User Manual

DW Spectrum 3.0
Rev. 072017 Page | 5
Spectrum 3.0 Cloud and Webpage Limitations
Spectrum 3.0 – Cloud
1. Usage and Benefits
a. Manage multiple servers
- Check server status online
- Share and assign permission with other users without providing server information
b. No need to assign static IP address to the server
c. No need to setup DDNS for non-static public IP address
d. No need to create port forwarding rule in the router (some limitations may apply)
2. Limitations
a. No data will be stored online
b. Only works in single router configuration (both server and client)
c. Does not work in Symmetric NAT environment
d. Does not work in more than one dynamic NAT environment (multiple routers)
- If the server is behind multiple routers, only one router should have dynamic NAT configuration
- Applies to both server and client
e. Does not work in VLAN environment.
f. OS or Network with outbound(egress) firewall rules.
- TCP Ports 80, 443 and 3345 must be unblocked on the outbound(egress) rule
3. Disabling Cloud
a. Tech support can run script to disable the Cloud connection on the server
- Reenableing script is also available from Tech Support.
4. Reference
https://en.wikipedia.org/wiki/UDP_hole_punching
https://en.wikipedia.org/wiki/Network_address_translation#Types_of_NAT
https://www.think-like-a-computer.com/2011/09/19/symmetric-nat/
https://www.think-like-a-computer.com/2011/09/16/types-of-nat/
Spectrum 3.0 – Webpage
1. Limitations
a. Does not work with website with pop-ups
b. Does not work with website that require ActiveX , Chrome extensions, or Plug ins.
c. Does not work with Video and Audio streaming website
d. Not able to download files from website
e. Does not save cookies