Cisco Small Business RV 120W Wireless-N VPN Firewall ...

Configuring the FirewallConfiguring Advanced Firewall Settings4• Private Range Begin—The starting IP address in the private (LAN) IPaddress.• Public Range Begin—The starting IP address in the public (WAN) IPaddress.• Range Length—Range length maps one to one private address to publicaddress up to the given range.• Service—Shows configured services. Services for one-to-one NAT allowyou to configure the service to be accepted by the private IP (LAN) addresswhen traffic is sent to the corresponding public IP address. Configuredservices on private IP addresses in the range are accepted when traffic isavailable on the corresponding public IP address.To add a one-to-one NAT rule:STEP 1STEP 2STEP 3Choose Firewall > Advanced Settings > One-to-One NAT.Click Add.Enter information in the following fields:• Private Range Begin—The starting IP address in the private (LAN) IPaddress.• Public Range Begin—The starting IP address in the public (WAN) IPaddress.• Range Length—Range length maps one to one private address to publicaddress up to the given range.• Service—Choose the service for which the rule applies.STEP 4Click Save.Configuring MAC Address FilteringMAC address filtering allows you to block traffic coming from certain knownmachines or devices. The router uses the MAC address of a computer or deviceon the network to identify it and block or permit the access. Traffic coming in froma specified MAC address will be filtered depending upon the policy.Cisco RV120W Administration Guide 81