waas in router without sub interfaces vlans

[ivan.martin]

Hi my name is Ivan:

I have a wave 274, wae 674 and wave 574, and i would like to deploy the WAAS in this way:

Cisco wae central manager and wae core attached in the switch core 3750 in stack ( WS-C3750G-24TS-S1U and WS-C3750G-12S-S) with IOS

c3750-ipbase-mz.122-35.SE5.bin. But i want to configuring like it:

Switch Core Stack

!

int gig 0/x

description Link SwitchCore>>WAECentralManager

switchport mode access

switchport access vlan 100

!

int gig 0/y

description Link SwitchCore>>WAECore

switchport mode access

switchport access vlan 200

!

int gig 0/z

description Link SwitchCore>>RouterWAN

switchport mode access

switchport access vlan 300

!

int vlan 100

description VlanWAECentralManager

ip wccp 61 redirect in

ip add 10.0.41.1 255.255.255.0

!

int vlan 200

description VlanWAECore

ip wccp redirect excluded inn

ip add 10.0.42.1 255.255.255.0

!

int vlan 300

descripton VlanRouterWAN

ip add 10.0.43.1 255.255.255.0

!

int vlan 400

description VLan ServerFarm

ip wccp 61 redirect in

ip add 10.0.44.1 255.255.255.0

!

Config Router WAN

!

Int gig 0/a

description Link WAN

ip add 190.41.227.26 255.255.255.248.0

ip wccp 62 redirect out

!

int gig 0/b

description Link LAN

ip add 10.0.44.2 255.255.255.0

My question is: Is OK this configuration or there is something wrong?

Please could you help me

Regards

Ivan

[Bhavin Yadav]

Hi Ivan,

Yes, this will work but couple of possible mis-configs. Though the above config is not a "good" practice.

WCCP redirect exclude in is needed only on the interface connected to WAE directly.

The WCCP statements are generally applied on one switch or router only for inbound as well as outound redirection. so, you do not need to have wccp on both 3750s. You can apply WCCP to either one of that only.

Your config should loook like the one given here:

Switch Core Stack

!

int gig 0/x

description Link SwitchCore>>WAECentralManager

switchport mode access

switchport access vlan 100

!

int gig 0/y

description Link SwitchCore>>WAECore

switchport mode access

switchport access vlan 200

!

int gig 0/z

description Link SwitchCore>>RouterWAN

switchport mode access

switchport access vlan 300

ip wccp 62 redirect in

!

int vlan 100

description VlanWAECentralManager

ip add 10.0.41.1 255.255.255.0

!

int vlan 200

description VlanWAECore

ip wccp redirect excluded in

ip add 10.0.42.1 255.255.255.0

!

int vlan 300

descripton VlanRouterWAN

ip add 10.0.43.1 255.255.255.0

ip wccp 62 redirect in --> added.

!

int vlan 400

description VLan ServerFarm

ip wccp 61 redirect in

ip add 10.0.44.1 255.255.255.0

!

No WCCP needed on wan router.

Hope this helps.

Regards.

PS: Please mark this as answered, if this Answers your question.

[finn.poulsen]

Ivan,

Please be aware that you'll need to purchase IP Services for at 3750 to run WCCP.

Also remember to change SDM Prefer template to a routing template (on the switch)

Also suggest that you configure mask-assignment and L2-assignment&L2-return (on the WAAS core box) especially if you're running latest versions of WAAS as they only support strict assignment methods.

Additional note : 3750 does not support "ip wccp redirect out" as suggested in original suggestion.

Best Regards

[ivan.martin]

Thanks Finn

But, if i put ip wccp 62 in in the interface wan of my router wan? and ip wccp 61 redirect in in the vlan of servers and redirect excluded in the vlan of wae core?

Is true about the ios ip services in the sw 3750

Thanks for your answer

Regards

Ivan

[finn.poulsen]

Hi Ivan,

In your setup, this probably won't work :

According to your suggested konfigs - the router and the switch communicates across 10.44.0.0/24 (where the servers resides to) which is :

• VLAN 400 on the switch
• int Gi0/b on the router

Dependent on ICMP redirect you migth end in a situation where the switch doesn't see L3-traffic destined for your WAN and thus cannot redirect it.

And besides I think that you'll need to have a Service pair (i.e 61 and 62) on the same router.

Suggest that you either :

• Use WCCP solely on the 3750 switch as Bhavin suggests (requires IP Services) and don't use redirect exclude (generally redirect exclude is only required were you, for some reason, would be forced to use WCCP redirect out)
• Use WCCP solely on the router, where the config would look like this :

Int gig 0/a

description Link WAN

ip add 190.41.227.26 255.255.255.248.0

ip wccp 62 redirect in

!

int gig 0/b

description Link LAN

ip add 10.0.44.2 255.255.255.0

ip wccp 61 redirect in

This would require that you use WCCP redirect and WCCP return (negotiated return) as the WAE isn't L2-adjacent.

Dependent on what kind of router you have.And normally on a router WCCP is supported in Ip base/Universal images ... i.e. no additional feature license required.

Best regards

Finn