Changes
→Some Technical Details
==Some Technical Details==
* The access points force SSL for authentication and are all signed by the Thawte Premium Server CA.
* The routers are named:
** bur-agw-2.cns.vt.edu
** sha-agw-1.cns.vt.edu
* DHCP is independent of the captive portal authentication and occurs first.
* Before authenticating, IPv4 access to internet sites is not available on any port. Some local sites can be reached.* You can ping (but not traceroute) without logging in. Ping tunneling works both locally and over the open internet. Some users have reported being temporarily banned from DHCP servers when ping tunneling before authenticating.* All wireless networks (including the .1x networks) on campus now use [[rfc:1918|RFC-1918]] addresses from the 172.31.0.0/16 network. These aretranslated 1 to 1 with NAT into 198.82.x.x addresses for access outside the wireless network.* You can IPv6 access IPv6 to local and internet sites like , including web access to [http://www.cns.vt.edu/ CNS] and Google without having to authenticate, is completely unrestricted regardless of authentication status.
==See Also==
