Forum Discussion

jwashburn_48359's avatar
jwashburn_48359
Icon for Nimbostratus rankNimbostratus
Nov 14, 2013

Lync 2013 Edge Server Interfaces same F5 pair

We are having a problem with the iApp for Lync. We are using Lync 2013 and having problems with mobile clients connecting from internally. They of course use the reverse proxy to do this, but I am ...
design
devops
iApps
lync 2013
reverse proxy
  • mikeshimkus_111's avatar
    mikeshimkus_111
    Nov 14, 2013

    It's possible to deploy all Lync services on one layer of LTM, so this should work if you have your routing correct. Internal clients and FE servers need to be able to route directly to your internal Edge VIPs and the internal interfaces of your Edge servers. The Edge external and internal interfaces must not be able to route to each other.

     

    That said, I think Mobility clients only use HTTP, with all the SIP traffic taking place server-to-server on the back end.

     

    You were having problems with the reverse proxy yesterday, did those get resolved?

     

    thanks

     

    Mike

     

mikeshimkus_111's avatar
mikeshimkus_111
Historic F5 Account

It's possible to deploy all Lync services on one layer of LTM, so this should work if you have your routing correct. Internal clients and FE servers need to be able to route directly to your internal Edge VIPs and the internal interfaces of your Edge servers. The Edge external and internal interfaces must not be able to route to each other.

 

That said, I think Mobility clients only use HTTP, with all the SIP traffic taking place server-to-server on the back end.

 

You were having problems with the reverse proxy yesterday, did those get resolved?

 

thanks

 

Mike

 

jwashburn_48359's avatar
jwashburn_48359
Icon for Nimbostratus rankNimbostratus
Nov 14, 2013
I am concerned that the external and internal interfaces being able to route to each other could pose a problem. The edge servers external interface point to the firewall as the default gateway. The internal interface of the edge servers do not have a default gateway, but the firewall also controls that vlan so in theory, I would think they could potentially route to each other. Like I said in my other post and the support ticket it doesn't seem like the traffic is leaving the BIGIP. Almost like a black hole. I don't want to get two posts going on the same topic so thanks for the info on the edge pieces and I will tackle that problem if it pops up