Re: IPv6 over IPIP tunnel

Hi Damien,

The PEs are all Juniper routers. CE1 is cisco router 3745,
CE2 is Juniper router M20. We are using link service PIC to
do the IPIP tunnel. 

The tunnel between CE1 and PE2 is already established and I
can ping CE1 using CE2 facing interface at PE2.

Cheers,
Benny

Damien Holloway <hollowayjuniper.net> wrote: What
type of routers are they? To do IPIP you need a
service/tunnel pic. 

Regards
 
Damien
 
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Juniper Networks Hong Kong
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-----Original Message-----
From: juniper-nsp-bouncespuck.nether.net 
To: juniper-nsppuck.nether.net 
Sent: Thu Jan 18 17:06:35 2007
Subject: [j-nsp] IPv6 over IPIP tunnel

Hi All,

Does anyone have experience with IPv6 over IPIP tunnel
between Cisco and Juniper? I have a IPv4 VPN network that
runs IPv6 over IPv4 like the topology below:

CE1 ----- PE1 -------MPLS ------- PE2 ------- CE2

The IPv6 over IPv4 tunnel is established between CE1 and PE2
using IP IP tunnel. From PE2 to CE2 we use native IPv6.
Packets from CE1 never reach CE2 but from CE1 we can ping to
PE2 interface that is facing CE2 and vice versa. 

If I sniff the ICMPv6 packet from CE2, it shows that CE2 is
already received the packet and replied them. When I checked
at interface tunnel on PE2 using firewall filter, the
packets is already transmitted to the tunnel interface but
never arrived at CE1.

Is this topology is applicable?

Any info is highly appreciated,

Thanks,
Benny

 
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