Network Router User Manual

Web OS 10.0 Application Guide
Chapter 8: Application Redirection
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212777-A, February 2002
Excluding Noncacheable Sites
Some Web sites provide content that is not well suited for redirection to cache servers. Such
sites might provide browser-based games or applications that keep real-time session informa-
tion or authenticate by client IP address.
To prevent such sites from being redirected to cache servers, create a filter which allows this
specific traffic to pass normally through the Web switch. This filter must have a higher prece-
dence (a lower filter number) than the application redirection filter.
For example, if you wished to prevent a popular Web-based game site on subnet 200.10.10.*
from being redirected, you could add the following to the previous example configuration:
>> # /cfg/slb/filt 1 (Select the menu for filter 1)
>> Filter 1# dip 200.10.10.0 (To the site’s destination IP address)
>> Filter 1# dmask 255.255.255.0 (For entire subnet range)
>> Filter 1# sip any (From any source IP address)
>> Filter 1# proto tcp (For TCP traffic)
>> Filter 1# dport http (To an HTTP destination port)
>> Filter 1# sport any (From any source port)
>> Filter 1# action allow (Allow matching traffic to pass)
>> Filter 1# ena (Enable the filter)
>> Filter 1# ../port 5 (Select SLB port 5)
>> SLB port 5# add 1 (Add the filter to port 5)
>> SLB port 5# ../port 6 (Select SLB port 6)
>> SLB port 6# add 1 (Add the filter to port 6)
>> SLB port 6# apply (Apply configuration changes)
>> SLB port 6# save (Save configuration changes)