MAC addresses are in all frames. The Bell South answer does not make
sense. If MAC address filtering were done it would not allow the other
services.
Start your trouble shooting with port 80, htttp, the browser.
Dave
On Fri, 24 Mar 2000 18:35:29 -0500 Hal Burgiss <[EMAIL PROTECTED]>
writes:
> On Fri, Mar 24, 2000 at 03:50:27PM -0500, Ray Parish wrote:
> > I have bellsouth adsl connected to my linux box. I have
> > ip_forwarding set to true and have the masquerade ipchains script
> > working. Behind the firewall on my second interface (eth1) I have
> > connected several winblowze machines. the windows machines can
> > telnet, ftp, mail, and so on except surfing.
> > I called bellsouth.net and asked if they are filtering by MAC
> > address and they told me yes.?
>
> Watch their tech support. Sometimes you get clueless trainees. The
> MAC
> address is used only to authenticate your one dynamic IP. I have BS
> ADSL, and with Linux box on internal network, and no problems of any
> kind surfing, etc (and the MAC addresses are different). I don't
> know
> windows enough to say why they might be different. Also, BS uses
> cache
> servers for all http traffic. Maybe this is a factor (I doubt it).
>
> Maybe I am wrong here, but when the internal network requests go out
> thru the Linux masquerader, they are showing its IP and MAC. The
> problem is elsewhere.
>
>
> > Is there a way to spoof the MAC address when having the Linux box
> > doing NAT/ and FW?
>
> I believe this is already the case. Check it with 'tcpdump -e' on
> eht0.
>
> --
> Hal B
> [EMAIL PROTECTED]
> --
>
>
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