Difference between revisions of "MTU"
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| Line 19: | Line 19: | ||
* [[Path MTU Discovery (PMTUD)]] | * [[Path MTU Discovery (PMTUD)]] | ||
* [[sysctl]]: <code>net.ipv4.tcp_mtu_probing</code> | * [[sysctl]]: <code>net.ipv4.tcp_mtu_probing</code> | ||
| + | * [[WireGuard]]: https://wiki.archlinux.org/index.php/WireGuard#Low_MTU | ||
== See also == | == See also == | ||
Revision as of 10:11, 16 December 2020
Cisco IOS: show system mtu
Change configuration on Linux:
ip link set dev eth0 mtu 9000(Jumbo frames)
ifconfig -a | grep mtu
ping -M do -s 9000 <some_ip_address>
Select Path MTU Discovery strategy. hint may be either do (prohibit fragmentation, even local one), want (do PMTU discovery, fragment locally when packet size is large), or don't (do not set DF flag).
netsh interface ipv4 show interfaces
Related terms
- Jumbo frames
- debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
- Path MTU Discovery (PMTUD)
- sysctl:
net.ipv4.tcp_mtu_probing - WireGuard: https://wiki.archlinux.org/index.php/WireGuard#Low_MTU
See also
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