Carp and isakmpd

[alter ego <drkfiber_(_at_)_retortion_(_dot_)_net>]

I recently created a clustered firewall with two lp100r servers with a 
4port nic in each. In order to protect a bunch of hosts behind the 
firewall I have about 100 carp interfaces, i am doing rdr to ip's hidden 
by the ip's assigned to the carp interfaces. I also have a VPN running off 
of the firewall. The VPN is the issue. Anytime I try to start isakmpd. I 
recieve the following. I do have a Listen-on=validip defined in the 
isakmpd.conf file. And it works on the old box just fine. The following is 
the error i recieve. Any Ideas?

125838.511986 Default virtual_bind_if: socket (2, SOCK_DGRAM, 0) failed: 
Too many open files
125838.512104 Default virtual_bind_if: socket (2, SOCK_DGRAM, 0) failed: 
Too many open files
125838.512208 Default virtual_bind_if: socket (2, SOCK_DGRAM, 0) failed: 
Too many open files
125838.512302 Default virtual_bind_if: socket (2, SOCK_DGRAM, 0) failed: 
Too many open files
125838.512396 Default virtual_bind_if: socket (2, SOCK_DGRAM, 0) failed: 
Too many open files
125838.512490 Default virtual_bind_if: socket (2, SOCK_DGRAM, 0) failed: 
Too many open files
125838.512584 Default virtual_init: could not bind the ISAKMP port(s) on 
all interfaces: Too many open files

Thanks.
,Jim