Panasonic NN46240-710 User Manual

Page 15

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Nortel Secure Router 8000 Series

Troubleshooting - VPN___________

Contents

1 L2TP troubleshooting.................................................................................................... 1-1

1.1 L2TP overview............................................................................................................................................. 1-2

1.1.1 Two typical L2TP tunnel modes......................................................................................................... 1-2

1.1.2 L2TP tunnel session setup...................................................................................................................1-3

1.2 VPDN troubleshooting on the L2TP............................................................................................................ 1-4

1.2.1 Networking environment.................................................................................................................... 1-4

1.2.2 Configuration notes.............................................................................................................................1-5

1.2.3 Diagnostic flowchart........................................................................................................................... 1-7

1.2.4 Troubleshooting procedures................................................................................................................1-9

1.3 Troubleshooting L2TP access to the Layer 3 VPN....................................................................................1-11

1.3.1 Networking environment.................................................................................................................. 1-11

1.3.2 Configuration notes...........................................................................................................................1-12

1.3.3 Diagnostic flowchart......................................................................................................................... 1-16

1.3.4 Troubleshooting procedure............................................................................................................... 1-16

1.4 Troubleshooting cases................................................................................................................................ 1-16

1.4.1 The session disconnects as soon as it is set up..................................................................................1-16

1.5 FAQs...........................................................................................................................................................1-18

1.6 Diagnostic tools.......................................................................................................................................... 1-20

1.6.1 Display commands............................................................................................................................ 1-20

1.6.2 Debugging commands.......................................................................................................................1-23

Issue 5.3 (19 January 2009)

Nortel Networks Inc.