HPE FlexNetwork MSR series Configuration Manual page 7

Troubleshooting 3G and 4G modem management ········································································· 163
3G/4G modem failure················································································································ 163
Configuring DDR ·········································································· 165
Overview ································································································································ 165
Interfaces in DDR ·············································································································· 165
DDR implementations ········································································································ 165
DDR types ······················································································································· 167
Command and hardware compatibility·························································································· 167
DDR configuration task lists ······································································································· 168
Packet-triggered DDR configuration task list ··········································································· 168
Auto-dial DDR configuration task list ····················································································· 168
Route-triggered DDR configuration task list ············································································ 169
Configuring basic settings for DDR ······························································································ 169
Configuring physical interfaces ···························································································· 169
Configuring link layer/network/routing protocols on the dialup interface ········································ 170
Associating a dial rule with a dialup interface ················································································· 170
Configuring traditional DDR ········································································································ 171
Configuring an interface to place calls ··················································································· 171
Configuring an interface to receive calls ················································································· 172
Configuring bundle DDR ············································································································ 173
Configuring a dialer interface to place calls············································································· 173
Configuring a dialer interface to receive calls ·········································································· 174
Configuring attributes for a dialup interface ··················································································· 175
Configuring MP for DDR ············································································································ 176
Configuration restrictions and guidelines ················································································ 177
Configuration procedure ····································································································· 177
Configuring PPP callback ·········································································································· 177
Configuring the callback client ····························································································· 178
Configuring the callback server ···························································································· 179
Configuring ISDN caller number callback ······················································································ 180
Overview ························································································································· 180
Configuration restrictions and guidelines ················································································ 181
Configuring a callback server by using traditional DDR ····························································· 181
Configuring a callback server by using bundle DDR ································································· 182
Configuring auto-dial················································································································· 182
Configuring dynamic route backup through DDR ············································································ 182
Creating a dynamic route backup group ················································································· 183
Assigning a dialup interface to a dynamic route backup group ··················································· 183
Setting the secondary link disconnection delay ······································································· 184
Setting the warm-up timer for dynamic route backup ································································ 184
Disconnecting a dialup link ········································································································· 184
Displaying and maintaining DDR ································································································· 185
DDR configuration examples ······································································································ 185
PSTN-based traditional DDR configuration example ································································ 185
PSTN-based bundle DDR configuration example ···································································· 187
ISDN-based traditional DDR configuration example ································································· 191
ISDN-based bundle DDR configuration example ····································································· 193
MP for DDR configuration example ······················································································· 196
ISDN caller number callback configuration example ································································· 198
Router-to-router PPP callback configuration example ······························································· 199
Router-to-PC PPP callback configuration example ··································································· 202
Windows server-to-router PPP callback configuration example ·················································· 204
Configuration example for circular dial string backup and Internet access ···································· 207
Dynamic route backup for traditional DDR configuration example ··············································· 212
Dynamic route backup for bundle DDR configuration example ··················································· 214
Configuration example for dynamic route backup for multiple networks ········································ 217
Troubleshooting ······················································································································· 220
Failure to establish a dialup connection ················································································· 220
Ping failure ······················································································································· 220
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