Cisco SA 540 User's Guide download pdf (Page 2)

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Table of contents

1 Introduction .................................................................................................................................................... 3

1.1 Goal of this document ............................................................................................................................ 3

1.2 VPN Network topology ........................................................................................................................... 3

1.3 Cisco SA 520W VPN Gateway .............................................................................................................. 3

1.4 Cisco SA 520W Security Appliance VPN Gateway product info ............................................................ 3

2 Cisco SA 520W Security Appliance VPN configuration ................................................................................. 4

2.1 Preparation ............................................................................................................................................ 4

2.2 Cisco SA 520W Settings ........................................................................................................................ 4

3 TheGreenBow IPSec VPN Client configuration ............................................................................................. 6

3.1 VPN Client Phase 1 (IKE) Configuration ................................................................................................ 6

3.2 VPN Client Phase 1 Advanced settings ................................................................................................. 7

3.3 VPN Client Phase 2 (IPSec) Configuration ............................................................................................ 7

3.4 Open IPSec VPN tunnels ....................................................................................................................... 8

4 Tools in case of trouble .................................................................................................................................. 9

4.1 A good network analyser: Wireshark ..................................................................................................... 9

5 VPN IPSec Troubleshooting ........................................................................................................................ 10

5.1 « PAYLOAD MALFORMED » error (wrong Phase 1 [SA]) ................................................................. 10

5.2 « INVALID COOKIE » error .................................................................................................................. 10

5.3 « no keystate » error ............................................................................................................................ 10

5.4 « received remote ID other than expected » error ................................................................................ 10

5.5 « NO PROPOSAL CHOSEN » error .................................................................................................... 11

5.6 « INVALID ID INFORMATION » error .................................................................................................. 11

5.7 I clicked on “Open tunnel”, but nothing happens. ................................................................................. 11

5.8 The VPN tunnel is up but I can’t ping ! ................................................................................................. 11

6 Contacts ....................................................................................................................................................... 13

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Cisco SA 540 User's Guide Page 2

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