mirror of
https://github.com/OpenVPN/openvpn.git
synced 2024-09-20 20:03:13 +02:00
6fbf66fad3
It includes the --topology feature, and TAP-Win32 driver changes to allow non-admin access. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@580 e7ae566f-a301-0410-adde-c780ea21d3b5
50 lines
1.4 KiB
Bash
Executable File
50 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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#
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# Bring up vpn routing.
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# calculate the network address
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remote_network=`ipcalc -n "$remote"/"$remote_netmask_bits"`
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remote_network="${remote_network#*=}"
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# add the stuff that doesn't change if it's not already there
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grep -q '^202 ' /etc/iproute2/rt_tables
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if [ "$?" -ne 0 ]
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then
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echo 202 vpn.out >> /etc/iproute2/rt_tables
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fi
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grep -q '^203 ' /etc/iproute2/rt_tables
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if [ "$?" -ne 0 ]
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then
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echo 203 vpnonly.out >> /etc/iproute2/rt_tables
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fi
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ip rule ls | grep -q 'lookup vpn.out *$'
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if [ "$?" -ne 0 ]
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then
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ip rule add fwmark 2 table vpn.out
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fi
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ip rule ls | grep -q 'lookup vpnonly.out *$'
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if [ "$?" -ne 0 ]
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then
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ip rule add fwmark 3 table vpnonly.out
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fi
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# route VPN traffic using the normal table
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iptables -A OUTPUT -t mangle -p "$proto" -d "$remote" --dport "$remote_port" \
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-j ACCEPT
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# route all other traffic to that host via VPN
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iptables -A OUTPUT -t mangle -d "$remote_network"/"$remote_netmask_bits" \
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-j MARK --set-mark 2
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# route all ICMP pings over the VPN
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iptables -A OUTPUT -t mangle --protocol icmp --icmp-type echo-request \
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-j MARK --set-mark 3
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# NAT traffic going over the VPN, so it doesn't have an unknown address
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iptables -t nat -A POSTROUTING -o "$1" -j SNAT --to-source "$4"
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# add routing commands
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ip route add "$remote_network"/"$remote_netmask_bits" via "$5" table vpn.out
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ip route add table vpnonly.out via "$5"
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ip route flush cache
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