add option to listen on loopback only #44
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scope
Use
-O
to listen on loopback only – with keeping AFI selection by-4
/-6
.I guess it would be more valuable to add option to define listening address, but for my use-case listening on any vs loopback is enough and I see this patch as a good start.
verification
I expect no behavior change if
sflowtool
is run w/o-O
. Output ofnetstat -anpl | fgrep sflow
is attached for verification.listening on any
sflowtool
sflowtool -4
sflowtool -6
listening on loopback only
sflowtool -O
sflowtool -4 -O
(or-4O
)sflowtool -6 -O
(or-6O
)