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Alteon Application Switch Operating System Application Guide
Filtering and Traffic Manipulation
366
Document ID: RDWR-ALOS-V2900_AG1302
Redirecting Traffic with a NAT Filter
When redirecting traffic with a NAT filter, the client traffic is first redirected to a VAS server group.
Traffic is returned to Alteon transparently through a NAT filter, which changes the client address to
CNAT before sending it to the HTTP port. The NAT filter translates the CNAT of the return traffic back
to its original state before returning it to the client.
Figure 54: Redirecting Traffic with a NAT Server
To redirect traffic with a NAT filter
1. Configure Filter 10 to redirect traffic to Real Server Group 10 (VAS server).
>> # /cfg/slb/filt 10
(Select the menu for Filter 10)
>> Filter 10# sip 1.1.0.0
(From a specific source IP address)
>> Filter 10# smask 255.255.0.0
(From a specific source IP mask)
>> Filter 10# dip any
(To any network destination address)
>> Filter 10# dmask 0.0.0.0
(For any subnet range)
>> Filter 10# proto tcp
(For TCP protocol traffic)
>> Filter 10# rport 0
(To any real server port)
>> Filter 10# dport http
(To any HTTP destination port)
>> Filter 10# ipver v4
(Set filter IP version to IP Version 4)
>> Filter 10# action redirect
(Redirect matching traffic)
>> Filter 10# group 10
(Redirect to Real Server Group 10)