How do I configure a Cisco network firewall?

Because network firewalls prohibit all traffic by default, normal network traffic can be achieved only if it is properly configured.

        1. Enter global configuration mode  ciscoasa# Configure TERMINAL 2. Select the network interface that you want to use as the external interface of the network firewall   Ciscoasa (config) # interface interface-id 3. Specify the IP address and netmask  ciscoasa (config-if) #   4 for this interface. Specify the interface IP address and netmask  ciscoasa (config-if) # Nameif outside info:security level for "outside" set to 0 by default  5. Activate the external interface  ciscoasa (config-if) # no shutdown 6. Return to global configuration mode  ciscoasa (config-if) # exit 7. Select the network interface  ciscoasa (config-if) # interface interface-id 8 that you want to be the internal interface for the network firewall. For the interface to be specified as an internal interface.  ciscoasa (config-if) # IP address ip-address subnet-mask 9. Specify the interface as a content interface  ciscoasa (config-if) # Nameif Inside info:security level for "outside" set to default 10. Activate the external interface  ciscoasa (CONFIG-IF) # No Shutdown 11. Return to global configuration mode  ciscoasa (config-if) # exit 12. Start Web Vpn ciscoasa (config) # webvpn  13. Allow VPN external access  ciscoasa (CONFIG-WEBVPN) #enable outside 14. Specify the location of the SSL VPN client (SSL VPN clinet,svc) file.  ciscoasa (CONFIG-WEBVPN) # svc IMage disk0:/sslclient-win-1.1.2.169.pkg 15. Enables the security appliance to download the syc file to the remote computer.  ciscoasa (CONFIG-WEBVPN) #svc enable 16. Return to global configuration mode  ciscoasa (CONFIG-WEBVPN) # end 17. Save Configuration   ciscoasa# Copytup-config Running-config Do the most comprehensive Hong Kong resources, independent IP space, VPS Cloud Server, standalone server, multi-IP station group server, Hong Kong high-defense, Hong Kong hen, IP Wholesale, hosting leasing business, Contact qq:2881064159

How do I configure a Cisco network firewall?