From: Djerk Geurts (djerk.geurts@nl.easynet.net)
Date: Fri Aug 03 2007 - 00:00:53 ART
From
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/
ipv6_c/v6addres.htm#wp1050198
IPv6 Frame Relay PVC Mapping Configuration-Point-to-Multipoint
Interface: Example
In the following example, the same three nodes (Router A, Router B, and
Router C) from the previous example make up a fully meshed network and
each node is configured with two PVCs (which provide an individual
connection to each of the other two nodes). However, the two PVCs on
each node in the following example are configured on a single interface
(serial 3, serial 5, and serial 10, respectively), which makes each
interface a point-to-multipoint interface. Therefore, explicit mappings
are required between the link-local and global IPv6 addresses of each
interface on all three nodes and the DLCI (DLCI 17, 18, and 19) of the
PVC used to reach the addresses.
Router A Configuration
interface Serial 3
encapsulation frame-relay
ipv6 address 2001:0DB8:2222:1044::46/64
frame-relay map ipv6 FE80::E0:F727:E400:A 17 broadcast
frame-relay map ipv6 FE80::60:3E47:AC8:8 19 broadcast
frame-relay map ipv6 2001:0DB8:2222:1044::72 19
frame-relay map ipv6 2001:0DB8:2222:1044::73 17
**
Here they use the broadcast only on the link-local, when using routing
protocols shouls I even add the broadcast statement to the unicast
mapping? RIP works without the link-local mapping so what is the point
and why?
Any input welcome...
Djerk
> -----Original Message-----
> From: Djerk Geurts
> Sent: vrijdag 3 augustus 2007 4:46
> To: 'groupstudy'
> Subject: IPv6 routing on FR
>
> For RIPng, when defining the map statements for ipv6. Is it
> best to use link-local or global-unicast addresses?
>
> Once I added the broadcast statement to my unicast address FR
> maps the rip routing worked. But I see examples using the
> link local addressing in the FR map statements. What
> reasoning would there be to choose either one?
>
> Personally I'd prefer the unicast one as it's universal (if
> not using eui-64). When using eui-64 addressing it doesn't
> really matter that much, or does it?
>
> --
> Djerk
> www.djerk.nl
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