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Message-ID: <9753a024-5499-af09-ccc2-21c3c614ea64@gmail.com> Date: Wed, 26 Oct 2022 15:41:42 +0300 From: George Shuklin <george.shuklin@...il.com> To: nicolas.dichtel@...nd.com, netdev@...r.kernel.org Subject: Re: Bug in netlink monitor On 26/10/2022 11:34, Nicolas Dichtel wrote: > Le 25/10/2022 à 13:18, George Shuklin a écrit : >> I found that if veth interface is created in a namespace using netns option for >> ip, no events are logged in `ip monitor all-nsid`. >> >> Steps to reproduce: >> >> >> (console1) >> >> ip monitor all-nsid >> >> >> (console 2) >> >> ip net add foobar >> >> ip link add netns foobar type veth >> >> >> Expected results: >> >> Output in `ip monitor`. Actual result: no output, (but there are two new veth >> interaces in foobar namespace). >> >> Additional observation: namespace 'foobar' does not have id in output of `ip net`: > This is why. > https://man7.org/linux/man-pages/man8/ip-monitor.8.html > > " If the all-nsid option is set, the program listens to all network > namespaces that have a nsid assigned into the network namespace > were the program is running" > > You can assign one with: > ip netns set foobar auto > Oh, I missed that. But I think it's making things a bit odd, because there are network events in the system which are not visible in `ip monitor` (no matter what options are set). Are there a way to see _all_ network events?
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