Month: February 2011

Do we now need a security IOS license simply to provide OSPF authentication for IPv6? – UPDATED

I went a bit fast when I posted this write-up: http://mellowd.co.uk/ccie/?p=1369 I think it’s better to have a longer discussion about how authentication OSPFv3 SHOULD be set up to begin with, then show how it doesn’t work without a security license. Let’s begin with regular IPv4. I’ve got 2 1841’s running and this is the…

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Do we now need a security IOS license simply to provide OSPF authentication for IPv6?

While going through the CCIE 4th edition cert guide, I’ve come across something that is potentially a very big problem. Currently if you want to authenticate OSPF and EIGRP neighbours you can do so via plain-text or MD5 passwords. With IPv6 you need to use OSPFv3 and EIGRP. Here’s where it get’s bad. OSPFv3 does…

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