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isakmpd hogging cpu
We have seen some strange isakmpd behaviour on OpenBSD 3.4-stable.
Scenario is the following: on an OpenBSD VPN "client" connecting to an OpenBSD
VPN "server" we are using dynamic IP addresses (ADSL client). After sending
'teardown' and 'reconnect' messages to isakmpd.fifo via a shell script (executed
from ppp.linkdown and ppp.linkup) we see a _significant_ increase in CPU
utilization by the isakmpd daemon on the client side (i.e. the machine on which
't' and 'c' messages have been sent). This behaviour has also been reproduced on
a fixed-IP VPN client.
Has anyone else seen this behaviour?