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Modem management configuration example ··········································································································· 157

Network requirements ········································································································································· 157

Configuration procedure ···································································································································· 157

Verifying the configuration ································································································································· 158

Troubleshooting modem faults ···································································································································· 159

Managing a 3G/4G modem ································································································································ 160

Configuration restrictions and guidelines ·················································································································· 160

3G modem management configuration task list ······································································································· 160

4G modem management configuration task list ······································································································· 161

Configuring a cellular interface for a 3G modem ···································································································· 161

Configuring a cellular interface for a 4G modem ···································································································· 162

Configuring an Eth-channel interface for a 4G modem··························································································· 162

Configuring an IP address for an Eth-channel interface of a 4G modem ······························································ 163

Configuring a 3G/4G network ·································································································································· 163

Configuring parameter profiles ·································································································································· 164

Configuring a parameter profile ························································································································ 164

Specifying the primary and backup profiles ···································································································· 165

Configuring PIN verification ······································································································································· 165

Configuring DM ··························································································································································· 166

Issuing a configuration directive to a 3G/4G modem ···························································································· 166

Configuring automatic reboot ····································································································································· 167

Configuring manual reboot ········································································································································· 167

Displaying and maintaining 3G/4G modem information ······················································································ 168

3G/4G modem management configuration examples ··························································································· 168

3G modem management configuration example ···························································································· 168

4G modem management configuration example ···························································································· 169

Troubleshooting ···························································································································································· 170

Symptom ······························································································································································· 170

Solution ································································································································································· 170

Configuring DDR ····················································································································································· 171

Overview ······································································································································································· 171

Interfaces in DDR ················································································································································· 171

DDR implementations ·········································································································································· 171

DDR types ····························································································································································· 173

Command and hardware compatibility ···················································································································· 174

DDR configuration task list ·········································································································································· 174

Packet-triggered DDR configuration task list ····································································································· 174

Auto-dial DDR configuration task list ················································································································· 175

Route-triggered DDR configuration task list ······································································································ 175

Configuring basic settings for DDR ···························································································································· 176

Configuring physical interfaces ························································································································· 176

Configuring link layer/network/routing protocols on the dialup interface ··················································· 176

Associating a dial rule with a dialup interface ········································································································· 177

Configuring traditional DDR ······································································································································· 177

Configuring an interface to place calls ············································································································· 178

Configuring an interface to receive calls ·········································································································· 179

Configuring bundle DDR ············································································································································· 180

Configuring a dialer interface to place calls ···································································································· 180

Configuring a dialer interface to receive calls ································································································· 181

Configuring attributes for a dialup interface ············································································································· 182

Configuring MP for DDR ············································································································································· 183

Configuration restrictions and guidelines ········································································································· 184