Weird firewall issues

[xulfer]

I've setup a site to site vpn.  For the most part it works okay, except I randomly find myself unable to ping certain hosts.  When I look at the firewall log it shows that some of the packets are being blocked.

@218 block drop in log quick on fxp0 inet from 10.0.0.0/8 to any label "block private networks from wan block 10/8"

I understand that this is the default wan block rule pertaining to local networks, but these packets should be coming over tun0 should they not?  I know i could probably fix this issue by disabling this feature, but I'd really rather not if it could be avoided.

Any insight would be appreciated.  Thanks!