mape-macos.sh

mape-macos.sh

#!/bin/sh

# Define variables
BR='スクショのoption peeraddrのアドレスをそのまま書く' # Remote IPv6 address
CE='スクショのCEを書く' # Local IPv6 address
IP4='スクショのIPv4アドレスを書く' # Local IPv4 address
PSID='スクショのPSIDを書く' # PSID
WANDEV='上記のifconfigで特定したインターフェース' # WAN interface
TUNDEV='gif0' # Tunnel interface name

# Step 1: Create the GIF tunnel interface
sudo ifconfig $TUNDEV create

# Step 2: Configure the tunnel endpoints
sudo ifconfig $TUNDEV tunnel $CE $BR

# Step 3: Assign IPv6 addresses to the tunnel
sudo ifconfig $TUNDEV inet6 $CE $BR prefixlen 128

# Step 4: Set MTU for the tunnel interface
sudo ifconfig $TUNDEV mtu 1460

# Step 5: Bring up the tunnel interface
sudo ifconfig $TUNDEV up

# Step 6: Update default IPv4 route to use the tunnel
sudo route -n delete default
sudo route -n add default -interface $TUNDEV

# Step 7: Set up port forwarding using pf
echo "Flushing existing pf rules..."
sudo pfctl -F all

echo "Generating pf rules..."
cat <<EOF | sudo tee /etc/pf.conf
nat on $TUNDEV proto { tcp, udp, icmp } from $IP4 to any -> ($TUNDEV)
EOF

echo "Reloading pf configuration..."
sudo pfctl -f /etc/pf.conf
sudo pfctl -e

# Step 8: Port mappings for MAP-E
rule=1
while [ $rule -le 15 ]; do
  mark=`expr $rule + 16`
  pn=`expr $rule - 1`
  portl=`expr $rule \* 4096 + $PSID \* 16`
  portr=`expr $portl + 15`

  echo "Adding NAT rules for ports $portl-$portr"
  echo "nat on $TUNDEV proto { tcp, udp, icmp } from $IP4 to any port $portl:$portr -> ($TUNDEV)" >> /etc/pf.conf

  rule=`expr $rule + 1`
done

echo "Reloading pf configuration with port mappings..."
sudo pfctl -f /etc/pf.conf