Two Networks, one gateway

RouterOS General
1

Router A
Bridge IP: 172.25.25.25 (bridged ports 3-5)
Interface 1 - to dsl modem
IP Interface 2 - 172.16.16.10 (conected to interface 1 Router B)
DHCP Server: 172.25.25.0/24 (assigned to the bridge)
NAT: SRCNAT PPOE Interface


Router B
Bridge IP: 172.30.30.30 (bridged Porte 2-5)
IP Interface 1 - 172.16.16.16 (conected to interface 2 Router A)
DHCP Server: 172.30.30.0/24 (assigned to the bridge)
DNS 172.16.16.10 - 8.8.8.8

Configuration Router A
Route 0.0.0.0 — PPOE Interface
Route 172.30.30.0/24 — 172.16.16.16

Configuration Router B
Route 172.25.25.0/24 — 172.16.16.10
Route 0.0.0.0 —172.16.16.10

The problem, i dont have internet on router B with 172.30.30.x addresses.

Can you help me?

2

route b needs a route
0.0.0.0/0 gateway 172.16.16.10

3

Do you realize that default route should be found at the host in broadcast domain?

4

@shiyiqiang08

Sory, i missed up to put on the post the default gateway of the router B, its made and still dont have internet?

5

can you ping 8.8.8.8 from route b?
if you can ,route set is ok
if not ,may be dns is not set correctly

6

Nope, the ping says destination net unreachable, but nslookup works fine

7

i update the configuration, i missed up some details that now are in the original post.

8

Anyway on router B add a masquerade without specifing the interface.

Scrnat → Masquerade

Regards.