>> The current code and proposed changes use 'netstat -ia' to find the node however if netstat needs to perform a reverse DNS query to resolve some interfaces this makes using uuid1 *really* slow especially when reverse DNS queries aren't set up correctly or timeout.
>>    mac = _find_mac_netstat('netstat', '-ia', b'Address', lambda i: i)
>>
>> Would it be possible to change the netstat call to add 'n' to the nestat options, i.e. _find_mac_netstat('netstat', '-ian', ...) to prevent netstat from attempting to resolve addresses?

> Sounds like an excellent idea. Gives me a reason to get started again. Thx!

I don't see this in PR GH-28009; should this change be made?