Cisco IOS Cookbook, 2nd Edition

Using BSTUN

Problem

You want to connect two Bisync (BSC) devices through an IP network.

Solution

This pair of router configurations shows how to define a tunnel connecting two serial ports supporting Bisync (BSC or Binary Synchronous Communications) devices:

BSTUN-A#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
BSTUN-A(config)#interface Loopback0
BSTUN-A(config-if)#ip address 10.1.16.5 255.255.255.252
BSTUN-A(config-if)#exit
BSTUN-A(config)#bstun peer-name 10.1.16.5
BSTUN-A(config)#bstun protocol-group 1 bsc
BSTUN-A(config)#interface Serial1
BSTUN-A(config-if)#encapsulation bstun
BSTUN-A(config-if)#clock rate 19200
BSTUN-A(config-if)#bstun group 1
BSTUN-A(config-if)#bsc char-set ebcdic
BSTUN-A(config-if)#bsc secondary
BSTUN-A(config-if)#bstun route all tcp 10.1.16.9
BSTUN-A(config-if)#exit
BSTUN-A(config)#end
BSTUN-A#

And the configuration of the second router is similar:

BSTUN-B#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
BSTUN-B(config)#interface Loopback0
BSTUN-B(config-if)#ip address 10.1.16.9 255.255.255.252
BSTUN-B(config-if)#exit
BSTUN-B(config)#bstun peer-name 10.1.16.9
BSTUN-B(config)#bstun protocol-group 1 bsc
BSTUN-B(config)#interface Serial1
BSTUN-B(config-if)#encapsulation bstun
BSTUN-B(config-if)#clock rate 19200
BSTUN-B(config-if)#bstun group 1
BSTUN-B(config-if)#bsc char-set ebcdic
BSTUN-B(config-if)#bsc primary
BSTUN-B(config-if)#bstun route all tcp 10.1.16.5
BSTUN-B(config-if)#exit BSTUN-B(config)# ...