FreeBSD + RACOON error

[Olegs Sorokins]

Dear all,

I've installed FreeBSD + racoon on both firm firewalls to create IPSec protective VPN tunnels between external offices.
During the month, everything has been working fine, but the previouse week the error on one of the firewalls occured.:
swap_pager: out of swap space 
swap_pager_getswapspace: failed 
/ kernel: pid 148 (racoon), vid 0 , was killed: out of swap space

and the only one way to continue to work is just restart services. Please, help. Really urgent and important thing.

Thanks in advance,
Oleg