tree f02645e5bfa2764133087453bc143911fc5efb19
parent db071d8b99bbc331d1b6c83874d4db3d4aaa4306
author Holger Hans Peter Freyther <zecke@selfish.org> 1303595714 +0200
committer Holger Hans Peter Freyther <zecke@selfish.org> 1303803227 +0200

nat: Introduce a block on the NAT to slowly get rid of BSCs

For restarting the NAT we can now block it, it will not accept
new connections and for existing connections it will attempt
to drop them over time. A blocked NAT will end up with no BSC
connections left and then can be safely restarted.