Hi everyone,
I'm having difficulty getting site to site IPsec to work properly with a Mikrotik device.
Both LANs use the same class 192.168.99.0/24 and to configure the Sophos (SG115 SFOS 20.0.0 GA-Build222) I followed these instructions: https://docs.sophos.com/nsg/sophos-firewall/19.0/Help /en-us/webhelp/onlinehelp/AdministratorHelp/SiteToSiteVPN/HowToArticles/S2sVPNIPsecConnectionPBVPNNATSameSubnets/index.html
The tunnel is established correctly, but if I try to ping a remote host (ex. 10.10.99.1) from the Sophos LAN, I get timeouts.
However, if I try to ping a host behind the Sophos from the Mikrotik I get a response and at that point the ping from the host behind the Sophos to the remote LAN also starts to work.
In the IPsec configuration I enabled the NAT option
![](/resized-image/__size/1280x960/__key/communityserver-discussions-components-files/126/pastedimage1715955576946v3.png)
Thanks to anyone who can help me
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