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static-router-config
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static-router-config
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#!/bin/bash
# Author: Mate-Laszlo Lang: [email protected]
# Date: 22 July, 2016
#
# This script will take a downloaded Generic (Vendor Agnostic) AWS VPN Connection txt file
# and create a MikroTik specific router configuration to set up VPN connection into your.
# VPC in AWS.
# Use it at your own risk, I am not accountable for any trouble it may cause.
set -e
AWS_GENERIC_CONFIG_FILE=$1
if [ x == x$AWS_GENERIC_CONFIG_FILE ];
then
echo "You should provide an AWS generated config file"
exit 1
fi
AWS_ADDRESSES_TO_USE=$(grep --color -A2 'Address' $1 | sed 's/.*:\ \(.*\)$/\1/' | grep '^[0-9].*$' | sed 's/^\(.*\)\/.*$/\1/')
readarray -t AWS_ADDRESSES_TO_USE <<< "$AWS_ADDRESSES_TO_USE"
AWS_SECRETS_TO_USE=$(grep 'Pre-Shared\ Key.*:' $1 | sed 's/.*: \(.*\)$/\1/')
readarray -t AWS_SECRETS_TO_USE <<< "$AWS_SECRETS_TO_USE"
# Tunnel 1 details
AWS_TUNNEL1_PUBLIC_ADDR="${AWS_ADDRESSES_TO_USE[1]}"
AWS_TUNNEL1_INSIDE_CUSTOMER_GATEWAY_ADDR="${AWS_ADDRESSES_TO_USE[2]}"
AWS_TUNNEL1_INSIDE_VIRTUAL_GATEWAY_ADDR="${AWS_ADDRESSES_TO_USE[3]}"
AWS_TUNNEL1_INSIDE_NETWORK=$(echo $AWS_TUNNEL1_INSIDE_VIRTUAL_GATEWAY_ADDR | sed 's/\(^.*\..*\..*\.\).*$/\10/')
AWS_TUNNEL1_SHARED_SECRET="${AWS_SECRETS_TO_USE[0]}"
# Tunnel 2 details
AWS_TUNNEL2_PUBLIC_ADDR="${AWS_ADDRESSES_TO_USE[5]}"
AWS_TUNNEL2_INSIDE_CUSTOMER_GATEWAY_ADDR="${AWS_ADDRESSES_TO_USE[6]}"
AWS_TUNNEL2_INSIDE_VIRTUAL_GATEWAY_ADDR="${AWS_ADDRESSES_TO_USE[7]}"
AWS_TUNNEL2_INSIDE_NETWORK=$(echo $AWS_TUNNEL2_INSIDE_VIRTUAL_GATEWAY_ADDR | sed 's/\(^.*\..*\..*\.\).*$/\10/')
SECRET_2="${AWS_SECRETS_TO_USE[1]}"
# Home Network Configuration
CUSTOMER_PUBLIC_ADDR="${AWS_ADDRESSES_TO_USE[0]}"
# VPC Details
DEFAULT_LOCAL_NET="$(ip route | grep 'scope link' | sed 's/^\([0-9./]*\).*$/\1/')"
echo -n "Type in local network CIDR (Enter to use guessed $DEFAULT_LOCAL_NET): "
read LOCAL_NET
if [ x == x$LOCAL_NET ];
then
LOCAL_NET=$DEFAULT_LOCAL_NET
fi
# VPC Details
echo -n "Type in your VPC CIDR [10.0.0.0/16]):"
read VPC_NET
if [ x == x$VPC_NET ];
then
VPC_NET="10.0.0.0/16"
fi
echo
echo "Your configuration will be created by using the following values"
echo "Your public adddress: $CUSTOMER_PUBLIC_ADDR"
echo "Your local network CIDR: $LOCAL_NET"
echo "Your VPC's CIDR: $VPC_NET"
echo
echo "AWS Tunnel #1 - Public Address: $AWS_TUNNEL1_PUBLIC_ADDR"
echo "AWS Tunnel #1 - Inside Customer Gateway Address: $AWS_TUNNEL1_INSIDE_CUSTOMER_GATEWAY_ADDR"
echo "AWS Tunnel #1 - Inside Virtual Gateway Address: $AWS_TUNNEL1_INSIDE_VIRTUAL_GATEWAY_ADDR"
echo "AWS Tunnel #1 - Secret: $AWS_TUNNEL1_SHARED_SECRET"
echo
echo "AWS Tunnel #2 - Public Address: $AWS_TUNNEL2_PUBLIC_ADDR"
echo "AWS Tunnel #2 - Inside Customer Gateway Address: $AWS_TUNNEL2_INSIDE_CUSTOMER_GATEWAY_ADDR"
echo "AWS Tunnel #2 - Inside Virtual Gateway Address: $AWS_TUNNEL2_INSIDE_VIRTUAL_GATEWAY_ADDR"
echo "AWS Tunnel #2 - Secret: $SECRET_2"
echo
echo -n "Is this correct(y/n)? "
read CONFIRM
if [ xy != x$CONFIRM ];
then
echo "You backed out. Exiting."
