Comments on: Why Disable Peer Neighbor Route http://henrydu.com/blog/networks/why-disable-peer-neighbor-route-170.html Think analog, act digital Mon, 27 Feb 2012 17:42:02 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: hengdu http://henrydu.com/blog/networks/why-disable-peer-neighbor-route-170.html/comment-page-1#comment-6297 hengdu Tue, 19 Oct 2010 17:56:28 +0000 http://henrydu.com/blog/?p=170#comment-6297 Interesting question. I guess we don't need peer neighbour route for IPv6 because when IPv6 is enabled, there is a link local address FE80::. We need to issue "no ipv6 nd ra suppress" command under interface Virtual-Template, so that router can advertise route to the neighbor. For IPv4, because when router handle layer 3 to layer 2 translation, it cannot refer to ARP (for Ethernet) or DLCI (for Frame Relay). So the best way let the router know the other end of PPP is to have a peer neighbour route in local route table. However, I have encountered another problem. Do you know why Virtual-Template interface cannot copy/clone ipv6 address to Virtual-Access interface? It works for IPv4 address. Interesting question. I guess we don’t need peer neighbour route for IPv6 because when IPv6 is enabled, there is a link local address FE80::. We need to issue “no ipv6 nd ra suppress” command under interface Virtual-Template, so that router can advertise route to the neighbor. For IPv4, because when router handle layer 3 to layer 2 translation, it cannot refer to ARP (for Ethernet) or DLCI (for Frame Relay). So the best way let the router know the other end of PPP is to have a peer neighbour route in local route table.

However, I have encountered another problem. Do you know why Virtual-Template interface cannot copy/clone ipv6 address to Virtual-Access interface? It works for IPv4 address.

]]> By: ferdinand Gutierez http://henrydu.com/blog/networks/why-disable-peer-neighbor-route-170.html/comment-page-1#comment-6295 ferdinand Gutierez Tue, 19 Oct 2010 01:39:37 +0000 http://henrydu.com/blog/?p=170#comment-6295 Can IPv6 do ppp peer neighbor-route also? I mean, what if the scenario is that the frame-relay interface is unnumbered (therefore have to use ppp virtual-template)? What can we do to make this work, because as far as i have tested, ppp peer neighbor-route doesn't work with ipv6. Thanks! Can IPv6 do ppp peer neighbor-route also?
I mean, what if the scenario is that the frame-relay interface is unnumbered (therefore have to use ppp virtual-template)?
What can we do to make this work, because as far as i have tested, ppp peer neighbor-route doesn’t work with ipv6.

Thanks!

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