Linux-Networking Digest #451, Volume #10 Wed, 10 Mar 99 18:13:47 EST
Contents:
Re: DHCP and NDS (Raymond Doetjes)
Re: tunneling through a campus LAN ? (Stefan Schlott)
Re: windows98 networking (Raymond Doetjes)
Re: ppp-on/ppp-on-dialer/ppp-off??? (David Kirkpatrick)
Re: Dial-on-Demand hassles (Malware)
Re: problem with routing (Raymond Doetjes)
Token Ring ringstatus change errors (Dan Hill)
oops: routing only one-way ? (Thomas Bahls)
KPPP works but route doesn't ("Bob Stickel")
Re: modem suggestions? (Richard Nelson)
Linux for Netware (Paul Godward)
Re: routing tables - just being curious (TS Stahl)
AIX 4.3.2 mounting Linux NFS Exports (Brian Gorka)
Linux + Novell 4.11 (El Hombre)
Re: Can you tell the speed of your dialup connection?? ("Scott R. Knight")
Re: can't get outside of local intranet! (Luc Leblond)
SAMBA for dummies! Great site (BabylonGod)
Re: How many telnet users supported per bandwidth? (Raymond Doetjes)
ethertap not working (Chris Studholme)
----------------------------------------------------------------------------
From: Raymond Doetjes <[EMAIL PROTECTED]>
Subject: Re: DHCP and NDS
Date: Wed, 10 Mar 1999 22:39:50 +0100
Although I'm a real Linux freak I would advice you to purchase a "low"
range cisco for this trick. It is a bit easier to configure and maintain
and it does'nt need that much power! A PC has turning parts wich sooner
or later need to be replaced.
(Though Linux can broadcast default gateway address and IP addresses
through DHCP). It won't and will never give WINS addresses since that is
M$ abuse of the DHCP protocoll. Cisco uses the abusive SHCP protocoll
also.
Raymond
------------------------------
From: [EMAIL PROTECTED] (Stefan Schlott)
Subject: Re: tunneling through a campus LAN ?
Date: Wed, 10 Mar 1999 20:40:32 GMT
On 8 Mar 1999 21:00:39 GMT, "Cameron Spitzer" <[EMAIL PROTECTED]> wrote:
>Now, I want to add a Linux PC "rebelbase" to marsnet, and the users on
>rebelbase want to see the Internet as if they were on babylonstation.
>If they can't have total transparency the rebels will take what they
>can get.
>
>We have:
>
> [marsnet] [earthnet] [Internet]
>
>rebelbase --+-- router ==[ISDN]== router --+-- firewall --+--+--+-- bablylonstation
> | |
> | |
> marsbase earthmole
>
>Can this be done? What do we run, where? Which HOWTOs cover this
>kind of tunneling?
Usually, tunneling is used for different applications :-)
As far as I understand, you can (hypothetically, of course) read
babylonstation's web pages from rebelbase. If this is the case,
httptunnel might do for you - have a look at Freshmeat:
http://www.freshmeat.net
afaik, the latest version is 1.94. Hope it helps (I havn't
tried it myself...),
Stefan.
--
*-- Please cut here! --------------------------------- Thanks! --*
E-mail: [EMAIL PROTECTED]
Homepage: http://www.uni-ulm.de/~s_sschlo
PGP key-ID: 0x37F2A89D (available on homepage/key servers)
*-------!! Mind the anti-spam tag in the e-mail address !!-------*
------------------------------
From: Raymond Doetjes <[EMAIL PROTECTED]>
Subject: Re: windows98 networking
Date: Wed, 10 Mar 1999 22:47:25 +0100
Install SamBA.
------------------------------
From: David Kirkpatrick <[EMAIL PROTECTED]>
Subject: Re: ppp-on/ppp-on-dialer/ppp-off???
Date: Wed, 10 Mar 1999 16:09:21 +0000
They are in /usr/doc/ppp-2.3.5 see below.
