[COLUG] ipkungfu/squid problems

[Robert Grimm]

I can't change the address of the router. I'd like to, but I can't.  
There are systems I can't access that needs to talk directly to the  
router, so it has to stay at 192.168.1.1.

On Mar 7, 2008, at 10:09 PM, Brian Miller wrote:

>
> On Wed, 2008-03-05 at 12:52 -0500, Robert Grimm wrote:
>> Here is a little more information on my network configuration. I may
>> repeat myself here a bit. There is a Cisco router at 192.168.1.1. It
>> has a subnet mask of 255.255.255.0. The squid box is at  
>> 192.168.1.200.
>> It is the gateway for most of the computers. The current squid box is
>> working as a transparent proxy. The new server works as a direct
>> replacement for the old squid box when the interfaces are on  
>> different
>> subnets. Could I change the netmask on the router and on eth0 to
>> 255.255.252.0 and use an address on the 192.168.0.0 network for the  
>> IP
>> of eth0? Would this disrupt anything?
>>
>
> Unless your clients need to talk directly to the Internet without  
> going
> through your proxy server, there is no need to change the subnet mask.
> If you leave the mask at 255.255.255.0 for clients, proxy, and router,
> you get the proxy to work the way you built it.  The clients should be
> set to have a default gateway of 192.168.1.200.  The proxy server  
> would
> have it's default route set to the IP address of the Cisco router, in
> this case 192.168.0.1.  Although the clients might technically still  
> be
> able to reach the router, if you do a traceroute (tracert on Windows)
> you should see that it takes two hops to reach the Cisco router.  On  
> the
> other hand, a traceroute to 192.168.1.200 will only take a single hop.
> With a subnet of 255.255.255.0, the clients won't know how to talk
> directly to 192.168.0.1.  And your router will redirect all traffic  
> for
> the clients through the proxy server.
>
>
>
>
>
>
>
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--
Robert Grimm
(614) 212-4625
http://www.datablitz.net