BNL Wireless or internal network are proxied network. Proxy is used to
Information explaining how to set a Web proxy for about all possible utilities and tools is available on The Information and Technology division (ITD) web server page Web Proxy configuration instructions. Instructions for other proxies (FTP, RealPlayer streaming,...) are also available.
Command line tools typically respect the value of http_proxy. The information for such manual proxy can be found as the IP provided here. As an example on how to set http_proxy,you will need to issue a command such as
setenv http_proxy http://192.168.1.130:3128/ # internal
setenv http_proxy http://192.168.1.140:3128/ # external
to have it all set. Note that on this page, by "outside BNL" one means outside the internal network (hence the Wireless).