$ ip route show default via 123.123.123.241 dev eno1 onlink 123.123.123.240/29 dev eno1 proto kernel scope link src 123.123.123.242 $ ip route change default via 123.123.123.241 dev eno1 onlink initcwnd 32 $ ip route show default via 123.123.123.241 dev eno1 onlink initcwnd 32 123.123.123.240/29 dev eno1 proto kernel scope link src 123.123.123.242 sysctl -w net.core.default_qdisc=fq