Host: Windows 10 64-bit
Guest: Ubuntu 16.04 32-bit
Networking: Wireless. Home network.
Host can ping Guest, and Guest can ping Host. Guest can also ping router. However, when I ping from my Guest to other hosts in LAN (when using bridged networking), the error returned is:
From <Guest's IP address> Destination Host Unreachable
I used Wireshark to troubleshoot and I saw the ARP to be like
Source: Host's MAC, Destination: Router, <Host's IP address is at Host's MAC> Source: Guest's MAC, Destination: Router, <Guest's IP address is at Guest's MAC> Source: Host's MAC, Destination: Router, <Guest's IP address is at HOST's MAC>
So, there is a duplicate IP! My guest is unable to get the ARP reply from the other hosts in the LAN. I checked it with arp -a in the guest, and it is indeed incomplete for the other hosts in the LAN.
Do you guys have any idea?
ADDITIONAL INFO: The Guest is able to miraculously ping other hosts in the LAN in the afternoon, but then it could not.