DNS and Gateway in FreeBSD?

[Xu Qiang]

Hi, all: 

In setting up my FreeBSD machine in my LAN, I only assigned it an ip address and a netmask, just as the handbook said (http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/config-network-setup.html). 

But after that, it can identify the proxy server's name even i didn't give it an explicit DNS server ip address. (It can ping proxy.abc.com) And I found the gateway is also found automatically by the machine. (It is automatically added into the line beginnin with "defaultrouter=")

Is it designed behavior? I can't understand that. :(

Regards,
Xu Qiang