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Appendix B: Network IP Topology
ITP Endpoints and Inter-Tel Networking
Inter-Tel
®
5000 Installation Manual – Issue 2.4, May 2008
Page B-27
ITP Endpoints and Inter-Tel Networking
This example shows that to add support for Inter-Tel networking, you expand the ACL to allow
the Inter-Tel Private Networking port to be accessible from the Internet to the Inter-Tel CS-5200/
5400/5600 system. Responses to communications initiated from inside (for example, http
request for a Web page) are controlled by the firewall functionality through dynamic ACLs.
ip access-list extended s0in
permit tcp any host 208.132.23.66 eq 5566
permit udp any host 208.132.23.66 eq 5567
permit tcp any host 208.132.23.66 eq 5570
permit udp any host 208.132.23.66 range 6004 6247
deny ip any any
ITP Endpoints, Inter-Tel Networking, and Remote Admin/
Diagnostics
This example shows that to allow remote administration and diagnostics, you open up additional
ports shown in bold in the following example. Each of these ports has a distinct function, so they
should be evaluated individually to determine the need.
ip access-list extended s0in
permit tcp any host 208.132.23.66 eq 5566
permit udp any host 208.132.23.66 eq 5567
permit tcp any host 208.132.23.66 eq 5570
permit tcp any host 208.132.23.66 eq 4000
permit tcp any host 208.132.23.66 eq 4444
permit tcp any host 208.132.23.66 eq 80
permit tcp any host 208.132.23.66 eq 22
permit udp any host 208.132.23.66 range 6004 6247
deny ip any any
ITP Endpoints, Inter-Tel Networking, Remote Admin/Diagnostics,
and SIP Endpoints
This example shows that to allow SIP endpoints from the Internet, you open up the SIP port to
the SIP server. SIP endpoints on the “internal LAN” may require additional “fixup” if NAT is
performed between the internal LAN and the DMZ.
i
p access-list extended s0in
permit tcp any host 208.132.23.66 eq 5566
permit udp any host 208.132.23.66 eq 5567
permit tcp any host 208.132.23.66 eq 5570
permit tcp any host 208.132.23.66 eq 4000
permit tcp any host 208.132.23.66 eq 4444
permit tcp any host 208.132.23.66 eq 80
permit tcp any host 208.132.23.66 eq 22
permit udp any host 208.132.23.67 eq 5060
permit udp any host 208.132.23.66 range 6004 6247
deny ip any any
Summary of Contents for Inter-Tel 5000
Page 1: ...Inter Tel 5000 M I T E L Installation and Maintenance Manual ...
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Page 3: ...Issue 2 4 May 2008 Inter Tel 5000 Installation and Maintenance Manual Part Number 580 8000 ...
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Page 468: ...Part No 580 8000 Issue 2 4 May 2008 A691 9111A ...