Tech Notes

Block it

• access-list outside-in extended deny ip host <IP address> any

Unblock

• no access-list outside-in extended deny ip host <IP address> any

And don’t forget this:

• access-group outside-in in interface outside

Firewall(config)# ip address ip_address subnet_mask

Firewall(config)# route if_name foreign_network foreign_mask gateway[metric]

The line 2 above is the key, without it, you can not access the firewall from outside.