[PLUG] Re: Networking Gremlins

Brad Calvert bcalvert@purdue.edu
Mon, 1 Oct 2001 19:12:53 -0500


Please help?  Anyone?

when I run TCPDUMP, nothing comes up and in ifconfig theres like 300000
dropped packets.  I cant figure it out... it should be recieving something,
the lights are flashing like mad.  but RX and TX are both 0.

Someone has to have an idea.
Brad


"Brad Calvert" <bcalvert@purdue.edu> wrote in message
news:9p7rpa$js$1@mozo.cc.purdue.edu...
> Ok, I am lost here.
> I am running Slack 8 on 2.4.10 as an IP masq server for one other
computer.
> It has been running for 5 or 6 days just fine.   Last night I unplugged
the
> network cable out of the wall that went to my external NIC and the command
> line froze.  This had happened once before and I just plugged it back in
and
> it unfroze.. but not this time.  So I rebooted it and it went through its
> little thing, I log in, and hmmmm I cant get to the internet.  I can ping
> both my internal and external IP.  I can ping my computer inside the LAN,
> and vice versa.  I can ping my external ResNet IP on the Linux computer
from
> my internal LAN Windows computer (so I know the IP masq is working) But I
> can NOT ping my gateway, or anything else outside for that matter.  I know
> my routing tables and interfaces are configured right because when I set
up
> IP masq, I rewrote the entire rc.inet1 file to configure route tables and
> ethernet cards to work 100% every time (and it has for several days after
> reboots and such)   The only thing I can find wrong is in the ARP tables,
it
> lists my gateway hardware address as "incomplete".  But when I try to add
a
> static entry to it describing the true hardware address, it adds the entry
> but it still doesn't work...  Does anyone have an idea of this mystery
> situation?  I have checked everything 12 times.  I like to consider myself
> very strong in networking and troubleshooting, so this kinda bugs me that
I
> cant figure it out.
>
>
> Thanks
> Brad
>
>