ISDN Configuration Example - AppleTalk

Configuration Sample - Using Static Routing

Configuration Sample - Using Snapshot Routing

IOS 11.0 Additional Notes - Limiting Interesting Packets

Configuration Sample - Using Static Routing:

For R1:



        username R2 password SECRET
        
appletalk routing
        
isdn switch-type basic-5ess
        

        
interface BRI0
        
encapsulation ppp
        
appletalk cable-range 700-700 700.1
        
appletalk zone WAN
        
no appletalk send-rtmps
        
dialer wait-for-carrier-time 60
        
dialer map appletalk 700.2 name R2 speed 56 5552222
        
dialer-group 1
        
isdn spid1 5551111
        
ppp authentication chap
        

        
appletalk static cable-range 201-300 to 700.2 zone Branch

dialer-list 1 protocol appletalk permit

For R2:



        username R1 password SECRET
        
appletalk routing
        
isdn switch-type basic-5ess
        

        
interface BRI0
        
encapsulation ppp
        
appletalk cable-range 700-700 700.2
        
appletalk zone WAN
        
no appletalk send-rtmps
        
dialer wait-for-carrier-time 60
        
dialer map appletalk 700.1 name R1 speed 56 5551111
        
dialer-group 1
        
isdn spid1 5552222
        
ppp authentication chap
        

        
appletalk static cable-range 101-200 to 700.1 zone HQ

dialer-list 1 protocol appletalk permit

Configuration Sample - Using Snapshot Routing:

For R1:



        username R2 password SECRET
        
appletalk routing
        
isdn switch-type basic-5ess
        

        
interface BRI0
        
encapsulation ppp
        
appletalk cable-range 700-700 700.1
        
appletalk zone WAN
        
dialer wait-for-carrier-time 60
        
dialer map appletalk 700.2 name R2 speed 56 broadcast 5552222
        
dialer map snapshot 2 name R2 speed 56 broadcast 5552222
        
dialer-group 1
        
snapshot client 5 60 dialer
        
isdn spid1 5551111
        
ppp authentication chap

dialer-list 1 protocol appletalk permit

For R2:



        username R1 password SECRET
        
appletalk routing
        
isdn switch-type basic-5ess
        

        
interface BRI0
        
encapsulation ppp
        
appletalk cable-range 700-700 700.2
        
appletalk zone WAN
        
dialer wait-for-carrier-time 60
        
dialer map appletalk 700.1 name R1 speed 56 broadcast 5551111
        
dialer-group 1
        
snapshot server 5 dialer
        
isdn spid1 5552222
        
ppp authentication chap

dialer-list 1 protocol appletalk permit

IOS 11.0 Additional Notes - Limiting Interesting Packets:

Some Macintosh applications periodically send out NBP Lookup to all zones for numerous reasons - checking same serial number for copy protection, automatic search of other servers, etc. As a result, the ISDN link will get brought up frequently and wasting usages.

In 11.0(2.1) or higher, Cisco routers allow the user to configure NBP Filtering for dialer-list to prevent this problem. To do this, you should replace this line on both routers:


        dialer-list 1 protocol appletalk permit

with these lines:


        dialer-list 1 list 600

access-list 600 permit nbp 1 type AFPServer access-list 600 permit nbp 2 type LaserWriter access-list 600 deny other-nbps access-list 600 permit other-access broadcast-deny

The above example indicates you want to permit only two kinds of Type of Service for NBP Lookup to bring up the ISDN line. If you want to permit additional type, add to the example before the "deny other-nbps" statement. Make sure you need to have a different sequence number or it will overwrite the previous one. For example, if you want to also permit NBP Lookup for DeskWriter to bring up the line, the list will look like this:


        dialer-list 1 list 600

access-list 600 permit nbp 1 type AFPServer access-list 600 permit nbp 2 type LaserWriter access-list 600 permit nbp 3 type DeskWriter access-list 600 deny other-nbps access-list 600 permit other-access broadcast-deny

Posted: Tue Mar 19 09:12:50 PST 1996