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Decided to switch out my router to a linux box. As an initial test, followed the instructions on the Arch router wiki exactly except for substituting extern0 and intern0 for the actual interfaces (both ethernet). Devices are getting IPs, internet is accessible from the box itself but not from any devices on the lan. Route and iptables look acceptable. But traffic doesn't seem to be getting forwarded from internal to external. Any advice on how to troubleshoot? (I thought the wiki made it look to easy)
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Please post all the commands you used with their outputs, configuration files you altered and their current contents.
Edit:
https://bbs.archlinux.org/viewtopic.php?id=57855
Last edited by loqs (2018-07-28 23:29:54)
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I started to do that but it is literally verbatim the wiki.
https://wiki.archlinux.org/index.php/Router
Manual iptables vice shorewall, and stopped after the iptables section so no IPv6 and UPNP. No errors indicating command failure when entering any of them in.
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Manual iptables vice shorewall
What does that mean?
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That I used the iptables setup and not the shorewall option.
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What about Internet_sharing#Enable_packet_forwarding?
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sysctl net.ipv4.ip_forward=1
at the command line didn't immediately solve and the changes /etc/sysctl.d/30-ipforward.conf also did not fix on subsequent reboots.
Currently, trying to poke around in logs to see if there is an error thrown somewhere.
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Seems to be hardware. Switched to spare usb nic and it worked.
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