01-14-2016 02:01 PM - edited 03-18-2019 05:26 AM
We currently have a Lync Server 2013 configured and working.
Our company purchase Cisco Telepresence and we were told to have these DNS entries added by our ISP
A record:
Telepresence.gov - Public IP
SRV records:
All of the following records will point to telepresence.gov
Record Priority Weight Port
_h323cs._tcp.telepresence.gov 10 10 1720
_h323ls._udp.telepresence.gov 10 10 1719
_sip._tcp.telepresence.gov 10 10 5060
_sip._udp.telepresence.govv 10 10 5060
_sips._tcp.telepresence.gov 10 10 5061
_turn._udp.telepresence.gov 10 10 3478
_collab-edge._tls.telepresence.gov 10 10 8443
Our Lync server also uses ports tcp/5061 and udp/3478.
- access-list 101 extended permit tcp any object obj-10.164.1.65 eq 5061
- access-list DMZ_access_in extended permit tcp host 10.164.1.65 any eq 5061
- access-list DMZ_access_in extended permit udp host 10.164.1.65 host 10.10.20.65 eq 3478
When the DNS entries were added by our ISP our external link broke our connection for people to connect to our Lync Server externally.
Can the ports for Telepresence by changed to that they would not conflict with our Lync Server?
01-14-2016 02:52 PM
Have a look at the Cisco TelePresence Microsoft Lync and Cisco VCS Deployment Guide, bottom of page 60 and top of page 61. This shows the DNS SRV records that will be required for the VCS and for Lync.
Wayne
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01-15-2016 10:09 AM
This only SRV record i can find that was added for Lync:
SRV record _sipfederationtls._tcp.DOMAIN.gov to the A record sip.DOMAIN.gov
TCP/5061 is the only open port coming from the outside in for push notifications.
when i added the SRV records for Telepresence, external users failed to connect, once taken out, everything went back to working fine.
01-14-2016 03:56 PM
They might use the same ports, but as the document that Wayne points out they use different SRV records. So even if you use the same domain for both Lync and TelePresence environments, the different SRV records should point to their each respective environment and no cause a conflict.
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