Re transmitting Network

Dear All

Kindly guide me through this scenario

How do i block the use of router to illegally retransmit my network

Here i have noticed some customers use routers one end connected to my network and using it as a router the enable DHCP thereby having access through my link to their place

I will prefer it if i can control this

Thank you

Set the TTL of packets going into the customer network to 1 in mangle postrouting.

/ip firewall mangle add chain=postrouting out-interface=toCustomer action=change-ttl new-ttl=set:1

Thanks alot

will try and get back to you soon

Please one quick question

After i apply the mangle settings and i want to give access to subcribers who paid for acces for 2-3 computer

What would you suggest

Thanks alot

Make an address list that contains the IPs that can be assigned to routers:

/ip firewall address-list
add list=routersOK address=10.0.0.30
add list=routersOK address=10.0.0.50

Then change the TTL rule to not apply the new TTL to IPs on that address list:

/ip firewall mangle add chain=postrouting out-interface=toCustomer dst-address-list=!routersOK action=change-ttl new-ttl=set:1

Thanks Alot