I am new to nft commands. I wish to use the map feature for port
forwarding. What I want to achieve is the following
Sftp incoming to port 2222 on the public IP to be port forwarded to
private IP on port 22. So what I found in the docs is this.
% nft add map nat foo { type inet_service : ipv4_addr . inet_service \; }
% nft add element nat foo { \
1100 : 192.168.1.2 . 5061, \
1101 : 192.168.1.3 . 5061, \
1400 : 192.168.1.4 . 5061 \
}
% nft add rule nat pre ip protocol tcp dnat ip addr . port to tcp dport
map @foo
So when I issue the first command I get the following error:
Error: unqualified mapping data type specified in map definition
When I issue the command: nft add map nat foo { type inet_service :
ipv4_addr \; }
It works just fine. I am at a loss as to why this is happening. The
reason I need the mapping is I need to add and remove port forwarding
rules easily with a simple command.
Any help would be greatly appreciated.
Brad
