Using Profile Acls With The Web Caching Facility; Redirecting Http Traffic To Cache Servers - Cabletron Systems IA1100 User's Reference Manual

For example, you can mirror all IGMP traffic on the IA. You use a Profile ACL to define
the selection criteria (in this example, all IGMP traffic). Then you use a port mirroring
command to copy packets that match the selection criteria to a specified mirror port. The
following commands illustrate this example.
This command creates a Profile ACL called prof3 that uses as its selection criteria all IGMP
traffic on the IA:
ia(config)# acl prof3 permit igmp
The following command causes packets matching Profile ACL prof3's selection criteria
(that is, all IGMP traffic) to be copied to mirror port et.1.2.
ia(config)# port mirroring monitor-port et.1.2 target-profile prof3
See "Configuring the IA for Port Mirroring" on page 245
the port mirroring command.

Using Profile ACLs with the Web Caching Facility

Web caching is the IA's ability to direct HTTP requests for frequently accessed Web objects
to local cache servers, rather than to the Internet. Since the HTTP requests are handled
locally, response time is faster than if the Web objects were retrieved from the Internet.
You can use Profile ACLs with Web caching in two ways:
• Specifying which HTTP traffic should always (or never) be redirected to the cache
servers
• Specifying characteristics of Web objects that should not be cached

Redirecting HTTP Traffic to Cache Servers

You can use a Profile ACL to specify which HTTP traffic should always (or never) be
redirected to the cache servers. (By default, when Web caching is enabled, all HTTP traffic
from all hosts is redirected to the cache servers unless you specify otherwise.)
For example, you can specify that packets with a source address of 10.10.10.10 and a
destination address of 1.2.3.4 always are sent to the Internet and never to the cache
servers. The following commands illustrate this example.
This command creates a Profile ACL called prof4 that uses as its selection criteria all
packets with a source address of 10.10.10.10 and a destination address of 1.2.3.4:
ia(config)# acl prof4 permit ip 10.10.10.10 1.2.3.4
Internet Appliance User Reference Manual
Chapter 13: Access Control List Configuration Guide
for more information on using
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