How to Allow Remote Management of Cisco ASA 5510 Firewall How do I actually configure the firewall to allow remote administration via Telnet, SSH, or HTTPS/ASDM? Solution Cisco ASA Allow Telnet - Via Command Line 1. Log on to the firewall > Go to enable mode > Go to configure terminal mode. User Access Verification Password: Type help or '?' for a list of available commands. PetesASA> en Password: ******** PetesASA# configure terminal PetesASA(config)# 2. Now you can either allow access for one machine, or a whole network, the syntax is "telnet {ip address} {subnet mask} {interface that its connected to}. The following will just allow one host (192.168.1.10). PetesASA(config)# PetesASA(config)#telnet 192.168.1.10 255.255.255.255 inside PetesASA(config)# The following will just allow a whole network 192.168.1.1 to 254 PetesASA(config)# PetesASA(config)#telnet 192.168.1.0 255.255.255.0 inside PetesASA(config)# 3. To set the password you ...