Hi All,
Just trying to get my head around how to block an IP entering through the WAN onto a mail server on the LAN side.
For example the offending IP address is 5.188.206.123, which I wish to stop.
Viewing the various posts on this forum, I have implemented as below.. on outerOS 6.48
/ip firewall address-list
add address=5.188.206.123 list=blacklist
/ip firewall filter
add action=drop chain=input src-address-list=blacklist
I can see using Torch the packets coming in..
However, the mail server is still being hit.
Checking the counters on the Firewall/Filter Rules, the counter against the drop on blacklist is not incrementing and the mail server is still being hit.
Please advise
Thanks