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New Member

Static Route Question

What's going on?

I have a question for the group on IP static routes.

I'm studying a book that lists, in several

different places, the static route statement:

ip route Dialer2

Is the subnet mask of a typo, or is it the proper syntax for a point-to-point route

out of the Dialer2 interface? I haven't found

any similar examples in the Cisco documentation.

Thx, JWK

New Member

Re: Static Route Question

The subnet mask of indicates a single ip address. This will route only to the dialer2 interface.

New Member

Re: Static Route Question

I think the routing statement is there to allow broadcast traffic and this is rightly so with dial-on-demand routing (DDR) for ISDN networks.


ip route ip route BRI0

would inform the router that in order to reach any ip network not defined in its routing table (all zeros network), it will go to the ip address, and in order to get to the host ip number, it will go through interface BRI0.

It is not good to use for an interface connected to the network because this will stop traffic on that interface.

I am aware that may be used to configure GRE over IPSec where the GRE/IPSec tunnel is going through a firewall doing Network Address Translation (NAT).

---------- for a Class A address (those that begin with 1 to 127), for Class B addresses (those that begin with 128 to 191), for Class C addresses (those that begin with 192

and higher).


I hope this helps in a way.


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