diff --git a/infra-compose-files/setup_router.sh b/infra-compose-files/setup_router.sh
index 72d6a0e..ded1939 100644
--- a/infra-compose-files/setup_router.sh
+++ b/infra-compose-files/setup_router.sh
@@ -1,9 +1,6 @@
 #   Usage: script <Gatewaynumber> <Host IP> <IPv6 Network ending in ::>
 
 
-
-
-
 nextip(){
     IP=$1
     IP_HEX=$(printf '%.2X%.2X%.2X%.2X\n' `echo $IP | sed -e 's/\./ /g'`)
@@ -20,7 +17,13 @@ broadcast(){
     echo "$NEXT_IP"
 }
 
-
+endrangeip(){
+    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 + 5 ))`)
+    NEXT_IP=$(printf '%d.%d.%d.%d\n' `echo $NEXT_IP_HEX | sed -r 's/(..)/0x\1 /g'`)
+    echo "$NEXT_IP"
+}
 
 previousip(){
     IP=$1
@@ -32,12 +35,11 @@ previousip(){
 
 
 
-
 NETWORK=$(previousip $2)
 HOST=$2
 BROADCAST=$(broadcast $NETWORK)
 BEGINRANGE=$(nextip $HOST)
-ENDRANGE=$(previousip $BROADCAST)
+ENDRANGE=$(endrangeip $NETWORK)
 
 echo Configuring Host: gateway$1
 
@@ -75,3 +77,23 @@ sudo service bind9 restart
 sudo /etc/init.d/radvd restart
 
 netplan apply
+
+
+sudo apt-get install -y -q docker.io less vim lsof strace nmap 
+
+
+mkdir /iredmail         # Create a new directory or use any directory
+                        # you prefer. `/iredmail/` is just an example
+cd /iredmail
+touch iredmail-docker.conf
+
+echo HOSTNAME=mail.user$i-lab.com >> iredmail-docker.conf
+echo FIRST_MAIL_DOMAIN=user$i-lab.com >> iredmail-docker.conf
+echo FIRST_MAIL_DOMAIN_ADMIN_PASSWORD=4XVjGX45rpZe56cwNNEj >> iredmail-docker.conf
+echo MLMMJADMIN_API_TOKEN=$(openssl rand -base64 32) >> iredmail-docker.conf
+echo ROUNDCUBE_DES_KEY=$(openssl rand -base64 24) >> iredmail-docker.conf
+
+cd /iredmail
+mkdir -p data/{backup,clamav,custom,imapsieve_copy,mailboxes,mlmmj,mlmmj-archive,mysql,sa_rules,ssl,postfix_queue}
+
+docker run --rm  --name iredmail  --env-file iredmail-docker.conf  --hostname mail.user$i-lab.com     -p 80:80     -p 443:443     -p 110:110     -p 995:995     -p 143:143     -p 993:993     -p 25:25     -p 465:465     -p 587:587     -v /iredmail/data/backup:/var/vmail/backup     -v /iredmail/data/mailboxes:/var/vmail/vmail1     -v /iredmail/data/mlmmj:/var/vmail/mlmmj     -v /iredmail/data/mlmmj-archive:/var/vmail/mlmmj-archive     -v /iredmail/data/imapsieve_copy:/var/vmail/imapsieve_copy     -v /iredmail/data/custom:/opt/iredmail/custom     -v /iredmail/data/ssl:/opt/iredmail/ssl     -v /iredmail/data/mysql:/var/lib/mysql     -v /iredmail/data/clamav:/var/lib/clamav     -v /iredmail/data/sa_rules:/var/lib/spamassassin     -v /iredmail/data/postfix_queue:/var/spool/postfix  -d  iredmail/mariadb:stable