Scan for raspberry pi on network9/26/2023 If they happen to be Raspberry Pi devices (or "adult-sized" Debian hosts), there's a good tutorial/how-to that covers that in the Debian wiki. $ sudo apt-get install etherwake wakeonlanĪnd now you're ready! man etherwake and man wakeonlan will fill you in on the details for using either of these packages.Īs you already know, the host(s) to be awakened will need to have the "Wake-on-LAN" feature enabled. Wakeonlan - Sends 'magic packets' to wake-on-LAN enabled ethernet adapters You may install them both, and determine your own preferences: $ apt-cache search etherwakeĮtherwake - tool to send magic Wake-on-LAN packets Which one is best? My preference is wakeonlan because it doesn't require root privileges to run (no sudo required). There are two packages available on RPi that will send the required WoL "magic packet" to the host(s) you choose: etherwake is one, and the other one has the unlikely name of wakeonlan :) To locate a binary you can use find /usr/sbin -name arp (like commented) or whereis -b arp.Īssuming you already have the MAC addresses of the host(s) you want to wake, you don't need nmap at all. This will result in net-tools: /usr/sbin/arp which implies the package net-tools is required. Like commented you can use the APT package searching utility apt-file (it's not installed by default) to search targeted for apt-file search -x 'bin/arp$'. Sometimes it helps to query the Debian repository with an ordinary browser. Autocompletion will show (not install) all package names starting with "arp". I recommend sudo apt-get update prior to avoid outdated metadata.Īnother option is to use the bash autocomplete feature: in a terminal window just type ( without pressing return) sudo apt-get install arp and hit tab twice. To query the APT cache for "arp" you can use apt-cache search arp | more. As soon as had updated to Buster, the VERY same SANE configurations I did in strech no longer works. to scan documents to my Windows computer via SANE on a RPi2 attached Multifunctions Epson Printer Stylus DX6000. If you don't know the correct or complete name of a package you can search for it: With Raspbian Strech I have NO problems using Windows programs such 'ScanImage', 'SANEWin' and so on. As stated, this works fine and dandy for every other device (as should), so something is off with the pi zero W.Good news in case you are looking for the "arp scanning and fingerprinting tool": it's in the Raspbian repository and sudo apt-get update sudo apt-get install arp-scan should help you. I'm running latest buster lite, and just ran apt update/upgrade, but not a firmware update, so still on kernel 5.4.83+ #1379ĮDIT: For everyone that think that wifi-roaming refers to switching SSID, that is not the case for "true" roaming (wpa-roam is something different). brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1 brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43430-sdio.raspberrypi,model-zero-w.txt failed with error -2 usbcore: registered new interface driver brcmfmac I get this in dmesg output: brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1 ![]() ![]() Roaming is a driver responsibility, so question is if the driver for BCM43430 is broken. This is my wpa_nf country=SEĬtrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdevĪm I missing some obvious configuration? Just for reference, all my 30+ devices roams correctly on this network, so the wifi setup should be correct. It does seem to do some sort of roaming though, because if I reboot the AP it is connected to, it would swap over to the other one temporarily and I don't seem to loose my SSH session when that happens. Now I'm suspecting that it is choosing the AP with the lowest BSSID, which seems like a very odd choice. It connects to the one with almost -70dBm although it obviously sees the other AP with -30dBm (which is also placed right next to the zero right now as a test).įirst I thought it was a problem with channel selection, so I swapped channels on the APs, but it didn't matter. However, for some reason, the 0W insists on connecting to the AP with the lowest signal, not the strongest. I just got a pi zero W and I'm trying to run it on my home wifi which has two access points (EAP245).
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