PXE booting over IPv6

Trevor Warwick (twarwick) twarwick at cisco.com
Wed Nov 21 17:49:09 CET 2012

Many years ago, IPv6 was only included in the higher level IOS feature sets, not ipbase. 

We started to change this probably 4-5 years ago to ensure that all IOS images would include equivalent levels of IPv4 and IPv6 support for their included feature content, assuming such support had been implemented. I.e. there would be no extra license needed for the IPv6 capabilities.

As there was an engineering cost to do this, and also concerns about increasing the required memory size for basic images on small boxes, the decision was taken in some cases not to retro-fit this change to the older platforms. ISR-G1 and ISR-G2 being an obvious example as you have observed, where the G1s didn't get it.


-----Original Message-----
From: ipv6-ops-bounces+twarwick=cisco.com at lists.cluenet.de [mailto:ipv6-ops-bounces+twarwick=cisco.com at lists.cluenet.de] On Behalf Of Sander Steffann
Sent: 21 November 2012 13:02
To: Eric Vyncke (evyncke)
Cc: ipv6-ops at lists.cluenet.de forum; Nick Hilliard
Subject: Re: PXE booting over IPv6

Hi Éric,

> If you do not mind my chiming in... And, being one of those Tim's 
> technical people, I can be wrong but my reading of the cited C3560-X 
> data sheet http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6406/data_sheet_c78-584733.html (search for 'IP base') seems to indicate that with:
> - LAN base: plain layer-2 switch
> - IP base: routed access + RIP + RIPng + static routes
> - IP services: OSPFv3, OSPFv3, BGP, IS-IS, ...
> I hope that I am not wrong on this one ;-) Else, it will be fixed.

I don't know the C3560-X specific stuff, but I know i.e. that the IP base software for a c1841 does not include any IPv6 support at all. There you also need the AdvIP license. They fixed that for the c1941 because it has a different license model. But the older stuff (i.e. ISR1 series) sucks.

- Sander

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