Firewall configuration

Klaxon dashboard

Klaxon requires port 443 (direct or via a proxy server) to * to operate.

Web Browser Push notification

For inbound web browser push notifications, Klaxon recommends whitelisting firewall ports 443, 5228 through 5230 with no IP restrictions. However, if you require IP restrictions, Klaxon recommends whitelisting all the IP addresses in the IPv4 and IPv6 blocks. Those blocks are listed in the Google ASN of 15169. Update this list monthly.

If your network implements Network Address Translation (NAT) or Stateful Packet Inspection (SPI), apply a 30 minute or larger timeout for our connections over ports 5228-5230. This enables us to provide reliable connectivity.

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