I've been trying to setup an Ethereum node using geth inside a Zedboard which has Arch Linux ARM installed inside it. I am using the latest version of the binaries for the ARM7 version available in the official page (1.10.15). This is intended to be a proof of authority network using Clique as consensus mechanism. In another PC in the LAN network, I ran the bootnode by:
./bootnode -nodekey "./PoA/bootnode/boot.key" -verbosity 7 -nat extip:<My_IP> -addr <My_IP>:30301
And within the Zedboard I ran:
./geth --networkid 1234 --nat extip:<Zedboard_IP> --allow-insecure-unlock --datadir "./PoA/node1/data" --bootnodes <enode_url>@<My_IP>:30301 --port 30303 --ipcdisable --syncmode full --http --http.corsdomain "*" --http.port 8545 --unlock <public_address> --password ./PoA/node1/password.txt --mine
However, it is unable to connect to the bootnode, and the terminal log obtained is this:
TRACE[02-10|10:10:13.273] >> PING/v4 id=6bfb333b9895bf0f addr=<Zedboard_IP>:30303 err=nil
TRACE[02-10|10:10:14.205] << FINDNODE/v4 id=6bfb333b9895bf0f addr=<Zedboard_IP>:30303 err="unknown node"
TRACE[02-10|10:10:14.275] << FINDNODE/v4 id=6bfb333b9895bf0f addr=<Zedboard_IP>:30303 err="unknown node"
TRACE[02-10|10:10:14.707] << PING/v4 id=6bfb333b9895bf0f addr=<Zedboard_IP>:30303 err=nil
TRACE[02-10|10:10:14.707] >> PONG/v4 id=6bfb333b9895bf0f addr=<Zedboard_IP>:30303 err=nil
TRACE[02-10|10:10:14.708] >> PING/v4 id=6bfb333b9895bf0f addr=<Zedboard_IP>:30303 err=nil
TRACE[02-10|10:10:15.710] << FINDNODE/v4 id=6bfb333b9895bf0f addr=<Zedboard_IP>:30303 err="unknown node"
Other nodes inside the LAN network (ubuntu 18.04) discover each other and can sign blocks and call functions inside the network. Any idea of what could be the issue here? I have alreadt tried to assign --cache and syncmode to snap to the Zedboard, but it is still not working. Thanks in advance.
It turns out it is required for all machines in the network to share the same NTP server (or at least have the same synchronization in their system clocks).