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List:       tcpdump-workers
Subject:    [tcpdump-workers] virtual interface with macvlan [self-answer]
From:       Hyun Yoo <easetheworld () gmail ! com>
Date:       2016-01-29 8:41:54
Message-ID: CAJzQz-FZ+TtutJ+yPnUNpdHCz99+Jd032emQKZaexOznY5-O5w () mail ! gmail ! com
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I found the reason by myself.
Libpcap uses SIOCGIFINDEX ioctl
and according to linux_kernel/net/core/dev_ioctl.c, COLON(':') in interface
name is not supposed to be in a name for macvlan.
Anything after colon is ignored.
Capturing for eth1:2 is same as capturing eth1.
Use eth1_2 instead of eth1:2 then problem solved.
I wonder there is any document about this.
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