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198 Chapter 7: Configuring a Cisco 700 Series Router
Routing and WAN
IP and IPX are the only protocols supported on the Cisco 700 series router; however, the 700
series router can function as a bridge for any other protocol. RIP v1 and RIP v2 are supported
for IP, and RIP for IPX is also supported. Support for Cisco's snapshot routing feature is also
supported to provide an on-demand method of routing update exchanges. Dial-on-demand
routing and bandwidth-on-demand features compatible with the customary IOS features are
also configurable on the device.
ISDN and Telephony
The 700 series router provides dial tone for the telephone service on plain old telephone service
(POTS) RJ-11 interfaces. On the earlier 700 series models (750/760), the model number defined
the ISDN interface type. The 700 series models that ended in an even number provided the
built-in network termination 1 (NT1) interface for ISDN. The models that ended in an odd
number provided an S/T interface, for which the customer had to supply the NT1 device if it
was needed.
In the United States, the built-in NT1 provided a complete solution. The NT1 in the international
community, however, is a telephone company device. Thus, there is the need for the different
models. The recent models now have both the S/T interface and the U interface on the router.
The 775/776 model types are currently recommended. Again, the even numbered 776 comes
with a built-in NT1 and the 775 does not. Both models provide two POTS jacks and a four-port
hub.
Cisco 700 Series Router Profiles
The Cisco 700 series router uses different profiles to store the configuration parameters
associated with a remote connection or location. This is not unlike the IOS command-line
syntax that most engineers associate with an interface dialer on an enterprise-type Cisco router.
In a 2500 series router, the phone number, the authentication password, and the addressing
could be associated with a dialer interface. The 700 series router, using the same concept, calls
the stored information for a connection a profile, and stores it in a UNIX subdirectory.
Creating each profile on a 700 series router is similar to creating an interface dialer on a Cisco
IOS platform. The unique advantage that the 700 provides is that the profiles can be named
instead of numbered. For example, on an IOS platform, the connection to the corporate office
can be interface dialer 1, whereas on the 700, the profile can be called corp_office. This
simplicity provides a key element in troubleshooting when a configuration has not been viewed
for many months.
The 700 series router can store a maximum of 20 profiles. This includes 16 user profiles, or 16
definitions for remote connections. There are also three permanent profiles: LAN, standard, and