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Opened 9 years ago

Closed 7 years ago

Last modified 5 years ago

#908 closed enhancement (fixed)

Allow client-to-client access

Reported by: JonTheNiceGuy <jon@…> Owned by:
Priority: normal Milestone: Firmware 2.3.7.0
Component: fon-plugin-openvpn Version: 2.3.6.1 (Gari jr.)
Severity: normal
Cc: Hardware: both

Description

It should be possible to specify that the VPN can be client-to-client. This change would be made by performing the following amendments to the /etc/config/openvpn file

list 'push' 'route 10.8.0.0 255.255.255.0'
list 'push' 'dhcp-option DNS 10.8.0.1'
option 'max_clients' '10'
option 'client_to_client' '1'

Attachments (1)

fon_c2c.diff (1.6 KB) - added by jon@… 9 years ago.
In line with the recommendations made in response to my original ticket, I have attached a patch which should resolve this ticket, and permit client to client connections over the VPN.

Download all attachments as: .zip

Change History (8)

comment:1 Changed 9 years ago by matthijs

  • Hardware changed from 2.0n (FON2300) to both
  • Milestone set to Firmware 2.3
  • Severity changed from unknown to normal
  • Status changed from new to infoneeded

Why is the DNS option needed for this?

Isn't there a way to generate the required push route option automatically?

Why did you add the max_clients option?

This would probably require a change in the luci interface, so this'll be post-2.3.7.0 work (though a patch could always speed things up! :-)

comment:2 Changed 9 years ago by JonTheNiceGuy <jon@…>

Curses, I knew I did too much in this one!

OK, scrap the DNS option - I forgot that OpenVPN doesn't populate the hosts table with the connected peers.

The push route won't occur unless you specify it. The configuration file already manually specifies the subnet of allocatable addresses, hence using that same subnet size as the route back.

I've increased the max_clients to 10 as 2 is simply not enough to allow client-to-client connections, unless you're only planning on having two devices that can perform this role (and I think one is taken up by the Router automatically... although I might be wrong there!)

I've never used Luci before, so I might struggle with getting this in, but sure, I'll give it a try! It might be a couple of weeks. When is the feature-freeze due for 2.3.7.0 (if at all)?

comment:3 Changed 9 years ago by matthijs

  • Status changed from infoneeded to confirmed

The release plans are a bit sketchy, but I hope to get a beta out within weeks...

Ok, so the DNS option is out :-) (Additionally, this only works out of the box Windows, other systems need custom scripts...)

Increasing max_clients seems reasonable, perhaps also as a luci option..

Feel free to drop by on IRC if you're going to undertake this, I'll be happy to answer your questions and point you in the right directions.

Changed 9 years ago by jon@…

In line with the recommendations made in response to my original ticket, I have attached a patch which should resolve this ticket, and permit client to client connections over the VPN.

comment:4 Changed 7 years ago by matthijs

  • Milestone changed from Firmware 2.3 to Firmware 2.3.7.0
  • Status changed from confirmed to testing-fix
  • Summary changed from Amend OpenVPN Server Config Scripts to Allow client-to-client access

Since I'm applying OpenVPN patches for 2.3.7.0 now, I'll include this one as well.

I removed the max_clients change, since that's handled by #1178 already. I also slightly restructured some code.

This patch is now in my local tree, I'll push it out to SVN when I finish testing later this week.

comment:5 Changed 7 years ago by matthijs

It actually seems that the push option is not needed, since the --server option automatically adds it. From openvpn(8):

For example, --server 10.8.0.0 255.255.255.0 expands as follows:

   mode server
   tls-server
   push "topology [topology]"

   if dev tun AND (topology == net30 OR topology == p2p):
     ifconfig 10.8.0.1 10.8.0.2
     if !nopool:
       ifconfig-pool 10.8.0.4 10.8.0.251
     route 10.8.0.0 255.255.255.0
     if client-to-client:
       push "route 10.8.0.0 255.255.255.0"
     else if topology == net30:
       push "route 10.8.0.1"

comment:6 Changed 7 years ago by matthijs

  • Resolution set to fixed
  • Status changed from testing-fix to closed

(In [2181]) luci-openvpn: Allow enabling client-to-client access.

Thanks to Jon Spriggs for this patch.

Closes: #908

comment:7 Changed 5 years ago by RichardPt

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