From: Edwards, Andrew M (andrew.m.edwards@boeing.com)
Date: Fri May 05 2006 - 13:37:31 ART
George,
You have two things going on here.
First, mapping the link-local of the remote site FR is required for OSPF
to work on physical and PMP-subinterfaces.
Second, you have mismatched interface types for OSPF.
Regarding the first issue:
I find for myself it's a bit cumbersome to copy and paste the address
the router selects through the IPv6 link-local address selection
process. Additionally, the address selection process for link-local
addresses could result in a different IPv6 link-local address upon
reboot.
And for this reason, I strongly suggest statically setting the IPv6
link-local address on each interface because you need to statically map
the address to the DLCI on the physical interface already.
Regarding the second issue:
OSPFv2 and v3 for IPv6 are very similar for their operability across
NBMA networks. So, select which way you need to configure for OSPF to
function in the environment in question.
One way is to set R1 S1 to 'ipv6 ospf network point-to-point' just like
you have R2.
Another is to set R2 ipv6 ospf network type to NBMA just like R1 then
use 'ipv6 ospf neighbor <address>' command for unicast over NBMA just
like in OSPFv2.
Just depends upon the requirements. See example below,
And remember, when all else fails, debug ipv6 ospf adjacency
HTH,
Andy
CCIE #15334
R1 Config:
========
ipv6 unicast-routing
int s1
ipv6 address 2100:0108:122:15::1/64
ipv6 address fe80::1111 link-local
ipv6 enable
ipv6 ospf 4 area 0
ipv6 ospf neighbor 2100:0108:122:15::2
frame-relay map ipv6 2100:0108:122:15::2 112 broadcast
frame-relay map ipv6 fe80::2222 112 broadcast
R2 Config:
========
ipv6 unicast-routing
int s1
ipv6 enable
ipv6 address 2100:0108:122:15::2/64
ipv6 address fe80::2222 link-local
ipv6 ospf 2 area 0
frame-relay map ipv6 2100:0108:122:15::1 121 broadcast
frame-relay map ipv6 fe80::1111 121 broadcast
-----Original Message-----
From: KC [mailto:kanwal.chawla@gmail.com]
Sent: Thursday, May 04, 2006 11:36 PM
To: george stanza
Cc: Cisco certification
Subject: Re: Ipv6 question !!
Map to LInk Local addresses too. U can find it byt (( sh ipv6 int e0))
frame-relay map ipv6 (LINKOCAL) (Local DLCI)
On 5/4/06, george stanza <cert2006@gmail.com> wrote:
>
> R1 & R2 are connected over a frame-relay and i am trying to deploy
ipv6
> over
> the FR circuit and configure OSPF between them..i dont see ipv6 OSPF
> sessions coming up though..I believe i need to configure ipv6
link-local
> address but the question says that the ipv6 address should be
something
> like
> 2100:0108:122:15::1/64 & 2100:0108:122:15::2/64
>
> R1 Config:
> ========
> ipv6 unicast-routing
> int s1
> ipv6 address 2100:0108:122:15::1/64
> ipv6 enable
> ipv6 ospf 4 area 0
> frame-relay map ipv6 2100:0108:122:15::2 112 broadcast
>
> R2 Config:
> ========
> ipv6 unicast-routing
> int s1
> ipv6 enable
> ipv6 address 2100:0108:122:15::2/64
> ipv6 ospf network point-to-point
> ipv6 ospf 2 area 0
> frame-relay map ipv6 2100:0108:122:15::1 121 broadcast
>
>
This archive was generated by hypermail 2.1.4 : Thu Jun 01 2006 - 06:33:20 ART