Mikrotik RB750 Base Setup

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KinsZA

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Hello

I have a old RB750 that for the life of me I cannot remember what to setup and googling has left me in some circles. I really just want the following.

1) PPPoE Client to ISP
2) DHCP Server
3) Being able to do the equivalent of port forwarding on an adsl router.
4) Run it on a non standard Mikrotik IP range (not the .88)
5) Have a PPTP client to work, work in turn has a vpn to a different ip range when I would like to be able to seamlessly access too.

Can anyone help me out here ?
 
See config posted in this thread ...

http://mybroadband.co.za/vb/showthread.php/475560-Mikrotik-Routerboard-and-PPPOE-please-help

For port forwarding add something like ...


/ip firewall nat
add action=dst-nat chain=dstnat dst-port=55555 in-interface=ADSL protocol=tcp to-addresses=192.168.1.10 to-ports=55555

For dial on-demand PPTP client to MS Server add the following ...

/interface pptp-client
add allow=mschap1,mschap2 connect-to=123.123.123.123 dial-on-demand=yes disabled=no max-mru=1392 max-mtu=1392 name=MyVPN password=PPPPP user="DOMAIN\UUUUU"

/ip firewall nat
add action=masquerade chain=srcnat out-interface=MyVPN

/ip route
add distance=1 dst-address=111.111.111.111/24 gateway=MyVPN

Note stuff in bold should be changed to your needs.
 
Last edited:
Hi

I replied in that thread about your first step but to keep things together...

--------------
/interface ethernet
set 0 master-port=none
set 1 master-port=ether1
set 2 master-port=ether1
set 3 master-port=ether1
set 4 master-port=ether1
-------------
I have a RB750 and it does not support the ether1 being a master, I can link 2-5 but 1 is the "WAN" interface for it, what would I be doing in this case.
 
port 0 = wan
port 1 = master
port 2 = slave of 1
port 3 = slave of 1
port 4 = slave of 1

So to do that

/interface ethernet
set 0 master-port=none
set 1 master-port=none name=ether1
set 2 master-port=ether1
set 3 master-port=ether1
set 4 master-port=ether1
 
So I wouldnt be using the port intended for dialing out for anything ? just port 2-5
 
Well it is an example, in which the port 0 is connected to an adsl modem, so you don't need to link layer2 on that port to the rest of the ports, unless you want to still be able to dial pppoe from the pcs.
 
Ok I Renamed the current "Wan Port" to WAN, ran your, renamed the other ports ether2-4 and set the interface for the pppoe client as WAN.

Will test when I get home
 
KinsZA said:
Ok I Renamed the current "Wan Port" to WAN, ran your, renamed the other ports ether2-4 and set the interface for the pppoe client as WAN.
Click to expand...
If you're using the config I posted in the other thread, it assumes a default empty config. If you're modifying an existing one, then my "one arm" config requires the following naming/mapping ...

/interface ethernet
set 0 master-port=none name=ether1
set 1 master-port=ether1 name=ether2
set 2 master-port=ether1 name=ether3
set 3 master-port=ether1 name=ether4
set 4 master-port=ether1 name=ether5

With this config you can plug the ADSL modem (& other IP PCs/devices) into any port, there is no restriction.
 
Last edited:
If I have a pppoe connection going with the router and cant ping an address from winbox's tools can I assume that somethings wrong, its a kinda old router and not sure if its giving issues or not.
 
Link Established

EDIT: I dont have a single TX or RX packet on it though
 
KinsZA said:
It Shows-
Status: link established
Click to expand...
Not sure if thats actually up, mine has always said connected (also in the log). Maybe different message due to really old version, I'm on the latest release version v5.21. Does the status tab show IP addresses for the Local & Remote Address?
 
5.21 here too, in status there is nothing, all blank except idle time which is on 00:00:00 and Active Links which is 0
 
KinsZA said:
5.21 here too, in status there is nothing, all blank except idle time which is on 00:00:00 and Active Links which is 0
Click to expand...
PPPoE session definitely not up then.

Either RB can't communicate to the modem, or what the RB is sending the ISP via the modem is not right? Can you establish a PPPoE session from a PC connected to the modem with the same credentials as configured on the RB?
 
Thanks a lot, turns out my netgear was being a pain, switched to linksys and alls good.

Just a FYI apparently the RB750 has a actual hardware restriction on their "gateway" interface being a master or slave, so I have the exact configuration you mentioned except my ether 2 is master with 3,4,5 slaved to it and ether 1 is on its own. I keep ether 1 and ether 2 on different ip ranges.
 
KinsZA said:
Thanks a lot, turns out my netgear was being a pain, switched to linksys and alls good.

Just a FYI apparently the RB750 has a actual hardware restriction on their "gateway" interface being a master or slave
Click to expand...
There is no real "gateway" interface. Its just what that port is named in your current config. Rename the port to be "ether1" only ...

/interface ethernet
set 0 master-port=none name=ether1

... then all the master-port=ether1 references on the other interfaces should work.
 
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