To Enable Wccp 2.0 After Installation - HP P4535A - Web Cache Server Appliance Administrator's Manual

Chapter 4

To enable WCCP 2.0 after installation:

1. Telnet into the HP web cache appliance and select Shell Access as described in
Methods‚ on page
2. Open the
records.config
3. Set the following variable to 1:
proxy.config.wccp.enabled INT 1
4. Set the following variable to 2:
proxy.config.wccp.version INT 2
- Optional -
To enable security so that Traffic Server and your routers can authenticate each other, set the following
variable to 1:
proxy.config.wccp2.security_enabled INT 1
5. For unicast mode, go to
For multicast mode, set the following variable to 1:
proxy.config.wccp2.multicast_enabled INT 1
6. Edit the following variable to specify the IP multicast address:
proxy.config.wccp2.multicast_address STRING address
7. If multicast mode is not enabled, you must edit the following variable to specify the number of routers that
direct traffic to Traffic Server:
proxy.config.wccp2.number_of_routers INT number
8. If multicast mode is not enabled, you must edit the following variable to specify the IP addresses of each
router that directs traffic to Traffic Server:
proxy.config.wccp2.router0_ip STRING IPaddress
proxy.config.wccp2.router1_ip STRING IPaddress
...
9. Save and close the
10. Run the command
TIP
ARM bypass and WCCP
If Traffic Server has an ARM bypass rule (discussed in
forwards particular client requests directly to the origin server, bypassing the cache. Bypassed requests are
unchanged by the ARM; they retain their client source IP addresses. In WCCP 1.0, ARM bypass rules cannot
work if the WCCP router is also Traffic Server's default gateway router, as shown in Figure 4-2‚ on page 24.
The WCCP router sends port 80 traffic to the Traffic Servers and it serves as the Traffic Servers' default
gateway or next hop to the internet. Bypassed requests go to the WCCP router, which sends them back to
Traffic Server.
In WCCP 2.0, you can exclude certain router interfaces from redirection. Traffic Server bypass rules can work
if you exclude the router interface to which Traffic Server is connected from using WCCP. You can do this by
setting the router configuration command i
documentation for information about router configuration).
7.
file located in the Traffic Server's
step 7.
file.
records.config
to apply the configuration changes.
traffic_line -x
To check that the router is sending traffic to Traffic Server, look at the statistics in
the Monitor pages of Traffic Manager. For example, check that the Objects Served
value in the Dashboard page increases.
p wccp redirect exclude in
directory with Vi.
config
Interception bypass‚ on page
(refer to Cisco's WCCP
Transparent Proxy Caching
Overview of Access
28), Traffic Server
26