Auto-zone-control-systems CommLink IV Technical Guide, Installation Instruct Manual do Utilizador descarregar pdf (Página 15)

CommLink IV Technical Guide

Operator Interface

Connecting the Network

Figure 4: 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 IV 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 Watch-

Guard 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 IV.

Only with proper conﬁ guration of the Firewall/Proxy are connections

to the CommLink IV 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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