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IPv6 – notes
Addresses are 128 bits long Separated with colons every 16 bits Address separated in prefix and interface id, most common is /64 Leading zeroes can be omitted from address and double colon may be used...
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IPv6 over frame relay
This post will look at IPv6 over frame-relay and describe some of the small things that differ compared to IPv4 and some gotchas. We start out with the same topology as in my previous frame-relay post....
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Frame-relay IPv6 speed drill
Going for the lab we need both speed and skills. I made a simple IPv6 frame-relay lab that should test your speed. Time yourself and post your time to configure in the comments. Just by looking at the...
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IPv6 operation and best practices – documents to read
Unfortunately I don’t get to do much v6 at my job yet but I still like to stay updated on what is happening. Do you run any v6 in your network? If so, do you run it native or tunneled or something like...
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A Quick Look at NAT64 and NAT46
Introduction In the best of worlds we would all be using native IPv6 now, or at least dual stack. That is not the case however and IPv4 will be around for a long time yet. During that time that both...
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Service Provider IPv6 Deployment
These are my study notes regarding IPv6 deployment in SP networks in preparation for the CCDE exam. Drivers for implementing IPv6 External drivers SP customers that need access to IPv6 resources SP...
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IPv6 Multicast
These are my notes for IPv6 multicast for the CCDE exam. Overview Prefix FF::/8 reserved for multicast Multicast Listener Discovery (MLD) replaces IGMP MLD is part of ICMPv6 MLDv1 equivalent to IGMPv2...
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Busting Myths – IPv6 Link Local Next Hop into BGP
In some publications it is mentioned that a link local next-hop can’t be used when redistributing routes into BGP because routers receiving the route will not know what to do with the next-hop. That is...
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Catalyst 3750 IPv6 ACL Limitations
I recently ran into some limitations of IPv6 ACLs on the Catalyst 3750 platform. I had developed an ACL to protect from receiving traffic from unwanted address ranges such as ::, ::1, ::FFFF:0:0/96....
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I was looking for information on running IPv6 in VRF on the Catalyst 3k platform and there wasn’t much information available. I tried running IPv6 in VRF on Catalyst 3560 with correct SDM profile but...
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