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I have a Router has 4 ethernet ports, eth0 to eth3, with OpenWRT inside and such configurations:

  • Interface lan1 involves only eth0, IP address 10.10.0.1/16
  • Interface lan2 involves only eth1, IP address 10.11.0.1/16

The route table auto generated by OpenWRT is:

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.10.0.0       *               255.255.0.0     U     0      0        0 eth0
10.11.0.0       *               255.255.0.0     U     0      0        0 eth1

So as you could see these two interfaces are different subnets.

When I ssh into the router I could ping both devices on 10.10.0.0/16 and 10.11.0.0/16. But when I was going to ping a device from 10.11.0.0/16 to 10.10.0.0/16 I only got bytes from 10.11.0.1: Destination Port Unreachable.

What I want to do is: be able to ping 10.10.0.0 from 10.11.0.0 and vice versa.

How could I achieve this?

jayatubi
  • 101

1 Answers1

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If the two devices on 10.10.0.0/16 and 10.11.0.0/16 are Windows devices, I don't believe they will accept inbound ICMP echo requests from a different subnet. You will likely have to create a custom rule through the Windows Firewall: https://technet.microsoft.com/en-us/library/cc972926(v=ws.10).aspx

Mark Riddell
  • 752