gounthar Posted March 30, 2020 Share Posted March 30, 2020 Hi there, with the global lockdown, I had to move my "lab" at home... and I have trouble with the infamous WAF. So I moved almost everything in the attic, and would have loved to pull an Ethernet cable from my ISP box to the "lab" Wi-Fi router, but it's not significant other's compatible. As strange as it may seem, the Wi-Fi signal coming from the ISP box is really strong in the attic, so I thought of redirecting the Wi-Fi to the 24 ports switch thanks to a SBC. I don't want the SBC to act as a router, I want to use the router which is in my ISP box, so that I can still interact easily with the machines in the attic wherever I may be in the house. I don't really know where to start. I don't want to go the full Monty and install openWRT, as I don't think I need a router, just something that bonds the Wi-Fi network to the Ethernet on a board, so that I can "feed" a switch. Any idea? Thanks a lot. 0 Quote Link to comment Share on other sites More sharing options...
a16bitsysop Posted March 30, 2020 Share Posted March 30, 2020 Here is some instructions for a raspberry pi https://www.raspberrypi.org/forums/viewtopic.php?t=132674 It has a local and remote network tho, not just a bridge. 1 Quote Link to comment Share on other sites More sharing options...
gounthar Posted March 30, 2020 Author Share Posted March 30, 2020 I will definitely check it, thanks for the link. 0 Quote Link to comment Share on other sites More sharing options...
gounthar Posted March 30, 2020 Author Share Posted March 30, 2020 Hmmm... With the latest versions of Armbian/Debian, we don't have iptables but nftables. I have to try and find something that uses that. 0 Quote Link to comment Share on other sites More sharing options...
gounthar Posted April 24, 2020 Author Share Posted April 24, 2020 I tried another way with arp proxy, following this tutorial, but at the end, I only get Apr 24 00:04:54 localhost systemd[1]: parprouted.service: Scheduled restart job, restart counter is at 249. Apr 24 00:04:54 localhost systemd[1]: Stopped proxy arp routing service. Apr 24 00:04:54 localhost systemd[1]: Starting proxy arp routing service... Apr 24 00:05:00 localhost systemd-networkd-wait-online[3263]: Event loop failed: Connection timed out Apr 24 00:05:00 localhost systemd[1]: parprouted.service: Control process exited, code=exited, status=1/FAILURE Apr 24 00:05:00 localhost bash[3286]: Error: any valid prefix is expected rather than "/32". Apr 24 00:05:00 localhost systemd[1]: parprouted.service: Control process exited, code=exited, status=1/FAILURE Apr 24 00:05:00 localhost systemd[1]: parprouted.service: Failed with result 'exit-code'. Apr 24 00:05:00 localhost systemd[1]: Failed to start proxy arp routing service. Apr 24 00:05:05 localhost systemd[1]: parprouted.service: Service RestartSec=5s expired, scheduling restart. Apr 24 00:05:05 localhost systemd[1]: parprouted.service: Scheduled restart job, restart counter is at 250. Apr 24 00:05:05 localhost systemd[1]: Stopped proxy arp routing service. Apr 24 00:05:05 localhost systemd[1]: Starting proxy arp routing service... Apr 24 00:05:12 localhost systemd-networkd-wait-online[3295]: Event loop failed: Connection timed out Apr 24 00:05:12 localhost systemd[1]: parprouted.service: Control process exited, code=exited, status=1/FAILURE Apr 24 00:05:12 localhost bash[3298]: Error: any valid prefix is expected rather than "/32". Apr 24 00:05:12 localhost systemd[1]: parprouted.service: Control process exited, code=exited, status=1/FAILURE Apr 24 00:05:12 localhost systemd[1]: parprouted.service: Failed with result 'exit-code'. Apr 24 00:05:12 localhost systemd[1]: Failed to start proxy arp routing service. Apr 24 00:05:17 localhost systemd[1]: parprouted.service: Service RestartSec=5s expired, scheduling restart. Apr 24 00:05:17 localhost systemd[1]: parprouted.service: Scheduled restart job, restart counter is at 251. Apr 24 00:05:17 localhost systemd[1]: Stopped proxy arp routing service. Apr 24 00:05:17 localhost systemd[1]: Starting proxy arp routing service... I will investigate. 0 Quote Link to comment Share on other sites More sharing options...
gounthar Posted April 24, 2020 Author Share Posted April 24, 2020 Reading further in the tutorial mentioned earlier, I changed the content of /etc/systemd/system/parprouted.service [Unit] Description=proxy arp routing service Documentation=https://raspberrypi.stackexchange.com/q/88954/79866 [Service] Type=forking # Restart until wlan0 gained carrier Restart=on-failure RestartSec=5 TimeoutStartSec=30 ExecStartPre=/usr/bin/perl -e 'sleep 1 until -e "/sys/class/net/wlan0"' ExecStartPre=/bin/echo 'parprouted: wlan0 is online' # clone the dhcp-allocated IP to eth0 so dhcp-helper will relay for the correct subnet ExecStartPre=/bin/bash -c '/sbin/ip addr add $(/sbin/ip -4 addr show wlan0 | /bin/grep -Po "\\d+\\.\\d+\\.\\d+\\.\\d+\/")32 dev eth0' ExecStartPre=/sbin/ip link set dev eth0 up ExecStartPre=/sbin/ip link set wlan0 promisc on # v minus sign ExecStart=-/usr/sbin/parprouted eth0 wlan0 ExecStopPost=/sbin/ip link set wlan0 promisc off ExecStopPost=/sbin/ip link set dev eth0 down ExecStopPost=/bin/bash -c '/sbin/ip addr del $(/sbin/ip -4 addr show eth0 | /bin/grep -c1 -Po "\\d+\\.\\d+\\.\\d+\\.\\d+")/32 dev eth0' [Install] WantedBy=multi-user.target And the error is gone. My PC still can't see the network, but we're progressing. 0 Quote Link to comment Share on other sites More sharing options...
sfx2000 Posted June 21, 2020 Share Posted June 21, 2020 On 3/30/2020 at 12:38 AM, gounthar said: I don't really know where to start. I don't want to go the full Monty and install openWRT, Hit the easy button and install OpenWRT Done and done - solves your problem. Move on to other interesting things with your homelab. 1 Quote Link to comment Share on other sites More sharing options...
gounthar Posted June 21, 2020 Author Share Posted June 21, 2020 Thanks a lot @sfx2000, I will give it a try. ;-) 0 Quote Link to comment Share on other sites More sharing options...
MR01 Posted May 3, 2022 Share Posted May 3, 2022 On 6/21/2020 at 8:53 PM, gounthar said: Thanks a lot @sfx2000, I will give it a try. ;-) I made a guide after resolving the problem on my own after many not working guides. 1 Quote Link to comment Share on other sites More sharing options...
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