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Cisco 700 Series Router Profiles 199
internal. These, in addition to the system profile, make a total of 20. The system profile is also
referred to as the global profile in some Cisco documentation.
The concept of storage from the standpoint of the IOS is not relevant; set commands are
immediately stored in the configuration in which they are typed. Some commands require the
router to be rebooted to take effect. The general rule of thumb is to reboot following any
configuration change.
LAN Profile
The LAN profile defines the connection to the Ethernet port. It is used for routing. The
parameters that are set here are similar to the configuration on the E0 using the familiar IOS
command strings. Although the parameters are similar, the syntax is not. The parameters are the
IP address and mask, the route protocol, and so forth.
Standard Profile
The standard profile is used for inbound ISDN calls that do not have an associated profile. This
profile does not support routing. The standard profile is the default profile. If authentication is
not required and the destination device you are connecting to does not have a user-defined
profile, the router uses the standard profile. If authentication is required and no profile is found,
the call is dropped.
Internal Profile
The internal profile is used when routing is enabled and provides the configuration parameters
to pass data between the bridge engine and the IP/IPX route engine.
System Profile
The system profile provides a declaration of what protocols can be used by the other profiles.
If a routing protocol is turned on in the system profile, it can be used by any profile. An example
here tells the story best: if you turn off IPX routing in the system profile, no profile can do IPX
routing. If the system profile has IPX routing turned on, a profile can choose to do IPX routing.
The system provides a global control for all protocols.
Profile Use Guidelines
Much ado is made about routing in the profiles. Simply stated, an unknown call is not handled
with the route engine, and the standard profile does not support routing. On the other hand, a
known call, or one with an associated profile, is passed to the internal profile if IP or IPX routing
has been declared for the profile and then sent to the route engine for processing to the LAN.