RE: OSPF v3 for 2500's

From: Hough, Earl (Earl.Hough@sarcom.com)
Date: Wed Nov 08 2006 - 23:05:41 ART

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Gavin,

I've been running 12.2(15)T17 on 2501s for over a year now and it most
definitely supports OSPFv3. Also, as Brian illustrates, they spec'd
that out for their backbone routers and all of their IPv6 examples which
involve OSPFv3 work flawlessly using 2500s for the backbones.

That being said, don't assume that because I say that 12.2(15)T17 runs
it that you can jump to 12.3 mainline and it's supported there also like
it is with most 'T' code to 'Mainline' code...it doesn't. For some
reason they didn't include that functionality in the images for the 2500
platform when they compiled the code, presumably to keep the images down
to the 16MB flash size limitation.

BTW, you may have some difficulty in obtaining the IOS images for 12.2T
from CCO for that model as it appears that Cisco has done some
housekeeping and has removed all of the 12.2T images for that platform
from the site.

HTH...

Earl Hough
CCIE #16508

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Brian Dennis
Sent: Wednesday, November 08, 2006 8:39 PM
To: Gavin Lawson; ccielab@groupstudy.com
Subject: RE: OSPF v3 for 2500's

Works fine for me.

BB1-FRS(config)#int lo 0
BB1-FRS(config-if)#ipv6 ospf 1 area 0
BB1-FRS(config-if)#ipv6 add 2001:1::1/64
BB1-FRS(config-if)#ipv6 ospf 1 area 0
BB1-FRS(config-if)#ipv6 ospf network point-to-point
BB1-FRS(config-if)#

BB1-FRS(config)#ipv6 unicast-routing
BB1-FRS(config)#ipv6 router ospf 1
BB1-FRS(config-rtr)#?
  area OSPF area parameters
  auto-cost Calculate OSPF interface cost according to
bandwidth
  compatible OSPF compatibility list
  default Set a command to its defaults
  default-information Distribution of default information
  default-metric Set metric of redistributed routes
  discard-route Enable or disable discard-route installation
  distance Administrative distance
  distribute-list Filter networks in routing updates
  exit Exit from IPv6 routing protocol configuration
mode
  ignore Do not complain about specific event
  log-adjacency-changes Log changes in adjacency state
  maximum-paths Forward packets over multiple paths
  no Negate a command or set its defaults
  passive-interface Suppress routing updates on an interface
  redistribute Redistribute IPv6 prefixes from another routing
                         protocol
  router-id router-id for this OSPF process
  summary-prefix Configure IPv6 summary prefix
  timers Adjust routing timers

BB1-FRS(config-rtr)#

HTH,

Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com

Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)

-----Original Message-----
From: Gavin Lawson [mailto:GavinL@titan.net.au]
Sent: Wednesday, November 08, 2006 5:23 PM
To: Brian Dennis; ccielab@groupstudy.com
Subject: RE: OSPF v3 for 2500's

Thanks Brian

But can you confirm that after typing "ipv6 router ospf 1" you go can
enter OSPFv3 sub commands?
I can't

R2-2001#sho ver | in flash:
System image file is "flash:/c2500-is-l.123-18.bin"
R2-2001#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R2-2001(config)#ipv6 ?
  access-list Configure access lists
  cef Cisco Express Forwarding for IPv6
  hop-limit Configure hop count limit
  host Configure static hostnames
  icmp Configure ICMP parameters
  local Specify local options
  neighbor Neighbor
  prefix-list Build a prefix list
  route Configure static routes
  router Enable an IPV6 routing process
  source-route Process packets with source routing header options
  unicast-routing Enable unicast routing

R2-2001(config)#ipv6 router ospf 1
R2-2001(config)#
R2-2001(config)#ipv6 router rip 1
R2-2001(config-rtr)#

-----Original Message-----
From: Brian Dennis [mailto:bdennis@internetworkexpert.com]
Sent: Thursday, 9 November 2006 9:17 AM
To: Gavin Lawson; ccielab@groupstudy.com
Subject: RE: OSPF v3 for 2500's

BB1-FRS#sho ver | in flash:
System image file is "flash:c2500-is-l.122-15.T17.bin"
BB1-FRS#conf t
BB1-FRS(config)#ipv6 ?
  access-list Configure access lists
  cef Cisco Express Forwarding for IPv6
  hop-limit Configure hop count limit
  host Configure static hostnames
  icmp Configure ICMP parameters
  local Specify local options
  neighbor Neighbor
  ospf OSPF
  prefix-list Build a prefix list
  route Configure static routes
  router Enable an IPV6 routing process
  source-route Process packets with source routing header options
  unicast-routing Enable unicast routing

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Gavin Lawson
Sent: Wednesday, November 08, 2006 4:50 PM
To: ccielab@groupstudy.com
Subject: OSPF v3 for 2500's

Does anyone know of an IOS version for 2500's that run OSPFv3

Next message: Kal Han: "aaa command authorization using tacacs."
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Maybe in reply to: Gavin Lawson: "OSPF v3 for 2500's"
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