Cisco 827 - 827 Router - EN Instrukcja Użytkownika Pobierz pdf (Strona 4)

Network Scenarios Pagina 4 di 35

http://www.cisco.com/univercd/cc/td/doc/product/access/acs_fix/827/827swcfg/ntwkscen.htm 14/02/2001

Replacing a Bridge or Modem with the Cisco 827 Router

This scenario shows a remote user connected to the Internet. You may want to use a network similar to

this one if you want to set up a minimal connection to the Internet and bridge it through the 827 routers.

This network replaces an Alcatel 1000 bridge or modem with a Cisco 827 or 827-4V router by using

AAL5SNAP encapsulation and bridging (RFC 1483 bridge mode) on the ATM interface.

Figure 2-2 shows the network topology for this scenario.

Figure 2-2: Replacing a Bridge or Modem with a Cisco 827 Router

The 827 router is configured to act as a bridge on the WAN, so the data packets are bridged through

the 6400 router onto the Internet. This network setup creates the simplicity of bridging data but also

maintains router control. This network is very simple but limits more complex services such as stopping

broadcast traffic. If you want more services available on your network, you may want to consider

Scenario 2 or 3.

Configuring the Scenario

Note If you have only a single ATM PVC for your bridging network, you do not have to configure the

protocol bridge broadcast.

This scenario includes configuration tasks and a configuration example. To add additional features to this

network, refer to "Feature-By-Feature Router Configurations."

After configuring your router, you need to configure the PVC endpoint. For a general configuration

example, refer to "Cisco 3640 Gateway Configuration Example" at the end of this chapter.

Follow the steps below to replace a bridge or modem with the Cisco 827 router, beginning in global

configuration mode. Each step includes the same values that are shown in the bridging configuration

example at the end of this section.

Step Task Router

Prompt

Command

1 .

Disable IP routing. Router

(config)#

no ip routing

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