Opened 12 years ago
Closed 6 years ago
#10846 closed enhancement (wontfix)
GRE protocol support for VPN working over NAT
| Reported by: | trollix | Owned by: | |
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| Component: | network/NAT | Version: | VirtualBox 4.1.20 |
| Keywords: | GRE, NAT, VPN | Cc: | |
| Guest type: | all | Host type: | all |
Description
Please add GRE Protocol support. Dont say,that its impossible! VmWare Workstation(not Player) has it! VPn works great over NAT in VmWare Workstation(not Player). But I like VirtualBox much more. VirtualBox sometimes work much,much faster,then VmWare Workstation. I dont want to use VmWare instead of VirtualBox. I know that thousands of people asked you for adding this protocol. Please hear/listen us!
Change History (6)
comment:1 by , 12 years ago
comment:2 by , 12 years ago
| priority: | critical → major |
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comment:3 by , 10 years ago
| Type: | defect → enhancement |
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comment:4 by , 10 years ago
Is there hope on getting GRE support in VirtualBox's NAT?
BTW: A workaround is to use bridged networking.
comment:5 by , 10 years ago
Very little. The NAT engine in VirtualBox is purely done by mapping the traffic to the unprivileged socket API, which only supports TCP/UDP.
Which VPN products work only with GRE?
From what I can tell it's mostly the obsolete PPTP stuff (see https://www.schneier.com/pptp-faq.html). L2TP/IPSec definitely can deal with TCP/UDP transports (GRE is just one of many options), SSTP is TCP based, and OpenVPN can deal with both TCP and UDP.
comment:6 by , 6 years ago
| Resolution: | → wontfix |
|---|---|
| Status: | new → closed |
"NAT" in VirtualBox is not really a NAT, more like automagic socks that uses host's sockets, as Klaus said. In theory GRE support may be added, but the amount of effort to support this corner case vs. its usefulness (given available alternatives) makes it just not worth the effort.
This should be labelled as an enhancement not a defect. I can't really vouche for its usefulness anyhow.