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Posted by sstott2
Photon

When connecting to client, what are the high UDP port range that TeamViewer uses to try and connect to clients.

I am trying to set up a rule for TeamViewer through my firewall and every time I try to connect to a device I see 3 connections going from my internal address directed to my external address. I am trying to connect to a device using TeamViewer on my home LAN. I am able to connect but would like to stop getting failed attempts on my firewall policy without having to allow all UDP ports through.

 

Can someone tell me what the high port range is that TeamViewer is using to connect to the clients so that I can allw them through.

 

<14>1 2018-06-13T09:28:26.608-05:00 001-trust RT_FLOW - RT_FLOW_SESSION_DENY [junos@2636.1.1.1.2.135 source-address="1.1.1.1" source-port="49866" destination-address="2.2.2.2" destination-port="62464" connection-tag="0" service-name="None" protocol-id="17" icmp-type="0" policy-name="trust_to_untrust_deny" source-zone-name="trust" destination-zone-name="untrust" application="UNKNOWN" nested-application="UNKNOWN" username="N/A" roles="N/A" packet-incoming-interface="irb.4" encrypted="UNKNOWN" reason="policy deny"] session denied 1.1.1.1/49866->2.2.2.2/62464 0x0 None 17(0) trust_to_untrust_deny trust untrust UNKNOWN UNKNOWN N/A(N/A) irb.4 UNKNOWN policy deny
<14>1 2018-06-13T09:28:26.608-05:00 001-trust RT_FLOW - RT_FLOW_SESSION_DENY [junos@2636.1.1.1.2.135 source-address="1.1.1.1" source-port="49866" destination-address="2.2.2.2" destination-port="56045" connection-tag="0" service-name="None" protocol-id="17" icmp-type="0" policy-name="trust_to_untrust_deny" source-zone-name="trust" destination-zone-name="untrust" application="UNKNOWN" nested-application="UNKNOWN" username="N/A" roles="N/A" packet-incoming-interface="irb.4" encrypted="UNKNOWN" reason="policy deny"] session denied 1.1.1.1/49866->2.2.2.2/56045 0x0 None 17(0) trust_to_untrust_deny trust untrust UNKNOWN UNKNOWN N/A(N/A) irb.4 UNKNOWN policy deny
<14>1 2018-06-13T09:28:26.608-05:00 001-trust RT_FLOW - RT_FLOW_SESSION_DENY [junos@2636.1.1.1.2.135 source-address="1.1.1.1" source-port="49866" destination-address="2.2.2.2" destination-port="63662" connection-tag="0" service-name="None" protocol-id="17" icmp-type="0" policy-name="trust_to_untrust_deny" source-zone-name="trust" destination-zone-name="untrust" application="UNKNOWN" nested-application="UNKNOWN" username="N/A" roles="N/A" packet-incoming-interface="irb.4" encrypted="UNKNOWN" reason="policy deny"] session denied 1.1.1.1/49866->2.2.2.2/63662 0x0 None 17(0) trust_to_untrust_deny trust untrust UNKNOWN UNKNOWN N/A(N/A) irb.4 UNKNOWN policy deny