Cisco 3825 Software Configuration Manual page 77
Mobile wireless edge router
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Also See for 3825:
- Non proprietary security policy (30 pages) ,
- Installation and upgrades (20 pages) ,
- Quick start manual (138 pages)
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Chapter 4
Configuring the Cisco 3825 Mobile Wireless Edge Router in a RAN-O Solution with the Command-Line
Configuring the PPP Backhaul Interfaces
Use the following instructions to perform a basic backhaul interface configuration: enabling an interface,
configuring PPP encapsulation, enabling multilink PPP operation, and specifying an ID number for the
multilink interface. You might also need to enter other configuration commands, depending on the
requirements for your system configuration and the protocols you plan to route on the interface.
In the following procedure, press the Return key after each step unless otherwise noted. At any time,
Note
you can exit the privileged level and return to the user level by entering disable at the
To continue the configuration of the backhaul links for the E1 controllers, follow these steps, while in
the global configuration mode:
Configure the serial interface. Specify the E1 slot, subslot, port number, and channel-group.
Step 1
Router(config)# interface serial slot /subslot/ port :channel-group
Where:
•
•
•
•
For example, the following command identifies the serial interface located in slot 0, subslot 0, port 0,
channel-group 0:
Router(config)# interface serial0/0/0:0
Router(config-if)#
Note
Do not assign an IP address and subnet mask to the interface.
Step 2
Router(config-if)# no ip address ip_address subnet_mask
To configure PPP encapsulation, enter the following command:
Step 3
Router(config-if)# encapsulation ppp
Enable multilink PPP operation.
Step 4
Router(config-if)# ppp multilink
Specify an identification number for the multilink interface.
Step 5
Router(config-if)# ppp multilink group group-n umber
Where group-number is the multilink group number.
For example, the following command restricts (identifies) the multilink interface, 5, that can be
negotiated:
Router(config-if)# ppp multilink group 5
OL-15667-03
slot—Slot number of the interface.
subslot—Subslot number of the interface.
port—Port number of the interface.
channel-group—ID number to identify the channel group.
To see a list of the configuration commands available to you, enter ? at the prompt or press the
Help key while in the configuration mode.
Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide
Configuration Sequence
prompt.
Router#
4-19
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