Generic info for RH 5.2. Assumption: you installed PPP.
===================================================================
RH puts ppp scripts in /usr/doc/ppp-2.3.5
Copy ppp-on, ppp-on-dialer, options to /etc/ppp.
BTW:I have copied /dev/null to options.
These need to be made execuitable. Execute chmod 755 on ppp-on
and ppp-on-dialer
===================================================================
Modify ppp-on by editing the following:
TELEPHONE, ACCOUNT, PASSWORD
==================================================================
For exec command. put in correct device probably
cua1 (for RH5.2) and modem speed
===================================================================
Edit /etc/resolv.conf and put in ISP nameserver given you by your
ISP.
nameserver xxx.xxx.xxx.xxx
nameserver xxx.xxx.xxx.xxx
You usually get two from your isp.
====================================================================
execute ppp-on & and monitor logs with
tail -f /var/log/messages.
+++++++++++++++++++++++++++++++++++++++
OR:
Control Pannel: Modem configuration. Select
correct device. (used in ppp-on script)
===================================================================
Control Pannel: Network Configurator: Routing: Defaults blank
PPP0 will use this so needs a blank here.
===================================================================
Network Configurator: Names: insert ISP
nameserver addresses.
===================================================================
System Configurator: PPP/SLIP/PLIP: Configurations, Add
Fill in Hardware, Communication. Assumes PAP not
required - If things do not work check with ISP.
==================================================================
Save quit. Verify /etc/resolv.conf has your ISP
addresses.
==================================================================
The linuxconf sets up most things but does not
setup the ppp-on script - that must be done by hand.
==================================================================
Testing:
cd /etc/ppp
execute ppp-on
Ping locally between your network machines to insure your ok.
Ping some net address by ip number like 10.220.10.120. Once ppp
is connected.
Verify your name server working, ping boston.com or do an
nslookup microsoft.com
When not dialed in ping someother box locally by name
to insure yor local resolution is working say if
done by the /etc/hosts and /etc/lmhosts.
=============================================================
If things do not work turn on debugging or up the level of
debugging. Edit the scripts and put debug 7 in there.
For LCP errors two common causes are the ISP is not responding
to you - he's down or you and the ISP are out of sync on PAP.
omega wrote:
>
> Hi,
> I'm a new linux user!
> When I was checking for my PPP software,I couldn't find the scripts:
> ppp-on,ppp-o-dialer and ppp-off.(After using the command:
> ls /etc/ppp ).
> Info:redhatlinux 5.2.
> Please help.
> Thanks.
> omega,
> [EMAIL PROTECTED]
--
[EMAIL PROTECTED]
[EMAIL PROTECTED]
[EMAIL PROTECTED]
------------------------------
From: Malware <[EMAIL PROTECTED]>
Crossposted-To: alt.linux,alt.os.linux
Subject: Re: Dial-on-Demand hassles
Date: Wed, 10 Mar 1999 20:50:31 +0100
Hi Derek,
you wrote:
> > Did you made you nameserver authoritive for reverse-lookups of local
> > addresses?
>
> Don't think so, but I disabled it completely now, and it seems to work..
Wrong step. Above is something you should have done. If you don't do it,
accessing services on your machine from local client may cause a
connection created do to the reverse lookups.
> > Is your currently assigned IP number (especially if it is a
> > dynamicly assigned one) for the ppp-Interface in /etc/hosts and the
> > search-order setted correcly?
>
> IP number for the ppp-interface? You mean the one where I go "pppd
> :207.50.128.2"? No, that one actually isn't in my hosts file.
No the other one. According to your qouted config line you'll get the IP
assigned dynamicly, so you'll probably have to use a dummy IP for the
ppp-Interface aslong as you are not connected. Add this to your hosts
files. Additionally it's a good idea to restore this address after
hanging up. Sorry but I am not familiar with the new demand-dialing
feature of pppd 2.3.5. I can only speak from the corner of an ISDN user
running ipppd.
