What are GoToConnect's IP blocks?
GoToConnect Voice handsets must have unfiltered access to GoToConnect’s network ranges. These IPv4 and IPv6 ranges are listed below and are also available in a automatically parsable (and updated) form at the bottom of this article.
|GoToConnect Block 1||184.108.40.206/22||255.255.252.0||0.0.3.255|
|GoToConnect Block 2||220.127.116.11/22||255.255.252.0||0.0.3.255|
|GoToConnect Block 3||18.104.22.168/22||255.255.252.0||0.0.3.255|
Our recommendation is to create explicit rules that allow traffic to and from GoToConnect’s IP blocks (LAN→ WAN and WAN→ LAN) and set high in priority — even if this is implicitly stated in another access rules down the list. Be sure that the phones are using a reliable DNS server as a DNS failure can delay or prevent call setup. We strongly recommend using Google’s DNS, 22.214.171.124 and 126.96.36.199.