A problem with too many network interfaces

[Eric W.Bates]

I'm trying to build a router/filter on FreeBSD 4.8 with 4 real NIC and
32 vlan interfaces.

Starting dhcpd generates an error after 15 interfaces:
"[interface] not found"

My C skills are lacking so while I'm grovelling thru dhcpd source to
find the problem; I was wondering if anyone knows of a kernel limit I
need to increase?

Thanks
---
Eric W. Bates