exit 0
fi
echo -n "Generate the config file in [./mikrotik-aws-config]:"
read CONFIG_FILE_PATH
if [ x == x$CONFIG_FILE_PATH ];
then
CONFIG_FILE_PATH="mikrotik-aws-config"
fi
echo \
"# Create IPSec proposal
/ip ipsec proposal \
add name=AWS \
auth-algorithms=sha1 \
enc-algorithms=aes-128-cbc \
lifetime=8m \
pfs-group=modp1024
# Create IPSec peers
/ip ipsec peer \
add comment=\"AWS Peer 1\" \
address=$AWS_TUNNEL1_PUBLIC_ADDR/32 \
local-address=$CUSTOMER_PUBLIC_ADDR \
secret=$AWS_TUNNEL1_SHARED_SECRET \
dpd-interval=10s dpd-maximum-failures=3 \
enc-algorithm=aes-128 lifetime=8h \
nat-traversal=no
/ip ipsec peer \
add comment=\"AWS Peer 2\" \
address=$AWS_TUNNEL2_PUBLIC_ADDR/32 \
local-address=$CUSTOMER_PUBLIC_ADDR \
secret=$SECRET_2 \
dpd-interval=10s dpd-maximum-failures=3 \
enc-algorithm=aes-128 lifetime=8h \
nat-traversal=no
# Create IPSec Policies
/ip ipsec policy \
add comment=\"AWS Tunnel 1\" \
proposal=AWS \
src-address=0.0.0.0/0 dst-address=$VPC_NET \
sa-src-address=$CUSTOMER_PUBLIC_ADDR sa-dst-address=$AWS_TUNNEL1_PUBLIC_ADDR \
tunnel=yes
/ip ipsec policy \
add comment=\"AWS Tunnel 1\" \
proposal=AWS \
src-address=0.0.0.0/0 dst-address=$AWS_TUNNEL1_INSIDE_VIRTUAL_GATEWAY_ADDR/32 \
sa-src-address=$CUSTOMER_PUBLIC_ADDR sa-dst-address=$AWS_TUNNEL1_PUBLIC_ADDR \
tunnel=yes
/ip ipsec policy \
add comment=\"AWS Tunnel 2\" \
proposal=AWS \
src-address=0.0.0.0/0 dst-address=$VPC_NET \
sa-src-address=$CUSTOMER_PUBLIC_ADDR sa-dst-address=$AWS_TUNNEL2_PUBLIC_ADDR \
tunnel=yes
/ip ipsec policy \
add comment=\"AWS Tunnel 2\" \
proposal=AWS \
src-address=0.0.0.0/0 dst-address=$AWS_TUNNEL2_INSIDE_VIRTUAL_GATEWAY_ADDR/32 \
sa-src-address=$CUSTOMER_PUBLIC_ADDR sa-dst-address=$AWS_TUNNEL2_PUBLIC_ADDR \
tunnel=yes
# NAT
/ip firewall nat \
add chain=srcnat \
action=accept \
dst-address=$VPC_NET src-address=$LOCAL_NET
/ip firewall nat \
add chain=srcnat \
action=accept \
dst-address=$LOCAL_NET src-address=$VPC_NET
# IPSec IKE Firewall Filters
/ip firewall filter \
add comment=\"AWS Tunnel 1\" \
chain=input \
protocol=ipsec-esp \
src-address=$AWS_TUNNEL1_PUBLIC_ADDR dst-address=$CUSTOMER_PUBLIC_ADDR
/ip firewall filter \
add comment=\"AWS Tunnel 1\" \
chain=input \
protocol=udp \
src-address=$AWS_TUNNEL1_PUBLIC_ADDR src-port=500 \
dst-address=$CUSTOMER_PUBLIC_ADDR dst-port=500
/ip firewall filter \
add comment=\"AWS Tunnel 2\" \
chain=input \
protocol=ipsec-esp \
src-address=$AWS_TUNNEL2_PUBLIC_ADDR dst-address=$CUSTOMER_PUBLIC_ADDR
/ip firewall filter \
add comment=\"AWS Tunnel 2\" \
chain=input \
protocol=udp \
src-address=$AWS_TUNNEL2_PUBLIC_ADDR src-port=500 \
dst-address=$CUSTOMER_PUBLIC_ADDR dst-port=500
# Add static route
/ip route add distance=1 dst-address=$VPC_NET gateway=$AWS_TUNNEL1_INSIDE_VIRTUAL_GATEWAY_ADDR
/ip route add distance=1 dst-address=$VPC_NET gateway=$AWS_TUNNEL2_INSIDE_VIRTUAL_GATEWAY_ADDR
# Addresses
ip address add address=$AWS_TUNNEL1_INSIDE_CUSTOMER_GATEWAY_ADDR/30 disabled=no interface=ether1
ip address add address=$AWS_TUNNEL2_INSIDE_CUSTOMER_GATEWAY_ADDR/30 disabled=no interface=ether1
" > $CONFIG_FILE_PATH
echo "Your config file has been generated in $CONFIG_FILE_PATH"
exit 0