Cisco Systems ISA550 Manual De Usuario
Firewall
Firewall and NAT Rule Configuration Examples
Cisco ISA500 Series Integrated Security Appliances Administration Guide
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Firewall and NAT Rule Configuration Examples
This section provides some configuration examples on adding firewall and NAT
rules.
rules.
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Allowing Inbound Traffic Using the WAN IP Address
Use Case: You host a FTP server on your LAN. You want to open the FTP server to
Internet by using the IP address of the WAN1 port. Inbound traffic is addressed to
your WAN1 IP address but is directed to the FTP server.
Internet by using the IP address of the WAN1 port. Inbound traffic is addressed to
your WAN1 IP address but is directed to the FTP server.
Solution: Perform the following tasks to complete the configuration:
STEP 1
Go to the Networking > Address Management page to create a host address
object with the IP 192.168.75.100 called “InternalFTP.”
object with the IP 192.168.75.100 called “InternalFTP.”
STEP 2
Go to the Firewall > NAT > Port Forwarding page to create a port forwarding rule
as follows.
as follows.
Translated Source
Address
Address
WAN1_IP
Translated
Destination Address
Destination Address
FTPServer
Translated Services
FTP-CONTROL