Networking

Manual MTU detection

Detect MTU by sending non-fragmentable ICMP packets. Restore MTU to a default value before testing.

1
ping -c 3 -M do -s 1500 10.0.0.13

Set MTU

1
ip link set dev eth0 mtu 1500

Host discovery

1
nmap -sP 192.168.88.1/24

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