DuraMAR 2150 – User’s Manual
Network interfaces general configuration
To configure a network interface the user must enter the
Specific Configuration Mode
for the given interface
by issuing the
interface
if-name
command while in
Configuration Mode
. The prompt will change
accordingly.
For example:
HSDPA-rt(config)# interface hsdpa0
HSDPA-rt(config-if-haspa0)#
The list of available interfaces can be obtained by issuing the
show interface
command.
Ethernet interface configuration
To configure the Ethernet interface the user must perform the following steps:
1.
configure
2.
interface
if-name
3.
ip address
ip-address [mask] [link-gw]
4.
enable
If you don’t specify any net-mask the system will use a standard class net-mask based on the IP address
itself. The
link-gw
parameter is the IP address of the gateway used for outgoing traffic from this interface.
The available commands for configuring the Ethernet interface are the following:
description
Adds a text description for the interface
Assigns an IP address to the interface
ip address
addr [mask] [link gw]
Sets the IP Maximum Transmit Unit (MTU)
mtu
Forces the TCP Maximum Segment Size for the sessions entering or exiting from the
interface
tcpmss
Enables Network Address Translation. The source address of all of the packets sent out
through this interface will be changed to the IP address assigned to the interface itself
nat
Activates the specific interface
enable
HSDPA interface configuration
The configuration of the HSDPA interface affects the system’s operation mode.
Router Mode
In Router Mode the system operates as a standard router: all the traffic that comes in from the Ethernet
interface is routed through the 3G wireless link.
To configure the system for operating in Router Mode, the
hsdpa0
interface must have the NAT service
enabled and must be used as default route for the outgoing traffic. The IP connectivity between the CISCO
3200 ISR and the ECC must be properly configured and the IP address assigned to the
eth0
interface of the
ECC must be configured as default gateway on the CISCO 3200 ISR.
The steps required to configure the interface for Router Mode are as follows:
1.
configure
2.
interface
if-name
3.
apn
network_name
4.
defaultroute
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