> > If you use diald you might want to set tcpdump listening on sl0 to catch
> > the packet causing the connection.
> I can't get diald to compile-- I've tried on 2.0.36 and 2.2.2-- neither
> worked. Redefinition in the same place or something it kept saying. Thanks
> for your help! :)
It was not intended as a suggestion to run diald but as hint that you
might have to listen on a different interface if you use it.
Malware
------------------------------
From: Raymond Doetjes <[EMAIL PROTECTED]>
Subject: Re: problem with routing
Date: Wed, 10 Mar 1999 21:39:51 +0100
What is the ip address of your linuxbox and network mask?
And what is the ip address on your Windows box and netmask?
I don't see in this table how the kernel knows what device it should use
to get to network 192.168.1.0 it says it's a class C network
(netmask-255.255.255.0) but it doesn't say gateway 192.168.1.1 for
instance that's very strange.
When configured right it should'nt give any problems. I have setup
several hunderds of Linux and Windows systems without a single IP
problem.
Raymond
average wrote:
>
> i have a two machine network linux & win95 on twisted pair through a
> hp 28684a hub
> the problem i have is both machines can ping them selves (nic &
> localhost) but cannot ping each other. at this point in time i haven't
> set up anything to do with samba.
>
> Kernel IP routing table
> Destination Gateway Genmask Flags MSS Window irtt
> Iface
> zeus.tulku.net * 255.255.255.255 UH 1500 0 0
> eth0
> 192.168.1.0 * 255.255.255.0 U 1500 0 0
> eth0
> 127.0.0.0 * 255.0.0.0 U 3584 0 0
> lo
> default gyver.tulku.net 0.0.0.0 UG 1500 0 0
> eth0
>
> the hub works (it was used by a friend) i have changed the cables, all
> the lights that
> should be on are on and flashing (data lights on the cards, the hub etc)
>
> any help
> baz
------------------------------
From: Dan Hill <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Subject: Token Ring ringstatus change errors
Date: Wed, 10 Mar 1999 22:31:12 +0000
I am running RedHat 5.2 fully updated with two ethernet cards and one
Olicom ISA 3118 Tokenring card. I am regulary find the following error
on my pc.
eth2: status: type 3, closed 0, maxfrs 3800, prot=1, spec=2000
eth2: Ringstatus change, soft error
I have changed cables and MAU ports with no success in beating this.
Can someone direct me where to find some explanations as to what this
printout means or give a brief explanation?
Thanks in advance
Dan
------------------------------
From: [EMAIL PROTECTED] (Thomas Bahls)
Subject: oops: routing only one-way ?
Date: Wed, 10 Mar 1999 17:34:27 GMT
Hi group,
please forgive me if I'm wrong here but I am not reading c.o.l.n on a
regular basis and didn't find anything helpful in the FAQs/DejaNews during
a quick research.
There's a nice little but horribly annoying problem: My SuSE Linux 5.2
won't act as a router properly. eth0 and eth1 are set up fine, routing
table is ok (very simple, two class C networks, no RFC1819 but really
officially assigned ones). Datagrams from the "internal" subnet (eth0)
*are* being routed to the "public" subnet (eth1). According to tcpdump,
even the answers (e.g., ping ICMP echo replies) arrive with correct IP
addresses at the public eth1. But, however, they do not appear on the
internal eth0 where the destination hosts is waiting for it. How can that
be ??? IP_FORWARDING is on, masquerading and firewalling disabled as well
as not compiled into the kernel (have done this explicitly just to be sure
but didn't help anyway).
So there's nothing but the silly kernel ;-) in between that could block it
all. Confusingly, it routes datagrams to outside but doesn't let answers
in again...
Any comments what I could go after would be greatly appreciated !
Thanks, Tom.
--
Thomas Bahls, who finally believes in Murphy's Law. Always. Everywhere.
#include <std/disclaimer.h> && Opinions/views are entirely private. No
implication on what my employer might believe in may be derived from it.
