Changing Source IP Address using NAT Policy on Sonicwall

February 1, 2017 Jordansphere Sonicwall

I wanted to test a service where an internal IP address behind a Sonicwall used a different public IP address when connecting to a particular remote POP3 server. The following screenshot shows how this can applied   Jordansphere-PrivateIP = Alt-External-IP = spare public IP address that was allocated to my connection via ISP = REMOTE IP address […]


DPI-SSL and SSL v3.0 on Sonicwall

February 25, 2015 Jordansphere Sonicwall

Scenario. I have a bespoke webserver behind a Sonicwall NSA 4500 (in HA mode) running DPI-SSL. I upgraded the webserver. This all went to plan but I couldn't access the server either via the VPN or externally.   We performed some packet traces and noticed that SSL v3.0 seemed to be initiated when connecting via the VPN or externally but […]


Adding a Secondary WAN Subnet to Sonicwall and a Cisco

November 22, 2013 Jordansphere Hardware

Example: Current WAN IP range: Sonicwall WAN IP:  Cisco Router:          New WAN IP range: You can add a static ARP entry on the Sonicwall but there is an easier method. Simply set a […]


sonicwall cisco secondary wan isp,

ICMP Packet Dropped Due to Policy – Over Sonicwall VPN

October 2, 2013 Jordansphere Sonicwall

Site A required the following site-to-site VPN created.   The above was all created with ease and the VPN connection came up. Site A then requested that the ONLY service allowed over the VPN was "Ping". The following 2 firewall rules were applied: VPN -> VLAN ZONE And the reverse for VLAN ZONE-> VPN However, this didn't work […]


vpn sonicall ping,

Error connecting to an Oracle DB over Sonicwall site-to-site VPN

November 29, 2012 Jordansphere Sonicwall

Scenario: A Sonicwall TZ170 (standard firmware) was replaced with a TZ215 (Enhanced ). After installation we could not establish a connection to the main Oracle DB over a site-to-site VPN. Pings and all other services were working fine.   To get this working go to Firewall Settings -> Advanced Select SQL*Net From Enable FTP Transformations […]


oracle vpn sonicwall error site to site,

How much bandwidth does Netflix use?

August 31, 2012 Jordansphere Sonicwall

I was curious as to how much bandwidth Netflix uses when watching a movie. I decided to monitor this by watching Warrior starring Tom Hardy and Joel Edgerton. Runtime was 2:19 hrs. My 21CN broadband connections sync rate is ~6Mbps. Using my PS3 plugged directly into a Sonicwall TZ 210 I SNMP monitored the port […]


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