Re: Please help with my bridge/router

[Alexandru Dragoi <alex@zoomnet.ro>]

Serge Matovic wrote:
> Hi to all. I'm a bit hesitant to bug you with this
> basic problem of mine, and I just hope that I'm not
> wasting your time.
> OK, here is the situation. I have a Linux machine with
> 4 NICs. I have configured 3 of these NICs into a
> bridge (br0), and the 4th NIC is connected to an ADSL
> modem (ppp0), which, in turn, is connected to
> Internet. This NIC is getting a DHCP address from my
> ISP. I'm using the iptable script from dranch's
> IP-MASQ-HOWTO. (and I tried many other ones, as well).
>
> Now here is the problem: When I try to go Internet
> from my Client computer (connected to one of the 3
> NICs of this bridge/router) some sites (like
> Google.ca) connect and work perfectly, ***BUT*** some
> sites (like globaltv.com) do not load at all. But I
> know that they work fine when I connect to them
> without going thru my bridge/router.
>
> Does anyone have a thought on why some sites work and
> some don't?
>
> Many thanks, and best regards,
> serge.
>
>
>
>  
> ____________________________________________________________________________________
> Never miss an email again!
> Yahoo! Toolbar alerts you the instant new Mail arrives.
> http://tools.search.yahoo.com/toolbar/features/mail/
>
>   
Try:

iptables -I FORWARD -j TCPMSS  -o ppp0 -p tcp --tcp-flags SYN,RST SYN 
--clamp-mss-to-pmtu


In the man table of iptables you can see the explanation too.