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Edgio / vflow

Enterprise Network Flow Collector (IPFIX, sFlow, Netflow)
http://www.verizonmedia.com
Apache License 2.0
1.09k stars 223 forks source link

Fix ipfix buffer use and mirror test #197

Open themiron opened 6 months ago

themiron commented 6 months ago

Without raw capabilities test does nothing, but with them fails later on buffer put with short crafted body or IPv4 send permission in IPv6-only environment

swills commented 1 month ago

The buffer fix test makes sense in ipfix_unix.go makes sense, I was able to reproduce that issue and confirm that change fixes it, but I did have to also set opts.IPFIXUDPSize inside the test.

I'm unsure about the changes to the test in ipfix_test.go. When I pull those in, I get a timeout on the test. I suspect this is an environment issue. I have IPv6 addresses setup and tried removing the v4 addresses on both loop-back and other interfaces in my test environment, but didn't have any luck. Can you explain more about your IPv6-only test environment that triggers this issue?