capture interface not displayed

asked 2021-04-09 14:10:37 +0000

Hi, on my linux system (3.8.13-16.2.1.el6uek.x86_64) i used a command to attach another IP to an existing interface (eth1)

ifconfig eth1:0 172.16.67.254 netmask 255.255.0.0

I see the interface via (ifconfig ) and I can ping other devices on the network using ping -I eth1:0. My issue is when i try and capture frames from the device I don't see the interface displayed in wireshark. I do see Eth1 and i can capture frames on that interface.

answered 2021-04-09 14:29:00 +0000

grahamb

flag of United Kingdom of Great Britain and Northern Ireland

23835 ●4 ●976 ●227 https://www.wireshark.org

You haven't created an additional interface, you've just added an IP, so the interfaces list in Wireshark will still show the single interface.

If you hover over the interface in the list you should see all associated IP addresses for that interface.

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@grahamb, Thanks for the quick reply. I do see the additional IP in the list. I guess i expected to see eth1:0, but as you pointed out it's not another interface. I'll just use a filter to capture that IP traffic

user83 ( 2021-04-09 15:11:05 +0000 )edit

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