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Hamish's avatar
Hamish
Icon for Cirrocumulus rankCirrocumulus
Nov 22, 2011

ActiveSync via APM

Does anyone know which HTTP methods are supported in APM? Currently I have a test F5 with APM enabled in a VS that is in front of an exchange server for providing active-sync access.

Ideally we want to use APM to make web access users authenticate with secureid token, and activesync users with 'something else'. (Maybe a cert). But in testing I get HTTP parsing errors 


Nov 22 17:18:39 local/cdc-3-lb4 err apd[5767]: 01490000:3: HTTPParser.cpp func: "parseHttpRequestHeader()" line: 174 Msg: Unknown HTTP method: OPTIONS
Nov 22 17:18:39 local/cdc-3-lb4 err apd[5767]: 01490093:3: 00000000: Request header parsing failed while processing request from remote client

Now... I don't get these errors on HTTP enabled VS's that don't have APM on them... Which suggests to me that APM is using a different parser for HTTP than the HTTP profiles use.

anyone know which HTTP methods are supported on APM? And what's the results if I disable HTTP processing on receipt of the OPTIONS method?

H

config
design

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  • Hamish's avatar
    Hamish
    Icon for Cirrocumulus rankCirrocumulus
    Nov 22, 2011
    Ahh... Ignore me... Must have run the Wizzard wrong, because the _sys_APM_activesync iRule is missing form the VS (sol13074: Configuring BIG-IP APM as a proxy for Microsoft Exchange ActiveSync)

     

     

    H
  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Nov 23, 2011
    Hey Hamish,

     

     

    Were you testing with a limited APM license (ie, not a full license)? If so, I think there might be an issue with the system APM iRules being loaded from the profile_base.conf into the running config.

     

     

    Aaron
  • John_Alam_45640's avatar
    John_Alam_45640
    Historic F5 Account
    Apr 13, 2012
    Note: For v11.1 check out this solution: sol13497

     

    https://support.f5.com/kb/en-us/solutions/public/13000/400/sol13497.html?sr=20682626

     

  • dubdub's avatar
    dubdub
    Icon for Nimbostratus rankNimbostratus
    May 02, 2012
    Hi all,

    I'm running into a similar error as Hamish - 

    May 1 20:43:06 ltm1 err apd[13484]: 01490000:3: AccessPolicyD.cpp func: "process_request()" line: 699 Msg: EXCEPTION AccessPolicyD.cpp line:619 function: process_request - error reading from socket
May 1 20:43:06 ltm1 err apd[13484]: 01490000:3: HTTPParser.cpp func: "parseHttpRequestHeader()" line: 174 Msg: Unknown HTTP method: OPTIONS

    in my 11.1 HF1 config with APM in front of ActiveSync. It seems limited and sporadic and I haven't been able to tie it to a specific test case. I'm not using the _sys_APM_activesync rule itself, but a very slimmed down custom variant of it: 

    when HTTP_REQUEST {
  if { ![HTTP::cookie exists "MRHSession"] } {
     HTTP::header replace "clientless-mode" 1
     if { [HTTP::header Authorization] eq "" }{
        HTTP::respond 401 WWW-Authenticate Basic
     }
  }
}

    I don't see anything in the _sys_APM_activesync rule that specifically addresses the HTTP method, but it's also not the same exact error message that Hamish was seeing. The "error reading from socket" concerns me. I have a max user APM license. Any suggestions?

    Thanks,

    Jen