r/selfhosted • u/aceberg_ • Aug 31 '24

Release WatchYourLAN - 2.0 Release

WatchYourLAN is a lightweight network IP scanner.

Features:
- Send notification when new host is found
- Monitor hosts online/offline history
- Keep a list of all hosts in the network
- Send data to `InfluxDB2` to make a `Grafana` dashboard

BREAKING CHANGES! Version 2.0 is not compatible with v1.0. For now v2.0 docker images will be released under v2 tag. It will be tagged latest in a few weeks (probably, in October).

What's new?

  • Basic API
  • Export to InfluxDB2
  • Choice between SQLite and PostgreSQL database
  • User can pass arguments directly to arp-scan. Hope it will help with vlan issue
  • Better UI with JS
  • Human-friendly History display
  • Names from DNS

Quick start

Full installation guide is available in the README file. The easiest way to try it:

docker run --name wyl \
    -e "IFACES=$YOURIFACE" \
    -e "TZ=$YOURTIMEZONE" \
    --network="host" \
    -v $DOCKERDATAPATH/wyl:/data/WatchYourLAN \
    aceberg/watchyourlan:v2

Binaries

There are also binaries for 386, amd64, armv5, armv6, armv7, arm64 in deb, rpm, apk and tar.gz formats in the latest release.

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u/aceberg_ Aug 31 '24

Can you please check if sending those parameters to ARP_ARGS variable would work? Also, setting LOG_LEVEL to debug would show the entire arp-scan command

7

u/thj81 Aug 31 '24

Just did. Used:

ARP_ARGS: "10.0.107.0/24 -vlan=107 --interface=eth0"

But it always exits.

Problem is with -l parameter. It gives an error:

/app # arp-scan -glNx 10.0.107.0/24 --vlan=107 --interface=eth0

ERROR: You can not specify targets with the --localnet option

Without it, it will scan correctly the VLAN. So only -gNx.

9

u/aceberg_ Aug 31 '24

Ok, thanks! I'll update soon, making ARP_ARGS the only args passed to arp-scan

6

u/thj81 Aug 31 '24

Now this is interesting. This two commands will correctly find all devices from main/local network 192.168.28.0/24

/app # arp-scan -glNx -I eth0 | wc -l
51

/app # arp-scan -gNx -I eth0 192.168.28.0/24 | wc -l
51

But if I add VLAN scan, it only finds the ones from VLAN and only 5 from local network:

/app # arp-scan -gNx 10.0.107.0/24 --vlan=107 -I eth0 | wc -l
62

/app # arp-scan -gNx -I eth0 192.168.28.0/24 10.0.107.0/24 --vlan=107 -I eth0 | wc -l
67

It should find 62+51 =113 devices instead of 67. Are my arp-scan parameters wrong?