I'm running an ASA5550 with Secure computing's smartfilter IFP for URL filter....and I'm having major..major download slowness. It can take 2 days to download 600MBs.
If I create a rule on the ASA to bypass an end host and not have it filtered, downloads are ultra fast (100MB internet link). Regular web browsing is fast..it's just downloads.
url-server (inside) vendor smartfilter host 10.153.102.11 port 4005 timeout 10 protocol TCP connections 3
url-server (inside) vendor smartfilter host 10.153.252.13 port 4005 timeout 10 protocol TCP connections 3
url-cache src_dst 128
filter url http 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 allow longurl-truncate cgi-truncate
url-block block 128