Casio ISA550WBUN3K9 manual Cu-Seeme, Translated IP InternalIP

Firewall	6
Firewall and NAT Rule Configuration Examples

Match Action

Permit

Allowing Inbound Traffic from Specified Range of Outside Hosts

Use Case: You want to allow incoming video conferencing to be initiated from a restricted range of outside IP addresses (132.177.88.2 to 132.177.88.254). In the example, connections for CU-SeeMe (an Internet video-conferencing client) are allowed only from a specified range of external IP addresses.

Solution: Perform the following tasks to complete the configuration:

STEP 1 Go to the Networking > Address Management page to create an address object with the range 132.177.88.2 to 132.177.88.254 called “OutsideNetwork” and a host address object with the IP 192.168.75.110 called “InternalIP.”

STEP 2 Go to the Firewall > NAT > Port Forwarding page to create a port forwarding rule as follows.

Original Service	CU-SEEME
Translated Service	CU-SEEME
Translated IP	InternalIP
WAN	WAN1
WAN IP	WAN1_IP
Enable Port	On
Forwarding
Create Firewall Rule	Off

STEP 3 Go to the Firewall > Access Control > ACL Rules page and create the ACL rule as described below.

From Zone	WAN
To Zone	LAN

Cisco ISA500 Series Integrated Security Appliances Administration Guide 279