transmit/receive light constantly flashing

transmit/receive light constantly flashing

Post by mcjo.. » Mon, 31 Jul 2000 04:00:00



I recently setup a RH6.2 linux box to route the internet to other
machines in my network.  I used ip forwarding without masquerading
because my isp account gives me five ip addresses.  Everything is
working fine except now the transmit/receive light on my ISDN T/A
constantly flashes - even when there should be no traffic (not surfing,
etc.).

I use the following command to log into my isp account:

pppd connect 'chat -V "" ATW2 OK ATD1234567 CONNECT' /dev/modem 115200
crtscts defaultroute noauth user jdoe

and I have the following in my /etc/ppp/pap-secrets file:

jdoe          *       "mypasswd"                       *

I tried using 'tcpdump -i ppp0' but that gives me no output - so it
looks like there is no data going out through ppp0.  I do get lots of
stuff on the screen if I go to a web page.

pppstats -w5 gives me the following:

ROOT> pppstats -w5
      IN   PACK VJCOMP  VJUNC  VJERR  |      OUT   PACK VJCOMP  VJUNC
NON-VJ
 3023987 152874    260     57      0  |  2231019 152909    318     54
152537
    4512    250      0      0      0  |     3505    250      0      0
 250
    4488    249      0      0      0  |     3492    249      0      0
 249
    4527    251      0      0      0  |     3522    251      0      0
 251
    4512    250      0      0      0  |     3506    250      0      0
 250

ROOT>

so it's not a whole lot of data and it doesn't seem to slow down
downloads but it just annoys me to see that light flickering for no
apparent reason.

Anyone have a clue as to what this could be?  Any help suggestions
appreciated.

Thanks,
Martin
mcjose [at] usa [dot] net

* certain names/numbers changed to protect the innocent :)

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transmit/receive light constantly flashing

Post by Clifford Kit » Mon, 31 Jul 2000 04:00:00



> I tried using 'tcpdump -i ppp0' but that gives me no output - so it
> looks like there is no data going out through ppp0.  I do get lots of
> stuff on the screen if I go to a web page.

Upgrade tcpdump, I *think* it was once broken with respect to PPP
interfaces.

There are various causes for what you describe.  High on the list
is NetBIOS chatter by Windows boxes.

--

/* For every credibility gap, there is a gullibility fill.
                -- R. Clopton */

 
 
 

transmit/receive light constantly flashing

Post by mcj.. » Mon, 31 Jul 2000 04:00:00





> > I tried using 'tcpdump -i ppp0' but that gives me no output - so it
> > looks like there is no data going out through ppp0.  I do get lots
of
> > stuff on the screen if I go to a web page.

> Upgrade tcpdump, I *think* it was once broken with respect to PPP
> interfaces.

> There are various causes for what you describe.  High on the list
> is NetBIOS chatter by Windows boxes.

> --

> /* For every credibility gap, there is a gullibility fill.
>                 -- R. Clopton */

I tried a newer version of tcpdump and still no output on ppp0.  Note -
I do get output when I start doing something like surfing, etc.  Nothing
when the xmit/rcv lights are flickering for no apparent reason.  WRT
NetBios chatter - the light flickers even when the windows machine is
shut down.

Thanks for the suggestion,

Martin
mcjose [at] usa [dot] net

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