hey folks,
my users are noticing intermittent lag, and/or network drop connecting 
to a m0n0wall 1.11 vpn box.  I have seven active vpn connections to this 
box (neoware 4000P - nsc geode processor, 128mb ram, 98mb HDD, with one 
onboard nic, and one PCI nic) plus it control's dhcp and the firewall 
for the main location.  I'm wondering if the ipsec is taking its toll on 
the processor causing the lag / drop.  I'm considering a PIII 866 
w/512mb ram to replace the neoware box soon. 

anyone have any sage advice?  things to check, things to turn off/on on 
the current box. 

thanks in advance.

-Cameron