!tCyGickeVqkHsYjWnh:nixos.org

NixOS Networking

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Declaratively manage your switching, routing, wireless, tunneling and more. | Don't rely on `networking.*` for interface and routing setup, use systemd-networkd, ifstate or NetworkManager instead. | Set `SYSTEMD_LOG_LEVEL=debug` to debug networking issues with networkd | No bad nft puns, please. | Room recommendations: #sysops:nixos.org256 Servers

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22 Nov 2025
@hexa:lossy.networkhexa (clat on linux when)so you receive synack but curl doesn't notice16:42:50
@hexa:lossy.networkhexa (clat on linux when)oops, you said that16:43:15
@hexa:lossy.networkhexa (clat on linux when)I would still expect this to be related to asymmetry16:43:57
@hexa:lossy.networkhexa (clat on linux when)maybe check net.ipv4.conf.{all,wlan0}.rp_filter16:44:18
@hexa:lossy.networkhexa (clat on linux when) * check net.ipv4.conf.{all,wlan0}.rp_filter as well 16:44:29
@hexa:lossy.networkhexa (clat on linux when) * check net.ipv4.conf.{all,wlan0}.rp\_filter as well 16:44:35
@hexa:lossy.networkhexa (clat on linux when) * check net.ipv4.conf.{all,wlan0}.rp_filter as well 16:44:38
@hexa:lossy.networkhexa (clat on linux when)because the packets arrive from a link that the system would not use for outgoing traffic towards that src address16:45:13
@raboof:matrix.orgraboof yeah sysctl net.ipv4.conf | grep filter is all zero's 16:45:33

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