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| author |  sommerfeld <sommerfeld@sommerfeld.dev> | 2026-05-22 14:28:17 +0100 |
|---|---|---|
| committer | sommerfeld <sommerfeld@sommerfeld.dev> | 2026-05-22 14:28:17 +0100 |
| commit | 7412e0fe4e8fae4159f66ce5feb4a1c3fb25e879 (patch) | |
| tree | 098367bcf9798fddfc1d08a49e89a7befc93f878 /etc/sysctl.d | |
| parent | 1dfee96401c03666aa3eeec7a40fbc42ff05e1b3 (diff) | |
| download | dotfiles-7412e0fe4e8fae4159f66ce5feb4a1c3fb25e879.tar.gz dotfiles-7412e0fe4e8fae4159f66ce5feb4a1c3fb25e879.tar.bz2 dotfiles-7412e0fe4e8fae4159f66ce5feb4a1c3fb25e879.zip | |
fix(sysctl): enable net.ipv4.ip_forward for NAT bridges
waydroid (and libvirt with finicky guests) need the host to route
between their NAT bridge and the upstream NIC. libvirtd usually
enables this on demand but it doesn't persist, so the container has
no internet on a fresh boot until something else flips the bit.
Diffstat (limited to 'etc/sysctl.d')
| -rw-r--r-- | etc/sysctl.d/99-sysctl.conf | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/etc/sysctl.d/99-sysctl.conf b/etc/sysctl.d/99-sysctl.conf index 3177c28..fc01611 100644 --- a/etc/sysctl.d/99-sysctl.conf +++ b/etc/sysctl.d/99-sysctl.conf @@ -30,3 +30,8 @@ net.ipv4.conf.default.send_redirects = 0 net.ipv4.conf.all.accept_source_route = 0 net.ipv6.conf.all.accept_source_route = 0 net.ipv4.conf.all.log_martians = 1 + +# IP forwarding for NAT bridges (libvirt's virbr0, waydroid's waydroid0). +# libvirtd and waydroid both rely on the host routing between their bridge +# and the upstream NIC; without this they get no internet. +net.ipv4.ip_forward = 1 |