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Configuring IP Routing
Configuring WAN interfaces
Specify the remote IP address
In the Connections profile's IP Options subprofile, the LAN Adrs parameter specifies the IP
address of the remote device. Before accepting a call from the far end, the MAX matches this
address to the source IP address presented by the calling device. The IP address of the remote
device can be one of the following values:
Value
IP address of a router If the remote device is an IP router, specify its address, including its
IP address of a dial-in
host
The null address
(0.0.0.0)
Note: The most common cause of trouble in initially establishing an IP connection is
incorrect configuration of the IP address or subnet specification for the remote host or calling
device.
Configuring numbered-interface routing
In the Connection profile's IP Options subprofile, set the WAN Alias parameter to specify
another IP address for the remote device, used for numbered-interface routing. The WAN alias
address will be listed in the routing table as a gateway (next hop) to the LAN Adrs value. The
caller must use a numbered interface, and its interface address must agree with the WAN Alias
setting.
Specifying a local IP interface address
In the Connection profile's IP Options subprofile, the IF Adrs parameter specifies another local
IP-interface address, to be used as the local numbered interface instead of Ethernet IP Adrs
(the default).
Enabling dynamic IP addressing
In the Answer profile, set the Assign Adrs parameter to Yes to enable the MAX unit to allocate
IP addresses dynamically from a pool of designated addresses on the local network. The
caller's PPP software must be configured to accept an address dynamically. If the Pool Only
parameter is set to Yes in the Ethernet > Mod Config > WAN Options profile, the unit
terminates connections that reject the assigned address during PPP negotiation. For related
information, see "Configuring dynamic address assignment to a dial-in host" on page 9-36.
In the Connection profile's IP Options subprofile, the Pool parameter specifies an IP-address
pool from which the unit assigns the caller an IP address. If the Pool parameter is null but all
other configuration settings enable dynamic assignment, the unit gets IP addresses from the
first defined address pool.
9-32
How to specify
subnet mask identifier. (For background information, see "IP address
and subnet mask usage in MAX units" on page 9-1.) If you omit the
mask, the MAX inserts a default subnet mask that makes the entire
far-end network accessible.
If the remote device is a dial-in host running PPP software, specify its
address, including a subnet mask identifier of /32 (for example,
10.2.3.4/32).
If the remote device is a dial-in host that accepts dynamic address
assignment, leave the LAN Adrs parameter blank.
MAX 6000/3000 Network Configuration Guide
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