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IPv6 on ASA

Posted on 2014-11-26
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Last Modified: 2014-12-06
I have 2 virtual context on my ASA sharing an interface to communicate with each other.
Context named Test and VPN

Problem is I cannot ping from TEST to VPN context via ipv6.
I don’t have any problems with ping the interface with ipv4.
Please see attached my configs.

I tried this setup on 2 different ASA’s one ASA with code 9 and one with code 9.2.
Only problem is connectivity via ipv6.
What did i do wrong with ipv6 configs.
Configs.log
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Question by:ciscosupp
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Expert Comment

by:eeRoot
ID: 40469749
Can you post the relevant sections of the config?  Is the ASA configured with any IP's and rules for allowing ICMP traffic?
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Author Comment

by:ciscosupp
ID: 40470029
Configs are attached????
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LVL 32

Expert Comment

by:harbor235
ID: 40473888
Does your policy allow the IPV6 traffic flows to the ASA?

harbor235 ;}
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Accepted Solution

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ciscosupp earned 0 total points
ID: 40474143
The IPv6 neighbor mechanism relies on multicasting and multicasting (ipv4 & ipv6) is not supported on shared interfaces.
Two ways to work around it:
- Define static neighbors. Works fine if you only have 2-3 contexts. Too much work if you need more contexts. You need to setup a full mesh of routes and static neighbors.
- Have some other device in the shared network do routing (router on a stick) for IPv6.
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Author Closing Comment

by:ciscosupp
ID: 40484413
I found the solution.
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