liminix-fork/tests/support/ppp-server/README.md

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# ppp-server
To test a router, we need an upstream connection. In this directory,
find
* run.sh, a script that will start a RouterOS image in qemu.
Login when prompted, username is "admin", blank password
* routeros.config, a set of commands you can feed into routeros
to set up PPPoE
To get the chr-7.5.img image, visit https://mikrotik.com/download and
look in the section titled "Cloud Hosted Router" for "Raw disk image"
You may need to open your firewall a bit to allow multicast packets
so that the upstream and the liminix qemu instances may communicate
config.networking.firewall.extraCommands = ''
ip46tables -A nixos-fw -m pkttype --pkt-type multicast -p udp --dport 1234:1236 -j nixos-fw-accept
'';
## To connect to the routeros serial
The Qemu instance running RouterOS is headless, but it creates
two unix sockets for serial port and monitor.
socat -,raw,echo=0,icanon=0,isig=0,icrnl=0,escape=0x0f tests/support/ppp-server/qemu-console
socat -,raw,echo=0,icanon=0,isig=0,icrnl=0,escape=0x0f tests/support/ppp-server/qemu-monitor