WCCP assignment method mismatch

[leonardoli]

Hi all,

I am using a Cisco 3825 running 12.4(25G) code. I just upgraded my WAE (oe674) to 5.1.1c.

The WAE and router wouldnt peer due to assignment method mismatch when i do a show wccp router.

Router Information for Service Id: 61

        Routers Seeing this Wide Area Engine(0)
                -NONE-

        Routers not Seeing this Wide Area Engine
        10.204.28.1     - Assignment Method Mismatch

        Routers Notified of from other WAE's
                -NONE-

Router Information for Service Id: 62

        Routers Seeing this Wide Area Engine(0)
                -NONE-

        Routers not Seeing this Wide Area Engine
        10.204.28.1     - Assignment Method Mismatch

        Routers Notified of from other WAE's
                -NONE-

The WAE is configured as follows:

wccp router-list 1 10.204.28.1

wccp tcp-promiscuous service-pair 61 62

router-list-num 1

assignment-method mask

password ****

redirect-method gre

egress-method wccp-gre

enable

exit

wccp flow-redirect enable

When i changed the assignment method to hash, everything worked. I believe Cisco 3825 should support Mask.

Any advice?

[Kanwaljeet Singh]

Hi Leonardo,

Was mask assignment working before you upgraded you WAE to 5.1.1c? According to the below link MASK assigment should work in the ISR verion you are running.

http://www.cisco.com/en/US/prod/collateral/contnetw/ps5680/ps6870/white_paper_c11-608042.html

Regards,

Kanwal

[leonardoli]

Yes Mask assignment was working fine prior to the upgrade. Interestingly, on other Cisco 3825 routers with 15.1 codes, they were able to use Mask assignment for peering with oe674 WAE.

[Kanwaljeet Singh]

Hi Leonardo,

Did you try disabling wccp on router as well as WAE and re-enable it on router and then WAE and see if that makes a difference? If you have already done that and since as per documentation MASK assignment is supported in version you are running on router and it was working prior to upgrade, i would suggest capturing WCCP communication i.e HIA and ISU and opening a TAC case for further investigation. Did you follow the procedure as suggested in release notes during upgrade?

WCCP Interoperability

Central Managers running Version 5.1.1x can manage WAEs running software Versions 4.2.1 and later. However, we recommend that all WAEs in a given WCCP service group be running the same version.

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Note All WAEs in a WCCP service group must have the same mask.

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To upgrade the WAEs in your WCCP service group, follow these steps:

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Step 1 You must disable WCCP redirection on the Cisco IOS router first. To remove the global WCCP configuration, use the following no ip wccp global configuration commands:

Router(config)# no ip wccp 61

Router(config)# no ip wccp 62

Step 2 Perform the WAAS software upgrade on all WAEs using the WAAS Central Manager GUI.

Step 3 Verify that all WAEs have been upgraded in the Devices pane of the WAAS Central Manager GUI. Choose Devices to view the software version of each WAE.

Step 4 If mask assignment is used for WCCP, ensure that all WAEs in the service group are using the same WCCP mask value.

Step 5 Reenable WCCP redirection on the Cisco IOS routers. To enable WCCP redirection, use the ip wccp global configuration commands:

Router(config)# ip wccp 61

Router(config)# ip wccp 62

Release notes for your reference.

http://www.cisco.com/en/US/docs/app_ntwk_services/waas/waas/v511/release/notes/ws511xrn.html#wp151010

Regards,

Kanwal