| Firewalling with OpenBSD's PF packet filter: EuroBSDCon 2007, København, September 12th 2007 | ||
|---|---|---|
| Prev | Next | |
Negotiating critical communication parameters
Sending progressively larger packets with "Do not fragment" flag set
Expecting ICMP reply "type 3, code 4"
-> "destination unreachable", "fragmentation needed, Do not fragment flag set"