Section 3.0: ISDN Configuration (6 points)
3.1. Basic ISDN (3 points)
Configure ISDN on R2 and R6.
Use network 179.7.2.8/30.
Advertise the ISDN network in Area 0 using clear-text authentication.
Do not configure any legacy commands.
ISDN information:
BRI number on R2 is 99047132
BRI number on R6 is 99047265
Switch-type = basic-net3
3.2. Dial Backup (3 points)
Configure DDR between R2 and R6 when any interface on R4 goes down.
Do not configure use backup interface or ospf demand-circuit to achieve this task.
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