------------------------------
From: "Bob Stickel" <[EMAIL PROTECTED]>
Subject: KPPP works but route doesn't
Date: Wed, 10 Mar 1999 16:26:20 -0500
For whatever reason, the ppp0 entry isn't in my routing...if I route add
default ppp0, it shows up and all is well for that dialup session with KPPP
or minicom or whatever.... My eth0 and localhost addresses and routes both
show as expected and are fine...my ip for eth0 is fixed for a direct T1
connection and I'm planning on using the modem with diald as a fail safe
back to the server. Curently, I'm just dialing and surfing as I d/l dox and
config the machine...it's offline at the moment hence this Win32 mail...
I'm not sure what to do to make ppp0 a permanent route config. I have used
linuxconf and thought that would ot it but it didn't...of course, I could be
doing something wrong as well...
Thanks
Bob
------------------------------
From: Richard Nelson <[EMAIL PROTECTED]>
Subject: Re: modem suggestions?
Date: 10 Mar 1999 19:32:16 GMT
Hello,
The Actiontec Electronics,
DESKLINK MASTER works beautifully under Linux , is internal, and based off
of the Lucent Venus chipset.
Rick
Ted wrote:
> I am most likely going to be purchasing a new modem, because I currently
> have a winmodem. Does anybody have any suggestions of modems that are
good
> and easy to install on linux. (cheap too). I am running redhat 5.2
>
> I've read that I should go with an external... any thoughts?
>
> If you could, please reply to my e-mail address, as well as the
newsgroup.
>
> Thanks,
> Ted
>
> [EMAIL PROTECTED]
> [EMAIL PROTECTED]
> [EMAIL PROTECTED]
>
>
>
================== Posted via SearchLinux ==================
http://www.searchlinux.com
------------------------------
From: Paul Godward <[EMAIL PROTECTED]>
Subject: Linux for Netware
Date: Wed, 10 Mar 1999 14:41:04 -0800
I am running RedHat 5.2 and would like to get access to my Netware
servers. I know that Caldera makes a Linux for Netware product that
will work with RedHat 5.1. I haven't had much luck getting it working
and was wondering if there were any "tricks" to it. Any help would be
greatly appreciated.
Paul
------------------------------
From: TS Stahl <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.help
Subject: Re: routing tables - just being curious
Date: Wed, 10 Mar 1999 13:12:48 -0600
Andy Jaworski wrote:
>
> My first question is: why is my local host 127.0.0.1 not 127.0.0.0. It has
> been like this from the beginning (i.e. from original installation of
> RH5,2). Does it matter?
>
By definition the loop back is 127.0.0.1 127.0.0.0 means the whole network, as does
192.168.48.0 DFIU by using route adds and deletes.
> The second question: how did the 192.168.48.0 line get into the routing
> table and what iis it for?
>
>
> As you can see I am just being curious and try to understand a little more.
> When I fire up my PPP connection, the routing table changes to:
>
> Destination Gateway Genmask Flags Metric
> Use Iface
> 206.156.201.131 0.0.0.0 255.255.255.255 UH 0
> 0 ppp0
> 127.0.0.1 0.0.0.0 255.255.255.255 UH 0
> 0 lo
>
> 192.168.48.0 0.0.0.0 255.255.255.255 U 0
> 0 eth0
> 0.0.0.0 206.156.201.131 255.255.255.0 UG 0
> 0 ppp0
>
> Everything seems to work fine, but in order for this to work I had to add
> "route del default"
> line to my ppp-up script just before the pppd line. Also, I had to add the
> following line
> route add -net default gw `hostname`
> to my ppp-off script.
>
> Is this correct? Unfortunately, for this to work for all users on my Linux
> box, I had to make the route command suid.
>
>
No, it is not 'correct', but if it works, who am I to judge. Use the redhat control
panel and edit the ppp interface. Check the box marked 'make default route' (or
something similar). There was a bug evident in RH 5.1 (don't know if it propagated
to 5.2), where defining two default routes would render the route command useless.
