access modem infront of mikrotik

RouterOS General
1

hi

i have a question (i already succeded in doing this, but i forgot to save config and now i’m lost)

  • rb2011uas-2hnd
  • port1 is connected to modem who has ip 192.168.1.1, and i have pppoe interface on it
  • port 2 to 4 are in bridge mode, network 192.168.1.0/24, mikrotik has ip 192.168.1.2
  • internet and everything works no problem (nat masquerade), dhcp server is on lan bridge (192.168.1.32-192.168.1.64)

how do i get to access to modem page? i know that i can change the modem ip to different subnet and set up masquerade..
but i already managed to get to modem (added ip on port1 eg 192.168.200.200, and fiddled on ip firewall rules - but i dont remember what was it)

thank you

2

dukedl
I have similar setup in one place.

                                    LAN
                                   /        
ISP -- Zyxel(bridge) -- WAN-Mikrotik
  1. Zyxel: 192.168.1.1
  2. Mikrotik Wan: add 192.168.1.2
  3. Try to ping from Mikrotik Zyxel
  4. I use this via VPN and I added route for this. I you use this from LAN it should work without additional route.

Aha, sorry. I used different IP set for LAN. I think you can change LAN IP set(IP, DHCP, Firewall, NAT) or only on Modem.

3

yeah, it isn’t working…i cannot ping the modem from mikrotik (interface: lan_bridge)

if i ping it from wan port (port1) works like a charm..
but i do not have access to wan port directly, because it has pppoe interface on it and so it is not in lan_brige

4

Put ehter1 into the bridge and put the pppoe client on the bridge too. Your modem is on the same broadcast domain (IP subnet) as your local lan, so therefor there can’t be a router in between and the need to be on the same Layer2 segment.