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ssxp
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Joined: Thu Dec 13, 2018 8:47 pm

Mikrotik VPN IPSEC behind nat

Thu Dec 13, 2018 9:30 pm

Hi, thanks in advance!
I have two offices to connect with a VPN; in the first office I have only one public IP (1.1.1.1), so there is a NAT from ISP router to my RB3011. In the other office I have eight public IP, so the ISP router does not do NAT, and I can use the public IP of the my RG750Gr3 (2.2.2.2).
LAN schema VPN.JPG
Who HELP me to configure a site to site VPN??? (IPsec / Policies, Policy Proposals and Peers; NAT rules).
THANKS!!!!
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satman1w
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Re: Mikrotik VPN IPSEC behind nat

Mon Dec 17, 2018 1:36 pm

Have you tried to set up a vpn client in office 1 and coonect it to the office 2??

It should work without any problem...
 
klasaradnicka
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Re: Mikrotik VPN IPSEC behind nat

Mon Dec 17, 2018 4:50 pm

Hello,

First, when the packet sent from PC in site LAN (192.168 10.0/24) comes to ISP Router it has an IP address of 172.16.17.2 ? RB 3011 is doing NAT ? Am I correct ?
 
ssxp
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Re: Mikrotik VPN IPSEC behind nat

Sun Dec 23, 2018 12:56 pm

Yes, RB3011 is natted, it has not public IP address; all PCs in the LAN 192.168.10.0/24 have the same public IP address 1.1.1.1

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