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Linux ToS

ping [ADDRESS] -Q [ToS]
systemctl start firewalld.service
systemctl enable firewalld.service
firewall-cmd --permanent --direct --add-rule ipv4 mangle OUTPUT 0 -d 0.0.0.0/0 -j DSCP --set-dscp-class AF21

再起動で反映する

systemctl restart firewalld.service

削除

firewall-cmd --permanent --direct --remove-rule ipv4 mangle OUTPUT 0 -d 0.0.0.0/0 -j DSCP --set-dscp-class AF21
tcpdump -i eth0 -v ip[1]==184
tcpdump -i eth0 -v ip[1]==0xb8
tshark -i eth0 -V ip[1]=0xb8