You would know this not only by no traffic being routed, but by typing route, and
getting nothing. If you have this problem (sounds like you do) then add somewhere
in the ppp script process a route delete default. MAKE SURE that you defined the
pppX interface to assume default routing. Also, of course, don't delete the default
route after it has been established as pppX.
BTW, 'route add default pppX' should be enough.
PS, the X in pppX is probabbly 0 (zero), as evidenced by your route output.
Hope this helps, and happy computing.
--
Scott Stahl
MIS Asst.
Illinois Housing Development Authority
------------------------------
From: Brian Gorka <[EMAIL PROTECTED]>
Subject: AIX 4.3.2 mounting Linux NFS Exports
Date: 10 Mar 1999 16:54:40 -0500
I've got a Redhat 5.0 box running nfs-server 2.2beta37 and all Redhat
related updates. I'm mounting some exported filesystems to AIX
4.3.2. The exports mount OK, but every so often, the nfsd crashed
without so much as a core. Or I get NFS write errors. Since I have
the same filesystem exported to other hosts that don't get the error,
and if I don't mount the export to the AIX 4.3.2 system (4.2.1 works
fine) I can only assume it's somthing specific to AIX 4.3.2 and
Linux. How can I debug this without a core file? The nfs debugging
options don't seem to work either... (nfsd --debug {class})...
Help!
--
[EMAIL PROTECTED] <Brian Gorka>
They say a little knowledge is a dangerous thing. But what of the man
who possesses too much knowledge? If knowledge is power...and power
corrupts...how will humankind ever survive?
------------------------------
From: El Hombre <[EMAIL PROTECTED]>
Subject: Linux + Novell 4.11
Date: Wed, 10 Mar 1999 09:52:35 +0100
I'm trying to set up a small Network at home. I already have a Novell
4.11 Server running. When I ping from my PC, I can see both Servers. If
I use the command "display servers" on the Novell Server I can see the
Linux Server.
Now my question, I would like to bind my Linux Server into the NDS. How
can I do this?
------------------------------
From: "Scott R. Knight" <[EMAIL PROTECTED]>
Subject: Re: Can you tell the speed of your dialup connection??
Date: Wed, 10 Mar 1999 14:12:45 -0500
This is a cryptographically signed message in MIME format.
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I use pload:
http://ma.us.mirrors.freshmeat.net/appindex/1999/01/03/915405270.html
--
Scott R. Knight mailto:[EMAIL PROTECTED] http://www.redseaco.com/
4885-A McKnight Road, #298
Pittsburgh, PA 15237-3972
Phone 888-891-5862
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==============ms1AE965B4A4878238D210606C==
------------------------------
From: Luc Leblond <[EMAIL PROTECTED]>
Subject: Re: can't get outside of local intranet!
Date: Wed, 10 Mar 1999 16:08:20 -0500
==============D7E1E385925240E058A4C607
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit
Hi,
depending of you linux distribution, you can try the command "netconfig" (slak)
or netcfg (rh).
That way, you'll be able to add your gateway...the reason why you can't access
outside the LAN.
Later
[EMAIL PROTECTED] wrote:
> Hey there...I'm a linux newbie. All installed well and is running good. I
> have recently installed RedHat 5.2 on my box here at work. I have a static
> ip, but we have a netmask of 255.255.240.0. I cannot find a place to setup my
> gateways (I did enter them in RH's setup program). I can ping anything inside
> the intranet but cannot get out to the internet at large. Also, is there a
> service like WINS I can setup...and where do I enter that? Please reply to me
> here at work if you could... [EMAIL PROTECTED] Thanks so much!
