Centos，Redhat
ip link set dev eth0 mtu 1454
echo “MTU=1454” >>
/etc/sysconfig/network-scripts/ifcfg-eth0
Ubuntu
sudo ip link set dev eth0 mtu 1454
sudo sh -c “echo mtu 1454 >>
/etc/network/interfaces”
Debian (6.0, 7.0)
ip link set dev eth0 mtu 1458
echo “mtu 1454” >> /etc/network/interfaces
Gentoo 2.2
ifconfig eth0 mtu 1454
echo mtu_eth0=1454 >> /etc/conf.d/net