[c-nsp] IPV6

Mohacsi Janos mohacsi at niif.hu
Fri Dec 11 11:06:23 EST 2009




On Fri, 11 Dec 2009, Michael Robson wrote:

> It's been a while since I worked with IPV6 and I am now once again 
> plunging myself into this feckless world and was wondering if a couple 
> of holes had now been plugged. What is the accepted way in IPV6 land to 
> dish out IPV6 DNS server addresses (am I correct in saying that if you 
> make use of NDP, you would still have to manually configure DNS 
> servers)?

Use DHCPv6 or if your clients are supporting you can distibute DNS 
information via RAs. Support for adding DNS info to RA is not implemented 
on cisco routers yet.

> The other hole, as was, is the lack of IPV6 help address 
> functionality on Cisco routers (well 6500s at least): if I were to go 
> down the route of using DHCP for IPV6, how could I use a central server 
> without this helper functionality?

No DHCPv6 helper functionality, but DHCPv6 relay functionality, however I 
don't know the implementation status on various cisco boxes.


Regards,
 		Janos Mohacsi


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