Shorewall users - Jun 2003 - Slightly OT.... (but Tom''s away... )

I have a question about ppp (adsl) connections that is not directly
shorewall related.

What is the interface attached to the ADSL modem actually
used for?

The only thing attached to that interface is the ADSL, and 
the byte count is higher than the ppp0 interface.

SuSE manuals hint that I don''t even have to give this
interface an IP, as its just used as sort of a dummy.  
I did give it an IP am reluctant to remove it since it is
in Australia, and I manage it from Alaska.

Eth0 is the nic connected to ASDL and it EXCEEDS all traffic
to my LAN (eth1) by several orders of magnitude.  It also
exceeds my ppp0 connection by half again as much.

Abreviated traffic counts from ifconfig below....

eth0      Link encap:Ethernet  HWaddr 00:A0:C9:CF:8B:76
            RX bytes:12059835 (11.5 Mb)  TX bytes:10218519 (9.7 Mb)

eth1      Link encap:Ethernet  HWaddr 00:50:2C:00:21:D0
          RX bytes:297189 (290.2 Kb)  TX bytes:755377 (737.6 Kb)

lo        Link encap:Local Loopback
          RX bytes:3050628 (2.9 Mb)  TX bytes:3050628 (2.9 Mb)

ppp0      Link encap:Point-to-Point Protocol
          RX bytes:7379883 (7.0 Mb)  TX bytes:6260577 (5.9 Mb)

-- 
John Andersen - NORCOM
http://www.norcomsoftware.com/

On Thu, 19 Jun 2003, John Andersen wrote:
> What is the interface attached to the ADSL modem actually
> used for?
It is used as the end-point for the ADSL connection and the bridge between
ethX and pppX.  If you look in the config files you will see seomthing
like.

DEVICE=ppp0
eth=eth0
> The only thing attached to that interface is the ADSL, and
> the byte count is higher than the ppp0 interface.
Yes, that is to be expected as more protocol information is added to the
data stream for transport over the ADSL link.
> SuSE manuals hint that I don''t even have to give this
> interface an IP, as its just used as sort of a dummy.
> I did give it an IP am reluctant to remove it since it is
> in Australia, and I manage it from Alaska.
Correct.  See mine...

eth0      Link encap:Ethernet  HWaddr 00:60:08:37:66:DC
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1574186 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1477434 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:751099324 (716.3 Mb)  TX bytes:219868836 (209.6 Mb)
          Interrupt:11 Base address:0xecc0
> Eth0 is the nic connected to ASDL and it EXCEEDS all traffic
> to my LAN (eth1) by several orders of magnitude.  It also
> exceeds my ppp0 connection by half again as much.
Yes, that is to be expected.

Ed

-- 
SARS - The only virus not spread by Outlook
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