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#!/bin/sh
#
# Bring down vpn routing.
# calculate the network address
remote_network=`ipcalc -n "$remote"/"$remote_netmask_bits"`
remote_network="${remote_network#*=}"
# clear routing via VPN
ip route del "$remote_network"/"$remote_netmask_bits" via "$5" table vpn.out
ip route del table vpnonly.out via "$5"
iptables -D OUTPUT -t mangle -p "$proto" \
-d "$remote_network"/"$remote_netmask_bits" \
--dport "$remote_port" -j ACCEPT
iptables -D OUTPUT -t mangle -d "$remote" -j MARK --set-mark 2
# undo the ICMP ping tunneling
iptables -D OUTPUT -t mangle --protocol icmp --icmp-type echo-request \
-j MARK --set-mark 3
# flush route cache
ip route flush cache
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