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SSL VPN (WebVPN) issues with IOS 15.0(1)M1

Hello everyone... I need your help!

I am having some weird issues with webvpn/anyconnect, please find the relevant information below;


- AnyConnect Client prompts users with the following error:

"The secure gateway has rejected the agent's VPN connect or reconnect request. A new connection requires re-authentication and must be started manually. Please contact your network administrator if this problem persists."


Mar  5 13:09:45:

Mar  5 13:09:45: WV-TUNL: Tunnel CSTP Version recv  use 1

Mar  5 13:09:45: WV-TUNL: Allocating tunl_info

Mar  5 13:09:45: WV-TUNL: Allocating stc_config

Mar  5 13:09:45: Inserting static route: SSLVPN-VIF36 to routing table

Mar  5 13:09:45: WV-TUNL: Use frame IP addr ( netmask (

Mar  5 13:09:45: WV-TUNL: Tunnel entry create failed:IP= vrf=77 session=0x67234340

Mar  5 13:09:45: HTTP/1.1 401 Unauthorized

Mar  5 13:09:45:

Mar  5 13:09:45:

Mar  5 13:09:45:

Mar  5 13:09:45: Deleting static route: SSLVPN-VIF36 from routing table

Mar  5 13:09:45: WV-TUNL: Failed to install (addr, table_id 77) to TCP

Mar  5 13:09:45: WV-TUNL*: Received server IP packet 0x6692EB08:

Mar  5 13:09:45: WV-TUNL: CSTP Message frame received from user usr-test (


WV-TUNL:      Text: HTTP response contained an HTTP error code.

Mar  5 13:09:45: WV-TUNL: Call user logout function

Mar  5 13:09:45: WV-TUNL: Clean-up tunnel session (usr-test)

When the error occurs, the "SVCIP install TCP failed" counter increments:

VPN-Router1#  show webvpn stats detail context CUSTOMER-VPN


Tunnel Statistics:

    Active connections       : 1       

    Peak connections         : 3          Peak time                : 19:09:04

    Connect succeed          : 9          Connect failed           : 5       

    Reconnect succeed        : 0          Reconnect failed         : 0       

    SVCIP install IOS succeed: 14         SVCIP install IOS failed : 0       

    SVCIP clear IOS succeed  : 18         SVCIP clear IOS failed   : 0       

    SVCIP install TCP succeed: 9          SVCIP install TCP failed : 5       

    DPD timeout              : 0        


IOS Version Details:

Cisco IOS Software, 7200 Software (C7200-ADVIPSERVICESK9-M), Version 15.0(1)M1, RELEASE SOFTWARE (fc1)

System image file is "disk2:c7200-advipservicesk9-mz.150-1.M1.bin"

The router also runs IPSEC remote access VPN in addition to the webvpn/anyconnect scheme.


webvpn context CUSTOMER-VPN

title "SSL VPN for Customer"

ssl authenticate verify all


login-message "Enter username and passcode"


policy group CUSTOMER-VPN

   functions svc-required

   svc keep-client-installed

   svc split include

   svc split include


default-group-policy CUSTOMER-VPN

aaa authentication list AAA-LIST

aaa authentication auto

aaa accounting list AAA-LIST

gateway vpn virtual-host

logging enable


The error happens sporadically, at least once a week, and on different contexts. Does anyone have any clue on what can cause this issue? Any help is appreciated!

Everyone's tags (6)
Community Member

Re: SSL VPN (WebVPN) issues with IOS 15.0(1)M1

We encountered same issue very sporadically running IOS 12.4(24)T3 (ADV-IP-SERV) on 3825

It matches quite close your configuration. Did you opened already a Cisco TAC Case?

Community Member

Re: SSL VPN (WebVPN) issues with IOS 15.0(1)M1


Do you allocate the AnyConnect client's IP-adresses via IP pools on your ACS server? If so, you can consider switching it to a local ip pool on the router. This seemed to have solved the problem for us.


Community Member

Re: SSL VPN (WebVPN) issues with IOS 15.0(1)M1

Yes, we allocate addresses through ACS. Local IP adress assignment i consider as a workaround only.

Community Member

Re: SSL VPN (WebVPN) issues with IOS 15.0(1)M1

Have you seen my post ?

At that point in time we were running with local pool definition.

As the http 401 rc happens very sporadically we still gathering incident reports internally.

Will open a case if you did not yet.

cheers, Andy

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