Basic ISDN Configuration (0.5 Hours)
ISDN switch information:
ISDN switch type: basic-5ess
ISDN numbering:
- R1: 0298017705
- R4: 0296307050
SPIDS are not required.
Configure the ISDN interfaces on R1 and R4 as follows:
Only when S0 of R1 goes down, R1 should place an outgoing call to R4.
R4 cannot call R1 under any circumstances.
Use PPP encapsulation and the strongest authentication available.
Ensure that you never bring up more than one B channel to keep costs to a minimum.
When the Frame Relay link is restored, bring down the ISDN link after 25 minutes.
When the ISDN is active, all routers must be able to ping and telnet the local ISDN interfaces on R1 and R4.
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