From: Pavel Bykov (slidersv@gmail.com)
Date: Fri Feb 06 2009 - 06:50:03 ARST
Logically, there might be a problem with multicast helloes due to how 6to4
works.
1. It's multicast, therefore there will be problem of replicating packets to
destinations, since 6to4 is multipoint
2. The TTL is 1. As all addresses from 224.0.0.x range, OSPF's multicast
address has TTL of 1 as well. This does not have to be a problem, but it
could be due to how packets are going to be encapsulated and traveling
inside the system
Id's say manual "neighbor" statements are a much safer bet, with TTL of 2
and unicast the theoretical problems go away.
On Thu, Feb 5, 2009 at 10:03 PM, Roger RPF <rpf@bluemail.ch> wrote:
> What exactly is the problem? Can you be more specific.
>
> Well, here just an example how to configure it on one router:
>
> int tunnel 0
> tunnel source lo0
> ipv6 address 2002:aabb:ccdd::1/64
> tunnel mode ipv6ip 6 to 4
> ipv6 ospf 1 area 0
>
> ipv6 route 2002::/16 tunnel 0
>
> -->> Note, the aa bb part above is the converted (into hex) ipv4 address of
> the lo0
>
>
> int lo0
> ip address aa.bb.cc.dd 255.255.255.255
> ipv6 ena
> ipv6 ospf 1 area 0
>
> If you do this concept on a few other routers you should be able to ping
> the
> addresses...
>
> Test it out..hopefully I havent done a typo in the config...smile...
>
> regards
>
> Roger
>
> -----Urspr|ngliche Nachricht-----
> Von: nobody@groupstudy.com [mailto:nobody@groupstudy.com] Im Auftrag von S
> Malik
> Gesendet: Donnerstag, 5. Februar 2009 19:06
> An: Cisco certification
> Betreff: IPV6: OSPF Routing over 6to4 Tunnel
>
> Can we do ospfv3 routing over 6to4 tunnel?
>
> I would appreciate if some one can forward working configuration please.
>
>
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-- Pavel Bykov ---------------- Don't forget to help stopping the braindumps, use of which reduces value of your certifications. Sign the petition at http://www.stopbraindumps.com/Blogs and organic groups at http://www.ccie.net
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