kern/90382: WPA breaks IPv6 multicast

Teemu Rinta-aho teemu at
Wed Dec 14 01:30:09 PST 2005

>Number:         90382
>Category:       kern
>Synopsis:       WPA breaks IPv6 multicast
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Dec 14 09:30:02 GMT 2005
>Originator:     Teemu Rinta-aho
>Release:        6.0-RELEASE
Thu Dec  8 17:21:44 EET 2005
root at  i386
Using WPA encryption breaks IPv6 multicast. Without any encryption the node receives e.g. IPv6 Router Advertisements correctly, but when starting up wpa_supplicant with WPA/WPA2 (i.e. installing encryption keys into ccmp and tkip modules), the received IPv6 Router Advertisements are complete nonsense when looking with tcpdump. Unicast IPv6 and IPv4 continue working. Maybe there's something wrong in the decryption for multicast IPv6?

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