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Date: Sun, 12 Feb 2006 21:53:44 +0100
From: GiZmen <gizmen@zion.vsip.pl>
To: net@freebsd.org
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Subject: Re: fastforward problem
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> On Sat, Feb 11, 2006 at 05:35:33PM +0100, GiZmen wrote:
> > I would like to use fastforward option on my freebsd 6.0-stable
> > box. But i have strange problem with it. My box is a router for LAN
> > with IP visible to internet. I am managinc C class network.
> > When i turn on fastforward option any of the computers in my network
> > can't open google.com page. This option is quite good because i have
> > quite a lot interrupts and this option lower this about half.
> > Could anyone tell me why i can't open google.com page ?
> > I have tested different pages and i don't have such problem only with
> 
> (1) can my client resolve google.com in the DNS?
> 
> If the client is some sort of Unix then try
> 
> $ nslookup google.com

Yes that is true that i should give more information so:
this is from client inside LAN:
Non-authoritative answer:
Name:   google.com
Address: 64.233.187.99
Name:   google.com
Address: 72.14.207.99
Name:   google.com
Address: 64.233.167.99

> (2) can my client ping these addresses? That is, is there layer 3 network
> reachability between my network and theirs?

Yes, clients can ping google IPs.

ping 64.233.187.99
PING 64.233.187.99 (64.233.187.99): 56 data bytes
64 bytes from 64.233.187.99: icmp_seq=0 ttl=238 time=155.613 ms
64 bytes from 64.233.187.99: icmp_seq=1 ttl=238 time=152.681 ms

PING 72.14.207.99 (72.14.207.99): 56 data bytes
64 bytes from 72.14.207.99: icmp_seq=0 ttl=237 time=142.530 ms
64 bytes from 72.14.207.99: icmp_seq=1 ttl=237 time=143.632 ms
64 bytes from 72.14.207.99: icmp_seq=2 ttl=237 time=143.517 ms

> (3) what happens when I open a TCP/IP connection to port 80, and manually
> fetch a HTTP page?

When i try connect by telnet i have smth like this.

telnet 64.233.167.99 80
Trying 64.233.167.99...
Connected to 64.233.167.99.
Escape character is '^]'.
GET / HTTP/1.0
Host: google.com


Connection closed by foreign host.

There is nothing happening after pressing enter couple times the connection
is closing by foreigh host.

> OK, that's fine. google.com has redirected me to www.google.com. So try the
> whole process again with www.google.com instead of google.com

I have tested 3 IP that indicates google.com domain and it is the same every
time.

What is wrong with this ?

-- 
Best Regards:
		GiZmen

UNIX is user-friendly; it's just picky about its friends
UNIX is simple; it just takes a genius to understand its simplicity