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Refer to the exhibit. Router R1 and R2 are configured with Frame Relay. Their DLCIs are configured properly, however they cannot ping each other. One router is a Cisco router and the
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How to Configure a Cisco Router for Internet Access (step by step) | HOWtoRouteSwitch
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how to Shutdown All Interface , Save Configuration & reload Cisco switch - YouTube
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RouterGods - Configuring a backup interface on Cisco Routers - YouTube
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