Hello everybody, I have written an iptables script to protect a machine/LAN and I'd like to clarify an issue about RELATED ICMP packets of type 3 (actually, mostly 3/1). As far as I understand, it is safe to ACCEPT incoming packets of this sort. Is it safe to allow _outgoing_ packets of this kind? Can an attacker make my machine generate such packets in order to obtain information about it? (All new incoming packets are just DROPped.) TIA, Mikhail
