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mtu_expires

file: /proc/sys/net/ipv4/mtu_expires
variable: net.ipv4.mtu_expires
Official reference

Time, in seconds, that cached PMTU information is kept.

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Last update: 2026-03-30 12:00:00 UTC
Parsed kernel version 6.18 from git

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Updated by Ilya Vasilyev aka Nadz Goldman from Arviol ( vStack dep. ), ITG