WCCP and Squid connection timeout

Hi,

I've configured WCCP. Everything seem to work fine for a single
host (configured using the redirection list). If I try to redirect
http traffic for a whole subnet I always get connection timeouts
for allmost every GET request. Seemed to be load-dependend?!

Any ideas?

Ralf

RSP7513 (IOS 12.07):
ip wccp enable
ip wccp redirect-list 1xx
ip web-cache redirect (on the outgoing interface)

access-list 1xx deny ip any host PROXY-CACHE-IP
access-list 1xx permit ip SOME-SUBNET.0 0.0.0.255 any
access-list 1xx deny ip any any

System (FreeBSD3.1):
CPU: Pentium II/Xeon/Celeron (451.02-MHz 686-class CPU)
MEM: 512 MByte
Cache: 27 GByte
Kernel: GRE, IPFIREWALL (no NAT)
xxx allow tcp from HOST-IP-ONE to any
xxx allow tcp from HOST-IP-TWO to any
xxx fwd 127.0.0.1,8081 tcp from any to any 80

Squid (2.3STABLE1):
http_port 8081
httpd_accel_host virtual
httpd_accel_port 80
httpd_accel_with_proxy on
httpd_accel_uses_host_header on

--
Ralf Kalwa                       Technical University of Clausthal
                                                  Computing Centre 
http://www.tu-clausthal.de/~kalwa/                         Germany