This will only allow network 192.168.1.0 /24 on the inside interface to reach the HTTP server. Instead of giving everyone access to the HTTP server we will specify which network and interface are permitted to use the HTTP server: ASA1(config)# http 192.168.1.0 255.255.255.0 INSIDE Our next step is to tell the ASA which ASDM image we want to use: ASA1(config)# asdm image disk0:/asdm-731.binĪSDM requires HTTP and it’s disabled by default, let’s enable it: ASA1(config)# http server enable If you don’t have one, copy it to the flash memory before you continue.

First of all, make sure you have the ASDM image on the flash memory of your ASA: ASA1(config)# show disk0: In this lesson I’ll show you how you can enable it. Cisco’s ASDM (Adaptive Security Device Manager) is the GUI that Cisco offers to configure and monitor your Cisco ASA firewall.