From 47f8bdbbc20f2a0567c63994926de620616c45ec Mon Sep 17 00:00:00 2001
From: Christian Krakau-Louis <christianlouis@gmail.com>
Date: Mon, 26 Oct 2020 17:18:59 +0100
Subject: [PATCH] Create setup_router.sh

---
 infra-compose-files/setup_router.sh | 77 +++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 infra-compose-files/setup_router.sh

diff --git a/infra-compose-files/setup_router.sh b/infra-compose-files/setup_router.sh
new file mode 100644
index 0000000..72d6a0e
--- /dev/null
+++ b/infra-compose-files/setup_router.sh
@@ -0,0 +1,77 @@
+#   Usage: script <Gatewaynumber> <Host IP> <IPv6 Network ending in ::>
+
+
+
+
+
+nextip(){
+    IP=$1
+    IP_HEX=$(printf '%.2X%.2X%.2X%.2X\n' `echo $IP | sed -e 's/\./ /g'`)
+    NEXT_IP_HEX=$(printf %.8X `echo $(( 0x$IP_HEX + 1 ))`)
+    NEXT_IP=$(printf '%d.%d.%d.%d\n' `echo $NEXT_IP_HEX | sed -r 's/(..)/0x\1 /g'`)
+    echo "$NEXT_IP"
+}
+
+broadcast(){
+    IP=$1
+    IP_HEX=$(printf '%.2X%.2X%.2X%.2X\n' `echo $IP | sed -e 's/\./ /g'`)
+    NEXT_IP_HEX=$(printf %.8X `echo $(( 0x$IP_HEX + 7 ))`)
+    NEXT_IP=$(printf '%d.%d.%d.%d\n' `echo $NEXT_IP_HEX | sed -r 's/(..)/0x\1 /g'`)
+    echo "$NEXT_IP"
+}
+
+
+
+previousip(){
+    IP=$1
+    IP_HEX=$(printf '%.2X%.2X%.2X%.2X\n' `echo $IP | sed -e 's/\./ /g'`)
+    NEXT_IP_HEX=$(printf %.8X `echo $(( 0x$IP_HEX - 1 ))`)
+    NEXT_IP=$(printf '%d.%d.%d.%d\n' `echo $NEXT_IP_HEX | sed -r 's/(..)/0x\1 /g'`)
+    echo "$NEXT_IP"
+}
+
+
+
+
+NETWORK=$(previousip $2)
+HOST=$2
+BROADCAST=$(broadcast $NETWORK)
+BEGINRANGE=$(nextip $HOST)
+ENDRANGE=$(previousip $BROADCAST)
+
+echo Configuring Host: gateway$1
+
+hostnamectl set-hostname gateway$1
+
+echo Host: $HOST
+echo Network: $NETWORK/29
+echo Broadcast: $BROADCAST
+echo Begin DHCP Range: $BEGINRANGE
+echo End DHCP RAnge: $ENDRANGE
+echo IPv6 Network: $3
+
+
+cp /etc/netplan/01-netcfg.yaml /tmp/01-netcfg.yaml.orig
+cp /etc/dhcp/dhcpd.conf /tmp/dhcpd.conf.orig
+cp /etc/radvd.conf /tmp/radvid.conf.orig
+cp /etc/bind/named.conf.options /tmp/named.conf.options.orig
+
+
+sed -i "s/2a01:4f9:4b:15c8::/$3/g" /etc/netplan/01-netcfg.yaml
+sed -i "s/2a01:4f9:4b:15c8::/$3/g" /etc/radvd.conf
+sed -i "s/2a01:4f9:4b:11c6::/$3/g" /etc/radvd.conf
+sed -i "s/135.181.124.25/$HOST/g" /etc/netplan/01-netcfg.yaml
+sed -i "s/135.181.124.25/$HOST/g" /etc/bind/named.conf.options
+sed -i "s/135.181.124.25/$HOST/g" /etc/dhcp/dhcpd.conf
+sed -i "s/135.181.124.24/$NETWORK/g" /etc/dhcp/dhcpd.conf
+sed -i "s/135.181.124.26/$BEGINRANGE/g" /etc/dhcp/dhcpd.conf
+sed -i "s/135.181.124.30/$ENDRANGE/g" /etc/dhcp/dhcpd.conf
+sed -i "s/135.181.124.31/$BROADCAST/g" /etc/dhcp/dhcpd.conf
+sed -i "s/router02.dmz.akamaipartnertraining.com/user$1.esxi.akamaipartnertraining.com/g" /etc/dhcp/dhcpd.conf
+
+
+sudo /etc/init.d/isc-dhcp-server restart
+sudo service bind9 restart
+sudo /etc/init.d/radvd restart
+
+netplan apply