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essides
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Posts: 26
Joined: Fri Mar 10, 2017 6:18 pm
Location: Murcia ( Spain )

ARP Between VPN

Tue Mar 24, 2020 6:08 pm

Hello,

I have some VPN clients ( PPTP , L2TP ) and I want they can find each other as in a LAN

How can I do it ?

Thanks you.
 
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bpwl
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Posts: 302
Joined: Mon Apr 08, 2019 1:16 am

Re: ARP Between VPN

Wed Mar 25, 2020 12:42 am

LAN access is over bridge. To have the VPN's on the VPN server connected via bridge, I assume you just set this default bridge in the "PPP profile", and use that profile in all PPTP and L2TP VPN .

More info (but different case) : https://wiki.mikrotik.com/wiki/Manual:B ... _bridging)
 
essides
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Topic Author
Posts: 26
Joined: Fri Mar 10, 2017 6:18 pm
Location: Murcia ( Spain )

Re: ARP Between VPN

Wed Mar 25, 2020 1:40 am

Yes, both VPN services use same profile with bridge option selected.

Selected bridge have arp-proxy selected.

Does it work with this config?

Final clients are using Windows OS, so I cant configure BCP protocol.

Thanks you.
 
kahid
just joined
Posts: 1
Joined: Wed Mar 25, 2020 10:07 am

Re: ARP Between VPN

Wed Mar 25, 2020 10:19 am

Yes, both VPN services use same profile with bridge option selected.

Selected bridge have arp-proxy selected.

Does it work with this config?

Final clients are using Windows OS, so I cant configure BCP protocol.

Thanks you.
Hi buddy, thanks for this thread, was facing similar issues as of now. Got it solved via this thread.

Regards,
K. Smith
Last edited by kahid on Thu Mar 26, 2020 10:38 am, edited 2 times in total.
Regards,
K. Smith
 
essides
newbie
Topic Author
Posts: 26
Joined: Fri Mar 10, 2017 6:18 pm
Location: Murcia ( Spain )

Re: ARP Between VPN

Wed Mar 25, 2020 4:22 pm

Yes, both VPN services use same profile with bridge option selected.

Selected bridge have arp-proxy selected.

Does it work with this config?

Final clients are using Windows OS, so I cant configure BCP protocol.

Thanks you.
Hi buddy, thanks for this thread, was facing similar issues as of now. Got it solved via this thread.

Regards,
K. Smith
How did you get it?

Cause my vpn clients can't see physical address each other
 
tdw
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Posts: 290
Joined: Sat May 05, 2018 11:55 am

Re: ARP Between VPN

Wed Mar 25, 2020 10:20 pm

If you use a conventional IP / layer 3 VPN, you have no access to the MAC / layer 2 information at the other end.

Proxy-arp allows a router to provide its own MAC address to allow communication between devices using the same subnet IP addresses but attached to differing physical networks, e.g. a local LAN and a VPN client. If you really need layer2 access you will have to use EoIP, possibly OpenVPN tunnel mode although I haven't tried the latter.

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