Stale IPv6 Neighbor unreachable – Resolve with IPv6 "ARP" equivalent

Posted by: admin  :  Category: Networking

Right before “mv’ing /dev/myself to /var/home” I came along another odd thing on my border router.

An IPv6 peer was unreachable, i.e. did not respond to ICMP ping, as such the BGP session was down as well.
I gave it another indepth look as it happened to be one of our IPv6 upstream peers and had some sort of importance as such.
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BGP configuration weirdness on Foundry/Brocade

Posted by: admin  :  Category: Networking

If you’re all too familiar with Cisco, then you will – as well as I do – struggle accross some weirdnesses on the Foundry/Brocade routers every now and then.

Not too long ago I fought around with a BGP issue on the XMR 4000.
My problem was that the XMR would announce just about any IPv6 prefix to all BGP peers, despite the fact that I had a configuration in place, which should effectifely only announce my own prefixes.
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