Using Apple Airport Extreme Router with AT&T Gateway Modem
Just enter the setup and manually configure an IP-address for the ethernet interface of the Airport Extreme in the same private address range as the ethernet interface in the Cisco router. Example: If the IP-address of the ethernet interface (Cisco Router) is 192.168.0.1 netmask 255.255.255.0 assign 192.168.0.2 netmask 255.255.255.0 to the Airport Extreme and GenieGo IP Addresses | AT&T Community Sep 28, 2014 Connecting AirPort Extreme, Time Capsule or Airport
Airport does not have an ip adress and cannot connect to
Setting static IP addresses within Airport Utility Aug 08, 2017 network - Configuring AirPort Extreme with Existing Router
**Free shipping for orders over $25 this is a used Apple Air Port Extreme 802 WiFi A1408, Apple Extreme WiFi this is originally $100 new but this is lightly used still in the original case and box. please review all pics. ****this is a no return item only store credit. any questions please send an email.*****
Mar 03, 2010 AirPort - Official Apple Support