Routing problem

RouterOS General
1

I have 2 RB951G, let’s call it A and B.
RouterA:

  • ether1: wan
    -ether2-5: lan with dhcp server (192.168.10.0/24)

RouterB:
-ether1-2: bridge received ip from routerA (192.168.10.254/24)
-ether3-5: lan with dhcp server (172.16.10.0/24)

client with ip 192.168.10.0/24 can’t ping client with ip 172.16.10.0/24 because they don’t have routes. After routing them (Dst. 172.16.10.0/24 , Gw.192.168.10.254) ip 192.168.10.0/24 can ping gateway 172.16.10.1 but still can’t ping client 172.16.10.0/24. Although client with ip 172.16.10.0/24 can ping client with ip 192.168.10.0/24 just fine.
Did i do something wrong?
Thanks in advance and sorry for my bad english.

2

Anyone :frowning:(

3

are you using any NAT on the second router?
How about firewall, on both routers and the destination client?

4

the 2nd router don’t have any NAT, try to add once but it’s the same result.
There is no firewall rules on both routers

5

Can you please share your 2 configs.

6

Maybe you must add rule to forward chain?

7

If it’s a home version Windows pc you’re trying to ping, the default Windows firewall doesn’t allow ping responses to other subnets. Try temporarily disabling the firewall.

8

you are in double nat, generally not good to surf with these, in any case you can try to add route from 172.x Lan to return icmp.

9

Hi,
sorry for the late reply,
Here is my 2nd router config
***Router2:

-Bridge1 received ip from router1 (192.168.1.8 )
-Bridge2 created dhcp server and has 1 client (192.168.20.252)
***Router1:

-Try to ping router1 to client 192.168.20.252 but time out.
-Ping gateway 192.168.20.1 just fine

10

Already disabled but still not work =.=!!



Could you pls show me how to do it :frowning:

11

try to add:

172.16.10.0/24 gate 192.168.10.x ( your gateway )

12 



chain=forward action=accept src-address=0.0.0.0 dst-address=172.16.10.0/24 log=no log-prefix=""
13

Does your DHCP supply gateway address?

14

already did it in router1. After route i can ping 172.16.10.1 but can’t ping client (ex.172.16.10.252)

15

i’ll try it later tks.

yes it is

16

I would first disable all firewall rules to see how that goes (maybe only let exist the masquerade rule on RouterA to have internet connection)

17

Solved,
put my NAT rule masquerade for src.address 172.16.10.0/24 in router 2 to the top (just notice it behind other nat rules so it won’t work.) and it work like a charm. Gotta note it =.=!!
Thanks you guys for helping me all this time :slight_smile:

18

Good to hear you solved it, nevertheless I am curious about your config, because in one of the first posts you stated there was no NAT on RouterB

19

yes i said that i tried to add and then remove NAT but there is no difference between 2 options. Turn out after add NAT i have to move it to the top so the rule can work properly :slight_smile: