unreachable host
Garrett Ellis
plug-discuss@lists.plug.phoenix.az.us
Mon, 30 Dec 2002 10:29:05 -0700
Arrgh. Please forgive me for not reading every part of this thread before
jumping in.
----- Original Message -----
From: "Garrett Ellis" <psylence@cox.net>
To: <plug-discuss@lists.plug.phoenix.az.us>
Sent: Monday, December 30, 2002 10:21 AM
Subject: Re: unreachable host
> Pete,
>
> The D-Link is acting as a DHCP server, and any device which gets an IP
from
> it cannot ping your other boxes? Is the D-link giving out 192.168.0/24
> addresses? Also, when you try to ping the Linux machine from your Windows
> box(es), are you pinging by IP or by hostname? Windows hosts on the same
> subnet can resolve each other by hostname but unless you 1) provide name
> resolution services for your network or 2) run Samba, your Windows hosts
> will not know the name of your Linux machine and will only be able to
> successfully ping it by IP.
>
> Also, you said you have port forwarding on your linux host. Are you
running
> packet-filters? If so, is your linux host rejecting ICMP packets on eth1?
> Ping uses ICMP, and if your Linux box blackholes or rejects it, it will
seem
> as though nothing can ping. This might be the case if computers coming
> through your wireless LAN can get to the Internet but can't ping the
gateway
> which forwards their traffic.
>
> Also, check the cable type used to connect your WAP to eth1. You might
need
> a crossover to go straight from the NIC to the WAP, or you might not. It's
> definitely worth checking, though. Connectivity from the WAP to eth1
should
> probably be verified first before exploring anything else I suggested in
> this note.
>
> Happy New Year.
>
> Cheers,
> Garrett
>
> ----- Original Message -----
> From: "Darrell Shandrow" <nu7i@azboss.net>
> To: <plug-discuss@lists.plug.phoenix.az.us>
> Sent: Monday, December 30, 2002 9:23 AM
> Subject: Re: unreachable host
>
>
> > Hi Pete,
> >
> > Hmmm, interesting. Seems you've got a good stumper for me here; seems
as
> > though things should all work fine given its configuration. One thing
to
> > check: are all subnet masks 255.255.255.0 on the 192.168.0.0 network
> > addresses? Also, from the Linux box on 192.168.0.10, can you ping the
> Dlink
> > and both computers behind it?
> >
> > Thanks.
> >
> >
> >
> > ----- Original Message -----
> > From: "mazdaracer" <mazdaracer@earthlink.net>
> > To: <plug-discuss@lists.plug.phoenix.az.us>
> > Sent: Sunday, December 29, 2002 7:08 PM
> > Subject: Re: unreachable host
> >
> >
> > > Indeed I still could use help!
> > >
> > > Going from the external side inward:
> > > DSL router connected to 3 boxes: 2 XP and my Linux
> > > My Linux has 2 ethernet cards, eth0 and eth1.
> > > Eth0 is the external and has a fixed IP;
> > > eth1 is internal and is 192.168.0.10;
> > > eth1 connects to the d link router, a wireless access point with 4
port
> > > hub;
> > > eth1 has port forwarding enabled;
> > > the d link is ip 192.168.0.2 and I have the configuration as if the
> > > assigned ip address is 192.168.0.3 from the isp.
> > > gateway is assigned as .10, my eth1 address.
> > > the d link is also acting as a dhcp server for the wifi and lan
devices
> > > connected thru its hub. Therefor the 2 laptops can connect to the
> > > internet, and they can see each other, but I cannot see the linux box
> > > via ping, ftp or as web server.
> > >
> > > Not concerned with the XP boxes. Just trying to get the laptops that
are
> > > connected to the D Link to access my main linux box, 192.168.0.10.
> > >
> > > Everything off eth1 is 192.168.0.x.
> > >
> > > I tried setting up the D Link with the virtual device settings per the
> > > help. That is, a virtual ftp server as well as web giving the .10
> > > address of my main linux box. But that doesn't seem to work.
> > >
> > > I have suspicions that it's the linux side that is having an issue,
> > > since I can do a status of the system from the linux admin web page
and
> > > it shows it sees the windows 2000 box and gives its name, but it can't
> > > get the name off the linux laptop! Yet when I reboot laptop2 (dual
boot
> > > box from work) it sees the name. Still can't ping the 0.10 box however
> > > from either laptop.
> > >
> > > I figure it's the setup in the D Link more than anything else.
> > > D Link DI-614+ is the device.
> > >
> > > Thanks for taking a shot at it!
> > >
> > >
> > > On Sun, 2002-12-29 at 17:28, Darrell Shandrow wrote:
> > > > Hi Pete,
> > > >
> > > > Though this looks like it should be a relatively simple network from
> the
> > > > available description, I can't totally understand how the devices
have
> > been
> > > > physically connected; I can't read the diagram relationships between
> the
> > > > devices because I am blind. I can certainly assist you, but a text
> > > > description of what is going on would certainly help.
> > > >
> > > > For instance, how are those two XP machines connected to the
network?
> > Via
> > > > that Dlink hub/router combo, or some other way via that first RH 7.3
> > box?
> > > > Please feel free to continue this if you're still in need of an
> assist.
> > > >
> > > > Thanks.
> > > >
> > > > ----- Original Message -----
> > > > From: "mazdaracer" <mazdaracer@earthlink.net>
> > > > To: "plug-discuss@lists.PLUG.phoenix.az.us"
> > > > <plug-discuss@lists.plug.phoenix.az.us>
> > > > Sent: Sunday, December 29, 2002 5:13 PM
> > > > Subject: unreachable host
> > > >
> > > >
> > > > > Perhaps a bit unusual for what may be the norm, but this is what
> I've
> > > > > got setup:
> > > > >
> > > > > + XP2 (public)
> > > > > |
> > > > > + XP1 (public)
> > > > > |
> > > > > DSL Router -+ [eth0 ]
> > > > > [ Redhat 7.3 ]
> > > > > [eth1 (192.168.0.10)]
> > > > > [___________________]
> > > > > |
> > > > > |
> > > > > [ dLink WiFi 614+ Router/Hub ]
> > > > > [ LAN: 192.168.0.2 ]
> > > > > [ WAN: 192.168.0.3 ]
> > > > > [ Gateway: 192.168..10 ]
> > > > > [___DHCP Svr 192.168.0.100 to 120_________]
> > > > > | |
> > > > > Lan WiFi
> > > > > | |
> > > > > Laptop2 Laptop1
> > > > > (RH7.3) (W2k)
> > > > > .102 .100
> > > > >
> > > > >
> > > > > I can ping 102 > 100 and vice versa, but not .10
> > > > > I tried setting the ISP assigned addr to all 0, but then I can't
get
> > > > > out, so I changed it to .3 and the dlink itself is .2. Now I can
get
> > out
> > > > > to the net via .10.
> > > > > Of course I can ping .2 from the laptops to get into the setup
> program
> > > > > for the dlink.
> > > > >
> > > > > Basically I'm not sure how to set up the router properly so I can
> > access
> > > > > my main box (.10) for ftp etc.
> > > > >
> > > > > pete
> > > > >
> > > > >
> > > > >
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