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| author | xengineering <me@xengineering.eu> | 2025-03-21 22:41:45 +0100 |
|---|---|---|
| committer | xengineering <me@xengineering.eu> | 2025-03-21 22:41:45 +0100 |
| commit | 3d28070910e3cf6ec5375e18cafbda0b7b22cfc8 (patch) | |
| tree | 8ab9fc53d469a2e37edf154fcab5af0ad0ac7676 | |
| parent | 3447721d20146ba0447ee9998838266619e4c789 (diff) | |
| download | iot-contact-3d28070910e3cf6ec5375e18cafbda0b7b22cfc8.tar iot-contact-3d28070910e3cf6ec5375e18cafbda0b7b22cfc8.tar.zst iot-contact-3d28070910e3cf6ec5375e18cafbda0b7b22cfc8.zip | |
fw: network: Add Kconfig-based IPv6 ULA
Using Kconfig for now is a way to continue faster for now. Proper
runtime configuration should be added later.
The firmware in general should be fully usable without a DHCPv6 server
to not require central infrastructure.
While IPv6 link-local addresses provide static and unique addresses for
local communication and SLAAC provides global addresses there is still a
need for an additional static address.
For this there are basically two choices:
- global IPv6 prefixes
- IPv6 unique local addresses (ULAs)
ULAs are picked with this commit. They cannot be routed which makes
isolation from the internet independent of firewall rules adding
security.
Furthermore by picking them randomly they are in practise always unique.
This allows to assign them without a central IP network management and
allows to keep those addresses forever. Both great advantages over the
IPv4 192.168.0.0/16 and similar ranges.
| -rw-r--r-- | fw/prj.conf | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fw/prj.conf b/fw/prj.conf index 3df3155..3d243c0 100644 --- a/fw/prj.conf +++ b/fw/prj.conf @@ -15,6 +15,10 @@ CONFIG_NET_TCP=y CONFIG_NET_HOSTNAME_ENABLE=y CONFIG_NET_HOSTNAME_DYNAMIC=y +CONFIG_NET_CONFIG_SETTINGS=y +CONFIG_NET_CONFIG_MY_IPV6_ADDR="fdb3:c9f2:efda:1:1" +CONFIG_NET_IF_UNICAST_IPV6_ADDR_COUNT=4 + CONFIG_LOG=y CONFIG_LOG_BACKEND_NET=y CONFIG_LOG_BACKEND_NET_SERVER="[2001:db8::2]:514" |