CCIE Routing and Switching Practice Labs

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Section 4: ISDN (6 Points)

Configure ISDN on R3 and R5 using PPP. R3 and R5 should be able to ping each other across the ISDN link.
Make sure that routing protocols will pass through the ISDN link only when it is up.
The ISDN link should pass routing protocols when R5-fa0/0 goes down.

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