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About Me

MTIN is a full service consulting firm with over 15 years of experience. We specialize in ISP networks.  Other clients include enterprise, education, government, and SOHO.  We have Mikrotik, Cisco, and other certified engineers on staff.

Connection Limits on Mikrotik

I recently had an instance where I had to re-visit adding connection limits to a CPE running lots of connections.  they were probably P2P. Here is the code we added:

/ip firewall filter
add chain=forward action=log tcp-flags =syn protocol=tcp connection-limit=100,32 log-prefix=”CONN_LIMIT:” comment=”connection limit” disabled=no
add chain=forward action=drop tcp-flags =syn protocol=tcp connection-limit=100,32 comment=”connection limit” disabled=no

What this code does is this:
1.Limits [...]

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