MT gateway try to route other ip range

RouterOS General
1

hi guys…
I have a network setup that sdsl modem and WAN and LAN port of MT box is on the same switch so I can connect directly to sdsl modem with my IP address. but when I do the traceroute it will pass through the MT box even though I have put SDSL IP as my PC’s Gateway…

its quite weird but I don’t know why is it happening

any help is highly appreciated

2

Post some configs… IP configurations of all interfaces, routing tables of all devices

3 
[admin@MikroTik] ip address> pr
Flags: X - disabled, I - invalid, D - dynamic 
 #   ADDRESS            NETWORK         BROADCAST       INTERFACE
 0   10.1.1.1/24        10.1.1.0        10.1.1.255      hotspot  
 1   211.24.149.42/29   211.24.149.40   211.24.149.47   wan1     
 2   192.168.0.1/24     192.168.0.0     192.168.0.255   wan1




Flags: X - disabled, I - invalid, D - dynamic, J - rejected, 
C - connect, S - static, r - rip, o - ospf, b - bgp 
 #    DST-ADDRESS        G GATEWAY         DISTANCE INTERFACE
 0  S ;;; added by setup
      0.0.0.0/0          r 192.168.0.250   1        wan1     
 1 DC 211.24.149.40/29   r 0.0.0.0         0        wan1     
 2 DC 192.168.0.0/24     r 0.0.0.0         0        wan1     
 3 DC 10.1.1.0/24        r 0.0.0.0         0        hotspot




/ interface ethernet 
set wan2 name="wan2" mtu=1450 arp=enabled disable-running-check=yes auto-negotiation=yes \
    full-duplex=yes long-cable=no speed=100Mbps disabled=yes 
set hotspot name="hotspot" mtu=1450 arp=enabled disable-running-check=yes auto-negotiation=yes \
    full-duplex=yes long-cable=no speed=100Mbps disabled=no 
set wan1 name="wan1" mtu=1450 arp=enabled disable-running-check=yes auto-negotiation=yes \
    full-duplex=yes long-cable=no speed=100Mbps disabled=no 
/ interface wireless align 
set frame-size=300 active-mode=yes receive-all=no audio-monitor=00:00:00:00:00:00 \
    filter-mac=00:00:00:00:00:00 ssid-all=no frames-per-second=25 audio-min=-100 audio-max=-20 
/ interface bridge port 
set wan2 bridge=none priority=128 path-cost=10 
set hotspot bridge=none priority=128 path-cost=10 
set wan1 bridge=none priority=128 path-cost=10 
/ interface l2tp-server server 
set enabled=no mtu=1460 mru=1460 authentication=mschap2,mschap1,chap,pap default-profile=default 
/ interface pptp-server server 
set enabled=no mtu=1460 mru=1460 authentication=mschap2,mschap1 keepalive-timeout=30 \
    default-profile=default
4

I realized that MT is trying to response any IP address (ARP) request to its mac address for example MT box try to pretend to be SDSL modem by sending its mac address as the SDSL’s mac address…

i tried to get ARP -A in windows box and I figured that the mac address for my SDSL modem is wrong and it is actually the MT interface MAC address…

I have no idea how to fix it… I have upgraded to 2.9.12 but it was the same so I downgraded back to 2.8.18 which was the most stable version for me.

5

That is very strange…

You don’t perhaps have a 00:00:00:00:00:00 or FF:FF:FF:FF:FF:FF static entry in the arp cache? Other than that… well yeah. That is strange. All I can think about is maybe a wrongly configured hotspot, but I don’t have to much experience in using those…

Perhaps someone else can shed some light.