Sagemcom DSL + Mikrotik hexS

RouterOS Beginner Basics
1

Hello!

I have a problem setting up Mikrotik with DSL modem.

  1. If i use quick setup then the client connected to the Mikrotik can connect to the internet
  2. After this, if i change (set from dhcp assigned) the IP on Mikrotik ether2 interface to the providers fix ip settings, internet connection is lost

I suspect that some default route problem may present, but i am totally new in Mikrotik world (router OS) and i have no idea how i need to set up my router.

Some informations:

  1. for test purpose i’ve tried direct connection from my PC to the modem. this works correctly with my fix ip address - OK, WORKING

Sagemcom DSL modem/router
|
PC (with fix IP and default gateway settings)



2. i tried to do the same with Mikrotik - OK, WORKING

Sagemcom DSL modem/router (dhcp server 192.168.1.1)
|
Mikrotik (IP given by Sagemcom dhcp 192.168.1.100, on bridge interface dhcp server 192.168.88.1)
|
PC (IP given by Mikrotik DHCP)


3. when i tried to change the Microtik IP to my fix IP settings - ERROR, NO INTERNET - WHY?

Sagemcom DSL modem/router
|
Mikrotik (FIX IP given 188.36.xxx.zzz, on bridge interface still dhcp server 192.168.88.1)
|
PC (IP given by Mikrotik DHCP)

I think i miss some step on Mikrotik, buit what?
Or maybe any link to set up Mikrotik with DSL connection?

Thanks

2

Quickset assumes WAN connectivity on ether1 (you mentioned ether2 in the quoted line above). Lots of settings in default config depend on this. If you decide to use ether2 as connection to DSL modem, then it can be done but some additional changes are needed.
Also, when setting up static IP address (don’t forget to include proper subnet mask!), one has to manually enter also gateway address, upstream DNS server address (es), etc. I don’t think you can do it via Quickset … and after anything (and that’s just anything) is changed outside Quickset, one must never ever use Quickset again. … no, don’t even think about it …