CCIE Pursuit Blog

April 17, 2008

OSPFv3 Router-ID Uses IPv4 Address

Filed under: Cisco,Cisco Certification,IOS,IPv6,OSPF — cciepursuit @ 8:37 am
Tags: , , , , ,

Ivan Pepelnjak over at Cisco IOS Hint and Tricks (an absolute must-read site) has a nice post about the use of IPv4 addresses as the router ID in OSPFv3.  I touched on this in this Question of the Day.

This part of the post made me laugh out loud:

One of the obscure facts of IPv6 OSPF (OSPFv3) is that it uses a 32-bit router ID like OSPFv2. It’s a reasonable choice, I haven’t seen an OSPF network with more than a billion routers yet.

I love the “yet” qualifier.  🙂

—Read The Rest Here—


Blog at