#!/bin/sh
multipathip=$(dig +short A multipath-tcp.org | tr -d "\n")
ipset add ss_rules_dst_bypass_all $multipathip > /dev/null 2>&1
curl -s -4 -m 3 --interface $1 http://www.multipath-tcp.org
ipset del ss_rules_dst_bypass_all $multipathip > /dev/null 2>&1