Connecting the Network - Proxy and Firewall Compatibility. WattMaster VAV CommLink 5 Communications Interface

TROUBLESHOOTING

Connecting the Network

Proxy and Firewall Compatibility

Proxy and Firewall confi gurations

may become necessary when the CommLink 5 is connected to a LAN/WAN that is protected by a commercially available Firewall, Proxy, or NAT enabled router. Examples of these would include Cisco, NetGear, LinkSys, or WatchGuard Technologies. Also, some ISPs provide IP Address ranges that are already fi re-walled at the NOC or ISP Head-End.

Make sure that your IT Department or ISP can create a mapped TCP port 39288 on your fi rewall/proxy to TCP port 39288 on the assigned

IP Address of the CommLink 5.

Only with proper confi guration of the Firewall/Proxy are connections to the CommLink 5 from outside of the local area network going to be possible. Check that the Firewall/Proxy TCP port 39288 is not set to time out or reset after a specifi ed amount of time when there is no traffi c from the remote PC.

Ethernet Cable To Other

Nodes On Building LAN Or WAN

Firewall /

Ethernet Cable

Personal Computer

Optional Direct

Computer Connection

To CommLink 5 Via Crossover

(Supplied with IP Module)

CommLink 5

Figure 4: Example Network Diagram of a Firewall or Proxy Confi guration

CommLink 5 Technical Guide

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