Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Shiraz's avatar
Shiraz
Icon for Altostratus rankAltostratus
Mar 19, 2013

Cisco Jabber over SSL-VPN (F5 Edge Gateway)

Dears,   Does anyone tried using Cisco Jabber over SSL-VPN (Edge Gateway). If yes, is there any special configuration required to make it work...   Regards,   Shiraz  
config
design
HoneyBadgerIT_1's avatar
HoneyBadgerIT_1
Icon for Nimbostratus rankNimbostratus
Feb 11, 2014

Hey Shiraz,

 

We are rolling Jabber out right now with an on premise CUP server. The Jabber client is 9.6, and is for Windows. All functionality seems to work over the F5 Edge Gateway except for inbound calls when using Jabber as a softphone. When you have Jabber set to use your computer for calls and you are on the F5, it refuses to ring or pop-up the inbound call.

 

I have a ticket open with support on this. The one setting that appears to allow calls to ring through is to turn on "preserve source port strict" under Access Policy->Network Access->Network settings. This causes other traffic problems for services we are using on the F5. If I turn this "port strict" on at the virtual server level it doesn't make any change at all. I have also tried creating a virtual server for SIP traffic (port 5060) and forwarding that to the call manager, but that doesn't work. Today we also tried creating a local traffic pool and applying that to the virtual server, but no go.

 

I will let you know if I make any progress.

 

2Bs's avatar
2Bs
Icon for Nimbostratus rankNimbostratus
Mar 15, 2023

Hi,

did you by any chance solve this issue?

I am having the same issue and cant resolve it.

Thanks friend.

  • LiefZimmerman's avatar
    LiefZimmerman
    Icon for Admin rankAdmin
    Apr 05, 2023

    Hey 2Bs - unfortunately @honeybadgerIT_1 is an inactive user account (I'm not sure why I'm suddenly thinking about how to make this more obvious for all the accounts like this...but I'm gonna give it a shot).

    That said, I see boneyard (on of our MVPs) may know more about this? Do you know if this question was re-asked elsewhere?

    I see one unanswered post here: https://community.f5.com/t5/technical-forum/cisco-jabber-apm-cannot-make-internal-calls/td-p/251591
    containing a link to this Support KB article K16680 on VoIP through network access connections.  https://my.f5.com/manage/s/article/K16680 

    Looks like there are quite a few others as well asking for help between 2018 and 2020.
    If ^that^ info isn't helpful I'll poke around internally to see if I can find someone to address this.

    cheers

  • boneyard's avatar
    boneyard
    Icon for MVP rankMVP
    Apr 08, 2023

    Can only repeat what i said before. Start a new question with a good description of the issue, drawing of the situation, configuration, version, the original poster did that and explained quite some things he tried, have you tried those?