Re: wheezy, cannot change the address of eth1

[Greg Wooledge <wooledg@eeg.ccf.org>]

> > Start by showing the contents of /etc/network/interfaces.

On Fri, Nov 11, 2016 at 07:59:01PM -0500, Gene Heskett wrote:
> # This file describes the network interfaces available on your system
> # and how to activate them. For more information, see interfaces(5).
> 
> auto lo
> 
> # The loopback network interface
> iface lo inet loopback
> address 127.0.0.1
> netmask 255.255.255.0
> 
> auto eth0
> 
> # regular network for coyote.den
> iface eth0 inet static
> address 192.168.71.3
> netmask 255.255.255.0
> gateway 192.168.71.1
> 
> auto eth1
> 
> # to access reset to 192.168.0.1 routers/switches on the 2nd cat5 port
> iface eth1 inet static
> address 192.168.0.25
> netmask 255.255.255.0
> gateway 192.168.0.1

Others have already pointed this out, but you have two conflicting
"gateway" lines, on two completely separate networks.  You need to
pick one.