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note on dhcpcd in rpi

master
Jordan Sokolic 2020-09-15 11:28:55 +03:00
parent 726f394eac
commit b6fa180dc2
1 changed files with 12 additions and 2 deletions
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docs/rpi.md
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@ -36,10 +36,20 @@ $ docker save $BUILD_TAG | ssh <your_raspberry_pi_host> docker load
``` ```
## IPv6 ## IPv6
By default Raspbian does not load the kernel module for IPv6 `iptables` on boot. By default Raspberry Pi OS does not load the kernel module for IPv6 `iptables` on boot.
Run `sudo modprobe ip6_tables` to load it immediately. Run `sudo modprobe ip6_tables` to load it immediately.
To persist on reboot, run To persist on reboot, run
$ echo 'ip6_tables' | sudo tee /etc/modules-load.d/ip6-tables.conf $ echo 'ip6_tables' | sudo tee /etc/modules-load.d/ip6-tables.conf
## DHCP
Raspberry Pi OS ships with a default `dhcpcd` configuration that assigns a DHCP address to every new interface added to the system including virtual ones.
This is not necessarily what we want. Instead we would like to limit the interfaces `dhcpcd` watches to only the physical ones, i.e., interfaces `eth*` and `wl*`:
```
$ echo 'allowinterfaces eth* wl*' | sudo tee -a /etc/dhcpcd.conf
$ sudo dhcpcd -n
```