DHCP snooping for IPV6?

[kevin_miller]

Hi all.  If I implement DHCP snooping on a L2 switch (Catalyst 2950 for example), will this block an IPV6 DHCP server connected to a non-trusted port?

[Reza Sharifi]

No,  you have to configure the device for IPv6 snooping

Here is more info on configuring IPv6 snooping

http://www.cisco.com/en/US/docs/routers/7600/ios/12.2SR/configuration/guide/snoopmld.html

[kevin_miller]

Hi Reza.  Are you saying that MLDv2 snooping blocks IPV6 router advertisements (RAs) that are a response to the router solicitation multicast request?  The text of the link seems to imply that the feature blocks IPv6 multicast to those ports that want to receive it - not blocking the erroneous RA sender like I would expect DHCP snooping would do.  Have you implemented this feature and tested it?