urpf-failed & ipv6

[Reinhard Haller]

Hi,

I recently discovered a strange behavior on my border router.
In the following ruleset:

block log all
block in log quick from urpf-failed to any
pass quick on $int_if inet6 proto udp from any to any port ripng
block drop on !$int_if inet6 proto udp from any to any port ripng

all occurrences of

fe80::<mac-address>%$int_if -> ff02::9

were blocked by the urpf-failed rule.

Any suggestuions why this happens?

Thanks Reinhard