User manual

Network Setup
116
The ICAP server may process outgoing web requests from a LAN PC using a REQMOD
service, or incoming web traffic from an external web server using a RESPMOD service.
A typical function of a REQMOD service would be URL filtering, a typical function of a
RESPMOD service would be virus scanning.
Check Enable ICAP functionality to enable the ICAP features of the CyberGuard unit's
web cache.
ICAP REQMOD server is the URL for an ICAP server's REQMOD service. This allows
an ICAP server to modify web transaction requests, i.e. to process as they are being
initially requested by the LAN PC, e.g. for URL filtering. It must begin with icap://, e.g.:
icap://192.168.0.10:1344/reqmod
ICAP RESPMOD server is the URL for an ICAP server's RESPMOD service. This
allows an ICAP server to modify web transaction responses, i.e. to process traffic that is
returned from an external web server, e.g. for virus scanning. It must begin with icap://,
e.g.: icap://192.168.0.10:1344/respmod
You may choose to Bypass ICAP server if uncontactable. If the ICAP server is not
responding to requests, web transactions are allowed as normal. If this is option
disabled, all web transactions are blocked until the ICAP server becomes contactable.
QoS Traffic Shaping
This advanced feature is provided for expert users to fine tune their network connections.
Traffic shaping allows you to give preference to certain types of network traffic to
maintain quality of service when a network connection is under heavy load.