> I have OpenBSD -current from end of October 98 and kernel from 9.12.1998 > running on sparc 20. I was wondering how it is possible for tcpdump to > still see icmp messages if they're blocked: tcpdump uses bpf, which sees packets before everything else. > Which version of ipfilter is in latest sources of OpenBSD? According to plus.html: <li>ipf 3.2.10.