Old Tired Question: 'Not configured to listen on any interfaces'

[Simon Hobson]

Matt Causey wrote:

>If it's a hard requirement for reasons that are buried in legacy that's fine.

It is !
Back when the software was originally designed, non-ethernet-like 
interfaces weren't really considered. So it's fairly deeply ingrained 
in the code how it deals with interfaces - with certain assumptions. 
Similar issues affect running a relay agent where the link back to 
the server is not ethernet-like (such as a PPP link). It's to do with 
the way the server needs to be able to handle raw packets because you 
are dealing with clients that don't yet have an address.

AIUI, you can compile the software to use BPF to get around the 
requirement (but then you will not be able to serve local clients), 
and you'd also have to patch the code to not complain as it is doing 
now.

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Simon Hobson

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