peer to peer prerouting

RouterOS General
1

Hi, I have 2 ISPs and I want to use ISP1 for http connections and ISP2 for ftp+p2p (lots of clients with emule,bit-torrent)
Since for different routing I need routing-mark I tried everything - mark connections, mark packets, mark routing but still can’t reroute my p2p connections to go via ISP2. Any ideas?

p.s. first route is Destination=0.0.0.0/0 Gateway=ISP2 with routing-mark=all-p2p (marked already with mark-packets)
Second route is Destination=0.0.0.0/0 Gateway=ISP1

2

Set the gateway you wish to use for P2P as the default route.
Set routing mark for TCP traffic on port 80 to send it to the other gateway.

3

well i do that but every route that i add with some routing-mark - not working - dunno why!?!?

4

Here you are, next time try to post your ip configurations:

Adjust the values between “” :

/ip fire man
add chain=prerouting action=jump jump=markhttp in-interface=[YOUR LOCAL INTERFACE] dst-port=80 protocol=tcp passthrough=no
add chain=prerouting action=jump jump=markhttp in-interface=[YOUR LOCAL INTERFACE] dst-port=443 protocol=tcp passthrough=no
add chain=markhttp action=mark-connection new-connection-mark=http passthrough=yes
add chain=markhttp action=mark-routing new-routing-mark=http passthrough=no 
add action=return

/ip firewall nat 
add chain=src-nat action=src-nat to-address=[your ISP1 src Address] connection-mark=http comm="HTTP NAT"
add chain=src-nat action=masquerade comm="All Traffic"

/ip route
add dst-address=0.0.0.0/0 gateway=[YOUR ISP1 GATEWAY] routing-mark=http
add dst-address=0.0.0.0/0 gateway=[YOUR ISP2 GATEWAY]

regards.

5

Thank the above idea.

I really want to known whether the rules can work well?

6

… there’s only one way to find out :laughing: