diff --git a/wizard/README.md b/wizard/README.md
index cfb50ed..aac7e02 100644
--- a/wizard/README.md
+++ b/wizard/README.md
@@ -138,4 +138,15 @@ set system login user admin authentication public-keys jafner425@gmail.com key $
 To get a monitoring panel of bandwidth usage listed by connection on the internet, use `sudo iftop -i pppoe1`.
 To instead get usage listed by connection on LAN, use `sudo iftop -p -i eth6`
 
-[`iftop` docs](https://linux.die.net/man/8/iftop). Use [`pcap-filter'](https://www.tcpdump.org/manpages/pcap-filter.7.html) syntax for filtering with the `-f` flag.
\ No newline at end of file
+[`iftop` docs](https://linux.die.net/man/8/iftop). Use [`pcap-filter'](https://www.tcpdump.org/manpages/pcap-filter.7.html) syntax for filtering with the `-f` flag.
+
+# Setting up the Aruba S2500-48P
+Followed the instructions given in [this video](https://www.youtube.com/watch?v=HegeBkglsec)
+
+1. Reset to factory settings.
+2. Basic configuration (using static IP 192.168.1.9).
+3. Flashed new firmware image (7.4.0.7, built 2021_07_07) to default boot partition.
+4. Deleted stacking interfaces for 3rd and 4th SFP+ ports.
+5. Flashed new firmware image (7.4.0.7, built 2021_07_07) to backup boot partition.
+
+Additional reference: https://forums.serverbuilds.net/t/official-aruba-s2500-managed-ethernet-switch-poe-10gsfp/5038
\ No newline at end of file
diff --git a/wizard/scripts/update_hairpin_nat.sh b/wizard/scripts/update_hairpin_nat.sh
index 562e748..5acf9a0 100644
--- a/wizard/scripts/update_hairpin_nat.sh
+++ b/wizard/scripts/update_hairpin_nat.sh
@@ -1,26 +1,23 @@
 #!/bin/vbash
 source /opt/vyatta/etc/functions/script-template
 
-# create copies of config for modification and backup
-cp /config/config.boot /config/config.new
-cp /config/config.boot /config/backups/config.bk-$(date +%Y-%m-%d)
+# get current public IP
+NEW_IP=$(show interfaces pppoe pppoe1 | grep "inet\s" | cut -d ' ' -f 6)
+# get old public IP
+OLD_IP=$(show nat destination rules | grep 1100 | head -1 | tr -s ' ' | cut -d' ' -f 3)
+
+
+show configuration commands | grep $OLD_IP | sed --expression="s/$OLD_IP/$NEW_IP/" > ipupdate.tmp
 
-# switch mode to config
 configure
 
-# get current public IP
-NEW_IP=$(run show interfaces pppoe pppoe1 | grep "inet\s" | cut -d ' ' -f 6)
-# get old public IP
-OLD_IP=$(run show nat destination rules | grep 1100 | head -1 | tr -s ' ' | cut -d' ' -f 3)
+source ipupdate.tmp
 
-# edit the config.new file
-sed -i "s/$OLD_IP/$NEW_IP/" /config/config.new
-
-# apply the new config
-load /config/config.new
 { # try commit, save, exit
     commit && save && exit
 } || { # catch, exit discard and create a very basic error file
     exit discard
     echo "Script failed. Write some real error handling."
 }
+
+rm ipupdate.tmp