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Barracuda NextGen Firewall X

Instable PPTP connections

  • Type: Knowledgebase
  • Date changed: 5 months ago
Solution 00005269 

This solution applies to:
- NG Firewall firmware versions 4.2.x, 5.0.x, 5.2.x
- netfence firmware versions 4.2.x


In some cases you can observe lags of an already established PPTP connection, although the PPTP tunnel seems to be stable and established.



If the bind-IP of the NG Firewall VPN service differs from the VPN-Point of Entry IP (IP where the PPTP clients terminate), the NG Firewall VPN service handles PPTP connections unstable.

- Do not use a Local Redirect rule to forward PPTP connections to the PPTP server IP.
- Inside the L2TP/PPTP configuration, the PPTP Bind IP has to be the IP address of the VPN Point of Entry (IP where the PPTP clients terminate)


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