3com 4210 User Manual

C

HAPTER

 24: W

EB

 C

ACHE

 R

EDIRECTION

 C

ONFIGURATION

 G

UIDE

interface Ethernet1/0/1

port access vlan 10

#

interface Ethernet1/0/2

port access vlan 20

#

interface Ethernet1/0/3

port access vlan 30

#

interface Ethernet1/0/4

port link-type trunk

port trunk permit vlan 1 40 50

webcache address 192.168.4.2 mac 0012-0990-2250 vlan 40

#

webcache redirect-vlan 10

webcache redirect-vlan 20

webcache redirect-vlan 30

# 

When configuring Web cache redirection, consider the following:

■

To ensure the success of Web cache redirection, check that the VLAN-interfaces 
for all the involved VLANs (VLAN 40, VLAN 10, VLAN 20, and VLAN 30) are up.

■

Do not redirect the HTTP packets destined for VLAN 40 to the Web cache 
server.

■

Enabling STP can cause Web cache redirection failure. To avoid this, set the port 
connected to the Web cache server as a hybrid or trunk port and configure the 
port to permit the packets of the VLAN for the Internet access service (for 
example, VLAN 50 in Figure 66).