FreeBSD + EAP/TLS + IPv6 != OK

Henrik Brix Andersen brix
Mon Feb 13 10:25:11 PST 2006

Hi Jouni,

On Wed, Dec 14, 2005 at 10:46:13AM +0100, Henrik Brix Andersen wrote:
> On Wed, Dec 07, 2005 at 10:52:59PM +0200, S?bastien Pierrel wrote:
> > Jouni Malinen wrote:
> > > Have you tried whether IPv4 broadcast packets are received correctly?
> > 
> > Yes, they are.
> Same here. IPv4 broadcasts gets through, but IPv6 broadcasts seems to
> be mangled somewhere along the way as seen on
> I really have no idea on where to go next in order to debug this
> thing... Any help will be greatly appreciated.

I have just confirmed that this problem also exists with the following

AP: linux- + hostap-driver-0.4.7 + hostapd-0.5.1 + WPA2-PSK
CCMP + radvd-0.9.1

STA: linux- + hostap-driver-0.4.7 + wpa_supplicant-0.5.1

Whenever radvd sends out an ICMP6 router advertisement the following
messages are printed in the STA syslog:

Feb 13 19:10:43 fangorn CCMP: decrypt failed: STA=00:02:6f:37:fc:68
Feb 13 19:10:43 fangorn wifi0: decryption failed (SA=00:02:6f:37:fc:68) res=-5

A tcpdump running on the AP shows the ICMP6 router advertisements just

So it would seem that this is related to either hostapd or
wpa_supplicant - not ipw2200/ieee80211 as first assumed

Hope someone will be able to reproduce this problem.

Henrik Brix Andersen <brix at>
Gentoo Metadistribution | Mobile computing herd
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