Hello

I have a problem with my RB450G with RouterOS 4.10.

I have a Domain Name where all records lead to my Public IP, where I e.g. have a Web Server.
All external users can get access to my Web Server without any problem. So my routing, DNS and NAT I okay.

But I have at problem when I have a machine on my local network witch tried to get access to my Web Server via my domain name. Then I can’t get access to my Web Server, I can only get access by the Internal IP of the Web Server.
Which is a big problem for me since I have a lot of domain names on the server so I have to be able to connect to the server with the correct domain names so that the Web Server can lead me to the correct Web Site via Host Header.

Before I was using a SmoothWall Firewall where this where no problem, so must be something with how RouterOS handles the traffic from LAN to WAN and back to LAN again.

Can someone help me how to solve this problem ?

Search the forum for "hairpin NAT" and you will find working solutions.

Thanks

Found a solution that worked with the following commands

ip firewall nat add chain=dstnat action=dst-nat to-addresses=192.168.200.101 protocol=tcp dst-address=!192.168.200.0/24 dst-address-type=local dst-port=80

ip firewall nat add chain=srcnat action=masquerade src-address=192.168.200.0/24 out-interface=Port1_WAN1

ip firewall nat add chain=srcnat action=masquerade protocol=tcp src-address=192.168.200.0/24 dst-port=80

Anyway the right solution is to put 2 network adapters in the server, 1 for LAN and 1 for WAN. All others are for clowns.

The number of network adapters has absolutely nothing to do with this issue.