For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

Allanwynn_16283's avatar
Allanwynn_16283
Icon for Nimbostratus rankNimbostratus
Nov 05, 2015

Microsoft Lync cannot connect when using F5 Network Access

Hi Everyone,

 

Does anyone knows what may cause the issue when the user connects with the network access, he cannot connect successfully with their lync account, they can ping the server but cannot connect to it. What adjustments do you thinks we need to do?

 

BIG-IP Access Policy Manager (APM)
deployment
security

1 Reply

  • Henrik_Gyllkran's avatar
    Henrik_Gyllkran
    Icon for Nimbostratus rankNimbostratus
    Nov 05, 2015

    I'm by no means knowledgeable in regards to Lync, but I'm aware that Lync uses SIP and that SIP is a bit stupid in the same way as FTP in that it sends IP-addresses in the payload, so one question would be if you're applying SNAT on the Network Access configuration. Don't know if that is relevant or not for even connecting to the server but it might be a factor.