How to run `arp-scan` on an interface that's modified by netplan?












0















I have a link-local address set up for an ethernet dongle via netplan:



# For USB eth dongle
network:
version: 2
renderer: NetworkManager
ethernets:
enx00249b1ec202:
dhcp4: no
dhcp6: no
link-local: [ ipv4, ipv6]
addresses: [169.254.11.25/16]


I currently have a Raspberry Pi connected to my PC through that dongle. I tried running arp-scan but after running for a while, it couldn't find the Pi.



$ sudo arp-scan -I enx00249b1ec202 -l
Interface: enx00249b1ec202, datalink type: EN10MB (Ethernet)
Starting arp-scan 1.9.5 with 65536 hosts (https://github.com/royhills/arp-scan)

0 packets received by filter, 0 packets dropped by kernel
Ending arp-scan 1.9.5: 65536 hosts scanned in 263.530 seconds (248.69 hosts/sec). 0 responded


How can I have Arp detect it?



Edit: it's a whole different problem



I thought it was the arp-scan problem, but it turns out that netplan didn't apply upon reboot. I ssh-ed to it through WiFi, and that's when I realized it.



this is the Netplan config file for my Pi:



network:
version: 2
renderer: networkd
ethernets:
eth0:
dhcp4: no
dhcp6: no
addresses: [169.254.2.14/16]


Did I do anything wrong?










share|improve this question

























  • If I understand correctly, you're saying that the network interface on the Pi wasn't brought up after reboot. What is the output of netplan apply --debug on the Pi? What is the output of journalctl -l -u systemd-networkd?

    – slangasek
    11 hours ago
















0















I have a link-local address set up for an ethernet dongle via netplan:



# For USB eth dongle
network:
version: 2
renderer: NetworkManager
ethernets:
enx00249b1ec202:
dhcp4: no
dhcp6: no
link-local: [ ipv4, ipv6]
addresses: [169.254.11.25/16]


I currently have a Raspberry Pi connected to my PC through that dongle. I tried running arp-scan but after running for a while, it couldn't find the Pi.



$ sudo arp-scan -I enx00249b1ec202 -l
Interface: enx00249b1ec202, datalink type: EN10MB (Ethernet)
Starting arp-scan 1.9.5 with 65536 hosts (https://github.com/royhills/arp-scan)

0 packets received by filter, 0 packets dropped by kernel
Ending arp-scan 1.9.5: 65536 hosts scanned in 263.530 seconds (248.69 hosts/sec). 0 responded


How can I have Arp detect it?



Edit: it's a whole different problem



I thought it was the arp-scan problem, but it turns out that netplan didn't apply upon reboot. I ssh-ed to it through WiFi, and that's when I realized it.



this is the Netplan config file for my Pi:



network:
version: 2
renderer: networkd
ethernets:
eth0:
dhcp4: no
dhcp6: no
addresses: [169.254.2.14/16]


Did I do anything wrong?










share|improve this question

























  • If I understand correctly, you're saying that the network interface on the Pi wasn't brought up after reboot. What is the output of netplan apply --debug on the Pi? What is the output of journalctl -l -u systemd-networkd?

    – slangasek
    11 hours ago














0












0








0








I have a link-local address set up for an ethernet dongle via netplan:



# For USB eth dongle
network:
version: 2
renderer: NetworkManager
ethernets:
enx00249b1ec202:
dhcp4: no
dhcp6: no
link-local: [ ipv4, ipv6]
addresses: [169.254.11.25/16]


I currently have a Raspberry Pi connected to my PC through that dongle. I tried running arp-scan but after running for a while, it couldn't find the Pi.



$ sudo arp-scan -I enx00249b1ec202 -l
Interface: enx00249b1ec202, datalink type: EN10MB (Ethernet)
Starting arp-scan 1.9.5 with 65536 hosts (https://github.com/royhills/arp-scan)

0 packets received by filter, 0 packets dropped by kernel
Ending arp-scan 1.9.5: 65536 hosts scanned in 263.530 seconds (248.69 hosts/sec). 0 responded


How can I have Arp detect it?



Edit: it's a whole different problem



I thought it was the arp-scan problem, but it turns out that netplan didn't apply upon reboot. I ssh-ed to it through WiFi, and that's when I realized it.



this is the Netplan config file for my Pi:



network:
version: 2
renderer: networkd
ethernets:
eth0:
dhcp4: no
dhcp6: no
addresses: [169.254.2.14/16]


Did I do anything wrong?










share|improve this question
















I have a link-local address set up for an ethernet dongle via netplan:



# For USB eth dongle
network:
version: 2
renderer: NetworkManager
ethernets:
enx00249b1ec202:
dhcp4: no
dhcp6: no
link-local: [ ipv4, ipv6]
addresses: [169.254.11.25/16]


I currently have a Raspberry Pi connected to my PC through that dongle. I tried running arp-scan but after running for a while, it couldn't find the Pi.



$ sudo arp-scan -I enx00249b1ec202 -l
Interface: enx00249b1ec202, datalink type: EN10MB (Ethernet)
Starting arp-scan 1.9.5 with 65536 hosts (https://github.com/royhills/arp-scan)

0 packets received by filter, 0 packets dropped by kernel
Ending arp-scan 1.9.5: 65536 hosts scanned in 263.530 seconds (248.69 hosts/sec). 0 responded


How can I have Arp detect it?



Edit: it's a whole different problem



I thought it was the arp-scan problem, but it turns out that netplan didn't apply upon reboot. I ssh-ed to it through WiFi, and that's when I realized it.



this is the Netplan config file for my Pi:



network:
version: 2
renderer: networkd
ethernets:
eth0:
dhcp4: no
dhcp6: no
addresses: [169.254.2.14/16]


Did I do anything wrong?







networking netplan arp






share|improve this question















share|improve this question













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edited yesterday







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  • If I understand correctly, you're saying that the network interface on the Pi wasn't brought up after reboot. What is the output of netplan apply --debug on the Pi? What is the output of journalctl -l -u systemd-networkd?

    – slangasek
    11 hours ago



















  • If I understand correctly, you're saying that the network interface on the Pi wasn't brought up after reboot. What is the output of netplan apply --debug on the Pi? What is the output of journalctl -l -u systemd-networkd?

    – slangasek
    11 hours ago

















If I understand correctly, you're saying that the network interface on the Pi wasn't brought up after reboot. What is the output of netplan apply --debug on the Pi? What is the output of journalctl -l -u systemd-networkd?

– slangasek
11 hours ago





If I understand correctly, you're saying that the network interface on the Pi wasn't brought up after reboot. What is the output of netplan apply --debug on the Pi? What is the output of journalctl -l -u systemd-networkd?

– slangasek
11 hours ago










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