6.com > visit http://www.eccountancy.com - everything for accountants. > > UK Customers - http://www.solution6.co.uk > > ********************************************************************* > This email message (and attachments) may contain information that is > confidential to Solution 6. If you are not the intended recipient you cannot > use, distribute or copy the message or attachments. In such a case, please > notify the sender by return email immediately and erase all copies of the > message and attachments. Opinions, conclusions and other information in > this message and attachments that do not relate to the official business of > Solution 6 are neither given nor endorsed by it. > ********************************************************************* Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=48470&t=48463 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
