ZyXEL Communications ZyWALL Troubleshooting Manual page 11

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 Check the VPN settings on the ZyWALL and make sure they
match the software client configuration.
 Check the ZyWALL's IKE logs to make sure it is receiving a request
to establish the VPN. By default the ZyWALL is programmed to
allow VPN traffic, if the IKE logs on the ZyWALL do not show any
IKE connection attempts try disabling the ZyWALL's Firewall/Policy
Control. If still no luck, check with your ISP to make sure they are
not blocking ports on the service end.
To disable the ZyWALL's firewall/policy control, go to:
Configuration  Firewall
Policy  Policy Control
 Verify the firmware is up to date and contact tech support for
further assistance. To check the current version of firmware on
the ZyWALL go to Maintenance  File Manager  Firmware
Package
OR Configuration  Security
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