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Arp scan over a vpn

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This topic contains 0 replies, has 1 voice, and was last updated by  BrianMiz 4 months, 1 week ago.

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  • #133374


    Hi All,

    I am trying to run an arp scan from my host machine whilst connected to a VPN. Here is the relevant bit of my configuration:

    $ ip a
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet scope host lo
    valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
    valid_lft forever preferred_lft forever
    2: wlo1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 50:eb:71:37:61:76 brd ff:ff:ff:ff:ff:ff
    inet brd scope global noprefixroute wlo1
    valid_lft forever preferred_lft forever

    8: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 100
    inet brd scope global tun0
    valid_lft forever preferred_lft forever

    I would like to run arp-scan on the range.

    $ sudo arp-scan -v
    [sudo] password for jonathan:
    ERROR: Could not obtain MAC address for interface tun0

    If I spin up a VM and use bridge networking, the network shows up as eth0 and I can run arp-scan without a problem.

    My question is, how can I run it on my host OS?

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