Cisco ASA 5505 Configuration Manual page 368

Configuring Static and Default Routes
By default, the Both radio button is selected, and both IPv4 and IPv6 addresses appear in the pane. To
limit your viewed choices to routes configured with IPv4 addresses, click the IPv4 radio button. To limit
your viewed choices to routes configured with IPv6 addresses, click the IPv6 radio button.
Click Add or Edit.
Step 3
The Add or Edit Static Route dialog box appears.
Step 4 From the Interface drop-down list, choose the internal or external network interface name enabled in
Interfaces:
management (internal interface)
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• outside (external interface)
Step 5 In the IP Address field, type an internal or external network IP address for the destination network.
For IPv4 addresses, enter 0.0.0.0 to specify a default route. The 0.0.0.0 IP address can be abbreviated as
0. Optionally, click the ellipsis to browse for an address.
For IPv6 addresses, enter two colons (::) to specify a default route. Optionally, click the ellipsis to
browse for an address.
Step 6 In the Gateway IP field, enter the IP address of the gateway router, which is the next hop address for this
route.
To enter a default route, set the IP address and mask to 0.0.0.0, or the shortened form of 0.
Optionally, click the ellipsis to browse for an address.
Note
The addresses you specify for the static route are the addresses that are in the packet before entering the
adaptive security appliance and performing NAT.
Choose the netmask from the drop-down list for the destination network.
Step 7
Depending upon which route you chose to filter (IPv4, IPv6, or both), do one of the following:
For IPv4 static routes (or for both IPv4 and IPv6 static routes), enter the network mask address that
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applies to the IP address. Enter 0.0.0.0 to specify a default route. The 0.0.0.0 netmask can be
abbreviated as 0.
For IPv6 static routes only, enter a prefix length.
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In the Metric field, type the metric, or administrative distance.
Step 8
The metric or distance is the administrative distance for the route. The default is 1 if you do not specify
a value. Administrative distance is a parameter used to compare routes among different routing
protocols. The default administrative distance for static routes is 1, giving it precedence over routes
discovered by dynamic routing protocols but not directly connect ed routes.
The default administrative distance for routes discovered by OSPF is 110. If a static route has the same
administrative distance as a dynamic route, the static routes take precedence. Connected routes always
take precedence over static or dynamically discovered routes.
(Optional) In the Options area, choose only one of the following options for a static route.
Step 9
None—No options are specified for the static route. This option is the default.
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Cisco ASA 5500 Series Configuration Guide using ASDM
19-4
If an IP address from one adaptive security appliance interface is used as the gateway IP address,
the adaptive security appliance will ARP the designated IP address in the packet instead of
ARPing the gateway IP address.
Chapter 19 Configuring Static and Default Routes
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