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@evilsocket @alwayslivid @caquino
executable file 19 lines (14 sloc) 636 Bytes
#!/usr/bin/env bash
# name of the ethernet gadget interface on the host
USB_IFACE=${1:-enp0s20f0u1}
USB_IFACE_IP=10.0.0.1
USB_IFACE_NET=10.0.0.0/24
# host interface to use for upstream connection
UPSTREAM_IFACE=${2:-enxe4b97aa99867}
ip addr add "$USB_IFACE_IP/24" dev "$USB_IFACE"
ip link set "$USB_IFACE" up
iptables -A FORWARD -o "$UPSTREAM_IFACE" -i "$USB_IFACE" -s "$USB_IFACE_NET" -m conntrack --ctstate NEW -j ACCEPT
iptables -A FORWARD -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
iptables -t nat -F POSTROUTING
iptables -t nat -A POSTROUTING -o "$UPSTREAM_IFACE" -j MASQUERADE
echo 1 > /proc/sys/net/ipv4/ip_forward
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