Auto-zone-control-systems IP Module Kit Installation Guide for the IP Module Instrukcja Użytkownika Pobierz pdf (Strona 16)

IP MODULE

Technical Guide

CommLink 5

Firewall //Proxy Router

Ethernet Cable To Other

Nodes On Building LAN Or WAN

Ethernet Cable

Optional Direct

Computer Connection

To CommLink 5 Via Crossover

(Supplied with IP Module)

Personal Computer

Connecting the Network

Figure 17: Example Network Diagram of a Firewall or Proxy Conﬁ guration

Proxy and Firewall Compatibility

Proxy and Firewall conﬁ gurations may become necessary

when the CommLink 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.

Only with proper configuration of the Firewall/Proxy are

connections to the CommLink from outside of the local area

network going to be possible. Check that the Firewall/Proxy port

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.

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Auto-zone-control-systems IP Module Kit Installation Guide for the IP Module Instrukcja Użytkownika Strona 16