Casio ISA550WBUN3K9 manual Configure a secondary WAN, Network Addressing Mode, Dhcp Client

Networking	4
Configuring the WAN

Configure a secondary WAN

To configure a secondary WAN (WAN2), click Add. Then use the WAN - Add/Edit page to configure the connection. If you enabled IPv4/IPv6 routing mode, complete both tabbed pages, as described for the primary WAN interface. Click OK to save your settings in the pop-up window. Click Save to apply your settings to the security appliance. To determine how the two ISP links are used, configure the WAN redundancy settings. See Configuring WAN Redundancy, page 130.

•If you are having problems with your WAN connection, see Internet Connection, page 453.

Network Addressing Mode

The security appliance supports five types of network addressing modes. You need to specify the network addressing mode for the primary WAN and the secondary WAN depending on your ISP requirements.

NOTE Confirm that you have proper network information from your ISP or a peer router to configure the security appliance to access the Internet.

Network Addressing	Configuration
Mode
DHCP Client	Connection type often used with cable modems. Choose this option if your ISP
	dynamically assigns an IP address on connection.
	NOTE: Unless a change is required by your ISP, it is recommended that the MTU
	values be left as is.
	• MTU: The Maximum Transmission Unit is the size, in bytes, of the largest
	packet that can be passed on. Choose Auto to use the default MTU size,
	or choose Manual if you want to specify another size.
	• MTU Value: If you choose Manual, enter the custom MTU size in bytes.

Cisco ISA500 Series Integrated Security Appliances Administration Guide 125