A general workaround would be a p-p gre tunnel over the ASA (ks to any
router on the other side on asa), and enbale multicast routing on the p-p
tunnel and the path upto the GMs.
Regards

On Tue, Mar 9, 2010 at 2:03 PM, Michael Davis
<[email protected]>wrote:

>  Hi – Yes it took a while.  It has stopped working.  When I issued the
> “clear crypto isakmp” command it stopped working.  So now I can try to work
> out how to get the multicast through the ASA.
>
>
>
> *From:* Badar Farooq [mailto:[email protected]]
> *Sent:* Tuesday, March 09, 2010 9:56 PM
> *To:* Michael Davis
> *Cc:* [email protected]
> *Subject:* Re: [OSL | CCIE_Security] GETVPN and multicast through ASA
>
>
>
> Well, the registration would work fine. Reduce the rekey restransmit time
> to minimum and run debugs on the GMs to see if you are receiving rekeys once
> they are retransmitted. ( alternatively, you can change the ACL to force a
> rekey). But remember, clearing GDOI on GMs or any change on GMs will cause
> re-registration which will work fine. (Its unicast and in opposite
> direction)
>
> With ASA in between multicast rekey should NOT work. But lets first make
> sure its not working and then we can implement the workarounds later.
>
>  On Tue, Mar 9, 2010 at 1:49 PM, Michael Davis <
> [email protected]> wrote:
>
> Hi Everyone – I configured a GETVPN using 3 1760’s running 12.4 (15)T.  I
> put an ASA 5510 between the KS and the 2 GM’s.  I set the keying as unicast
> which worked fine.  I changed the keying to multicast and it is still
> working??  Shouldn’t I have to do something on the ASA to pass multicast
> traffic for GETVPN.  I vaguely remember Tyson doing this in the bootcamp to
> make it work so I am a bit confused.
>
> Can anyone please clarify what we need to do if a getvpn using multicast
> keys traverses an ASA or another router?
>
> Thanks
>
> Michael
>
>
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>
>
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