This article describes how you need to configure your firewall to send/receive events to/from SIGNL4.
Web portal, REST API & Webhook traffic to SIGNL4 (HTTPS, Layer 7)
HTTPS web traffic is handled via IP 188.8.131.52 on port 443 (TLS).
For example, if you are not receiving alerts, because your systems cannot connect to SIGNL4 from within your network, it could be due to a firewall configuration preventing 3rd party systems, such as SCOM, to reach the SIGNL4 Webhook or REST API. In this case please make sure your firewall allows traffic to the beforementioned IP/port.
IMPORTANT: As of October 1st 2023, our IP address pool will be extended by an additional IP address. Please make sure to also allow for HTTPS traffic to IP
on port 443 by that date to avoid any interruptions!
Email traffic to SIGNL4 (SMTP, Layer 7)
If you integrate your systems via SMTP email with SIGNL4, make sure to allow traffic to IP 184.108.40.206 on these ports:
On the various email ports we e.g. support these kind of security handshakes:
Webhook notifications from SIGNL4
If you have registered your HTTPS endpoints to receive outbound webhook notifications from SIGNL4, that traffic always originates from IP 220.127.116.11.