02-24-2014 05:51 AM - edited 03-07-2019 06:23 PM
I have to configure an instance of a WCCP on a 4510 switch and I have to admit have read the examples given by Cisco but dont have understanding of the example config
Router(config)#
ip wccp web-cache group-address 224.1.1.100 password alaska1
I have attached the config in question above and could someone please clarify what the group address 224.1.1.100 is ?
Many Thanks
Mark
02-24-2014 06:11 AM
Mark
The multicast address is used when you have multiple routers/L3 switches using the same service group. So instead of the cache engines having to send protocol messages to each router you can use a multicast address instead.
It is optional and you don't necessarily need to use it if you only have on L3 device actually responsible for WCCP.
Jon
02-24-2014 06:14 AM
Hi Jon thanks for the prompt reply but Im still a bit unsure of what syntax I would use to get this working ?
Thanks
Mark
02-24-2014 06:17 AM
Mark
Is it just for http ie port 80 traffic or other traffic as well ?
Jon
02-24-2014 06:18 AM
Mark
In addtion where are the clients in relation to the proxy eg. which vlan(s) etc.
Jon
02-24-2014 06:21 AM
It is for HTTP and HTTPs and the clients are on a Layer 3 Vlan if that helps
Thanks
Mark
02-24-2014 06:36 AM
Mark
web-cache is for http only. You could use this and then use a service group for https but it might be easier to simply use a service group for both so -
client vlan = vlan 10 = 192.168.5.0/24
4500 config
=========
ip wccp
int vlan 10
ip wccp
access-list 101 permit tcp 192.168.5.0 0.0.0.255 any eq http
access-list 101 permit tcp 192.168.5.0 0.0.0.255 any eq https
note if you use a password then obviously this needs to be configured on the proxy as well.
The above assumes the proxy is not in vlan 10.
Jon
02-24-2014 06:38 AM
That is very helpful thank you for time and trouble
02-25-2014 06:36 AM
Hi Jon I have tried what you said and still cant get it to work
The syntax doesnt even alloe me to configure a redirect list ??
Thanks
Mark
02-25-2014 06:41 AM
Mark
Sorry, the syntax should be "redirect-list" not "redirect list"
Does it give you that option ?
Jon
02-25-2014 06:47 AM
Whay happens is I enable wccp version 2 and then syntax prompts 3 options
<0-254> Dynamically defined service identifier number
version protocol version
web-cache Standard web caching service
<0-254> Dynamically defined service identifier number
version protocol version
web-cache Standard web caching service
02-25-2014 06:50 AM
Do you mean when you do -
"ip wccp ?"
If so see previous answer where i posted the configuration ie. you need to define a service group number, any number is fine in that range.
If not then what IOS version and supervisor are you using ?
Jon
02-25-2014 06:55 AM
The syntax i have is "ip wccp 0 group-list proxy_users (which is my access list to specify who goes through proxy) and then I get prompted to add group address ????
02-25-2014 06:57 AM
its IOS 12.2 (54)SG1 and supervisor 1V
02-25-2014 06:59 AM
and its a cisco 4507 switch
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide