Article ID: 000056212
Last Modified Date: 12/08/2021
Access Level: Public
The Firewall in front of the V2IU must allow the following ports to and from the V2IU
Polycom V2IU (ALL) What ports the Firewall in front of the V2IU must allow the following ports to and from the V2IU:
Ports need to be opened:
Ports need to be opened:
| In all cases | ||
| FTP | TCP | 21 (optional) |
| HTTP | TCP | 80 (optional for management) |
| HTTPS | TCP | 443 (optional for management) |
| RTP | UDP | 16386:17286 Bi-Directional (4300T-E3) 16386:25386 Bi-Directional (5300-E10 and E25) 16386:34386 Bi-Directional (6400-E and S85) |
| SNMP | UDP | 161 (optional for management) |
| SSH | TCP | 22 (optional for management) |
| Telnet | TCP | 23 (optional for management) |
| TFTP | UDP | 69 (optional) |
| SNTP | TCP | 123 (optional) |
| MGCP Phones | ||
| MGCP | UDP | 2427, 2429, 2432, 2727 (optional) |
| SIP | ||
| SIP | UDP | 5060 plus any Additional ports specified on the VoIP ALG page (optional) |
| SIP | UDP | 5050 (when Survivability enabled) (optional) |
| H.323 End-points | ||
| Q.931 | TCP | 1720 (Bi-Directional) |
| RAS | UDP | 1719 (Bi-Directional) |
| H.245 | TCP | 14085:15084 (Bi-Directional) |
| VSX Systems | ||
| Using "fixed ports" on the VSX is not recommended | ||