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fix(cc-ci-hetzner): drop empty IPv6 gateway/route (network-addresses-eth0 failure)

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nixos-infect emitted defaultGateway6.address="" and ipv6.routes=[{address="";
prefixLength=128}] for this v4-only Hetzner instance, so network-addresses-eth0.service
failed at boot ("ip route add  /128 ... any valid prefix is expected rather than /128").
The box has no real IPv6 (link-local only, kernel-managed), so remove the empty IPv6
gateway, address, and route. IPv4 unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
autonomic-bot
2026-05-31 03:58:08 +00:00
parent 4237cc03f5
commit a2163951e9
1 changed files with 3 additions and 8 deletions
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11
nix/hosts/cc-ci-hetzner/networking.nix
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@ -15,10 +15,9 @@
"185.12.64.2"
];
defaultGateway = "172.31.1.1";
defaultGateway6 = {
address = "";
interface = "eth0";
};
# No IPv6 on this Hetzner instance (link-local only) — nixos-infect emitted an empty
# defaultGateway6/ipv6.route which made network-addresses-eth0.service fail
# ("ip route add /128" with no prefix). v4-only box, so no IPv6 gateway/route declared.
dhcpcd.enable = false;
usePredictableInterfaceNames = lib.mkForce false;
interfaces = {
@ -26,11 +25,7 @@
ipv4.addresses = [
{ address = "91.98.47.73"; prefixLength = 32; }
];
ipv6.addresses = [
{ address = "fe80::9000:8ff:fe04:152e"; prefixLength = 64; }
];
ipv4.routes = [{ address = "172.31.1.1"; prefixLength = 32; }];
ipv6.routes = [{ address = ""; prefixLength = 128; }];
};
};
};