can't ping the internet

[Rodney Davis]

My /etc/resolv.conf was incorrect.  Everything appears to be good again.

Thanks,

Rodney

-----Original Message-----
From: Dusty [mailto:dusty at sandust.com]
Sent: Friday, February 09, 2001 1:52 PM
To: Linux & Unix Advocates & Users
Subject: [luau] Re: can't ping the internet


What are you trying to ping?  An IP or a NAME (try pinging an IP on the
internet 204.71.200.67, 216.115.105.2, 204.71.200.68, 204.71.200.74,
204.71.200.75, 204.71.202.160)?  Does DNS work?  Do you have a firewall that
is blocking your traffic, does your router know what to do with traffic from
you IP?  What do you get when you ping an IP. What do you get when you ping
a Name?  Try traceroute.

Dusty


> Yes, I can ping both localhost and my router but nothing
> outside of that.
>
> Thanks,204.71.200.67, 216.115.105.2, 204.71.200.68,
>
> rodney
>
> -----Original Message-----
> From: Chris Wong [mailto:wongc at math.ed.hawaii.edu]
> Sent: Friday, February 09, 2001 12:19 PM
> To: Linux & Unix Advocates & Users
> Subject: [luau] Re: can't ping the internet
>
>
> On Fri, 9 Feb 2001, Rodney Davis wrote:
>
> > I ran tcpdump and I can see traffic so I think it is not a
> > hardware problem.
> >
> > netstat -rn returns the following:
> >
> > 206.127.244.32    0.0.0.0        255.255.255.240   U 0 0 0 eth0
> > 127.0.0.0    0.0.0.0        255.0.0.0       U 0 0 0 lo
> > 0.0.0.0        206.127.244.33    0.0.0.0           U 0 0 0 eth
> >
> > I am not sure what the middle one is.  It does not appear on any
> > other machine in my office.
>
> That's localhost. Leave it be....removing that might cause problems...
> WILL cause problems.
>
> > Should I delete this?  And if so, how do I do that? route del 127.0.0.0
> > doesn't work!
>
> Can you ping the router? The 206.127.244.33?
>
> > -----Original Message-----
> > From: Dusty [mailto:dusty at sandust.com]
> > Sent: Friday, February 09, 2001 10:11 AM
> > To: Linux & Unix Advocates & Users
> > Subject: [luau] Re: can't ping the internet
> >
> >
> > Run "tcpdump" or someother sniffer on the system (on teh interface that
> goes
> > to the internet).  If you see traffic your hardware and physical
> connection
> > are ok.  If not it is a hardware problem.
> >
> > The typical problem is your defaultroute.  Your "netatat -rn" should
have
> > lines something like this:
> >
> > 192.168.1.0   0.0.0.0  255.255.255.0  eth0
> >
> > 0.0.0.0   192.168.1.1   0.0.0.0   eth0
> >
> > You should have one route for your subnet and one route that is 0.0.0.0
to
> > your defaultrouter.
> >
> > Dusty
> >
> >
> >
> > > > I need help with configuring my linux box's network configuration.
I
> > > > can ping localhost and the router but I cannot ping any machines
> > > > outside the network.  ifconfig shows all of the right addresses and
I
> > > > have looked at /etc/hosts and /etc/networks and they appear to be
the
> > > > same as other machines on this network. When I use the netstat
command
> > > > nothing shows "connected". Can anyone point me in the right
direction
> > > > for resolving this dilemma?
> > >
> > > There are so many things that could go wrong with this that I couldn't
> > > even begin.
> > >
> > > Check your default route. (netstat -rn)
> > >
> > > Double check your network settings. Triple check them.
> > >
> > > Check your hub.
> > >
> > > check your resolv.conf. See if your DNS server is working.
> > >
> > > Check your ethernet card.
> > >
> > > netstat won't tell you what you need to know. I can't diagnose the
> problem
> > > without getting details. It's like telling your mechanic, my car
doesn't
> > > work.
> > >
> > >
> > >
> > >
> > >
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