Packets with TTL=1 may be directed to local network (DHCP/DNS servers for example), so don't discard them
This is required by old versions of NetBSD which send DHCP DISCOVER packets with TTL=1
Signed-off-by: NHervé Poussineau <hpoussin@reactos.org>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>