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LAPG

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Hello everyone,

We just signed up to use SIP phones instead of using the old PBX box. We received the phones the other day but upon plugging them in and adjusting settings in Kerio Conrol (Version 9.1.0) we cannot connect them to our Service Providers system to get them registered and working. Here are the settings that they said need to be adjusted:

"Firewalls are primarily designed to keep unauthorized traffic from accessing your private network. In some cases the default firewall rules might cause Nextiva's traffic to be blocked. The simplest way to avoid issues is to open up inbound and outbound traffic to/from Nextiva's IP addresses.
• IP Addresses: 208.73.144.0/21 and 208.89.108.0/22. This range covers the IP addresses from 208.73.144.1 - 208.73.151.255 and 208.89.108.0 208.89.111.255.
• Ports: 5060-5090
• Transport Method: TCP & UDP
• Permission: Allow All Traffic

When setting up firewall rules, please ensure you are creating a firewall rule to allow access through the entire Nextiva IP address range. All Nextiva servers are located in the following IP range:
CIDR: 208.73.144.0/21 & 208.89.108.0/22
Range: 208.73.144.0 - 208.73.151.255 and 208.89.108.0 208.89.111.255 Cisco Firewall Rules
To whitelist Nextiva's IP range in a Cisco command line device, the following rules must be set:
• access-list permit ip 208.73.144.0 0.0.7.255
• access-list permit ip 208.89.108.0 0.0.3.255"

What should my traffic rules look like to accomplish the above?

Also, is there anything else that would need to be adjusted?

Thank you!


-Mark
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ksnyder (KERIO)

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1. Use "IP Address Group" to define the trusted Nextiva IP Address range(s)
2. Use "Services" to create a custom service for the required Nextiva TCP/UDP ports
3. Use 1 & 2 above to create a traffic rule that allows those IP's to reach your firewall on those ports


Ken Snyder
Director, Sales Engineering | Kerio
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