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Firewall Settings

Please configure your server's firewall to allow outbound traffic to KICC servers as shown below.

Firewall Guide

Allowed Port: TCP 443 Allowed Domain: Backend API Server Domains

Firewall for Webhook (Notification) Service​

If you are using the Webhook (Notification) Service, please configure your server's firewall to allow inbound traffic from the following IPs.

EnvironmentSource IPDescription
Production203.233.72.150INBOUND
203.233.72.151INBOUND
61.33.211.180INBOUND
Development61.33.205.151INBOUND

TLS/SSL Support​

The EasyPay Online Payment API supports TLS 1.2. As SSL is no longer supported, you must use a client library that supports TLS 1.2.