>
> Chris Williams
>
> -----------== Posted via Deja News, The Discussion Network ==----------
> http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
--
Communication Accessible Montreal
===========================================================
Luc Leblond ( [EMAIL PROTECTED] )
Technical Support Technique
1205 ave Papineau, bureau 050
Montreal(Quebec) H2K 4R2 514-529-3000 ext:300
===========================================================
Votre �tat de compte -----> http://WWW.CAM.ORG/fr/soutien/maintain
Your account status -----> http://WWW.CAM.ORG/en/accsupp/maintain
NB: Ce courriel ne contien pas d'accent afin d'etre compatible avec tous
systemes d'exploitations. ( Linux, Unix )
==============D7E1E385925240E058A4C607
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit
<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
Hi,
<p>depending of you linux distribution, you can try the command "netconfig"
(slak) or netcfg (rh).
<br>That way, you'll be able to add your gateway...the reason why you can't
access outside the LAN.
<p>Later
<br>
<br>
<br>
<br>
<p>[EMAIL PROTECTED] wrote:
<blockquote TYPE=CITE>Hey there...I'm a linux newbie. All installed well
and is running good. I
<br>have recently installed RedHat 5.2 on my box here at work. I have a
static
<br>ip, but we have a netmask of 255.255.240.0. I cannot find a place to
setup my
<br>gateways (I did enter them in RH's setup program). I can ping anything
inside
<br>the intranet but cannot get out to the internet at large. Also, is
there a
<br>service like WINS I can setup...and where do I enter that? Please reply
to me
<br>here at work if you could... [EMAIL PROTECTED] Thanks so much!
<p>Chris Williams
<p>-----------== Posted via Deja News, The Discussion Network ==----------
<br><a
href="http://www.dejanews.com/">http://www.dejanews.com/</a>
Search, Read, Discuss, or Start Your Own</blockquote>
<pre>--
Communication Accessible Montreal
===========================================================
Luc Leblond ( [EMAIL PROTECTED] )
Technical Support Technique
1205 ave Papineau, bureau 050
Montreal(Quebec) H2K 4R2 514-529-3000 ext:300
===========================================================
Votre état de compte -----> <A
HREF="http://WWW.CAM.ORG/fr/soutien/maintain">http://WWW.CAM.ORG/fr/soutien/maintain</A>
Your account status -----> <A
HREF="http://WWW.CAM.ORG/en/accsupp/maintain">http://WWW.CAM.ORG/en/accsupp/maintain</A>
NB: Ce courriel ne contien pas d'accent afin d'etre compatible avec tous
systemes d'exploitations. ( Linux, Unix )</pre>
</html>
==============D7E1E385925240E058A4C607==
------------------------------
From: [EMAIL PROTECTED] (BabylonGod)
Subject: SAMBA for dummies! Great site
Date: 10 Mar 1999 22:37:44 GMT
http://www.sfu.ca/~yzhang/linux/samba/index.html
This is a really good site for SAMBA beginners!
-Peter
------------------------------
From: Raymond Doetjes <[EMAIL PROTECTED]>
Subject: Re: How many telnet users supported per bandwidth?
Date: Wed, 10 Mar 1999 23:02:41 +0100
We have a customer that uses our vetrinary software over a 64Kb/sec ISDN
line via a Cisco and they have about 7 sessions without any real delays.
Though print jobs take down the performance!
But it also depends on how efficient the application is written. If you
only update the changed places than you save a lot off bandwidth. If you
just redraw your complete screen than your bandwidth is scares!
We have a pretty efficient ASCII system and well I guess in normal use
we can even handle 12 to 15 user simultaniously.
Raymond
------------------------------
From: [EMAIL PROTECTED] (Chris Studholme)
Subject: ethertap not working
Date: Wed, 10 Mar 1999 22:41:38 GMT
I need some help getting started with the ethertap driver. I'm using 2.2.2
on one machine and 2.2.3 on another and have the same problem on both. The
kernel seems to be compiled properly with ethertap as a module.
# insmod ethertap
succeeds. Also:
# ifconfig tap0 192.168.1.1
# ifconfig tap0
tap0 Link encap:Ethernet HWaddr FE:FD:00:00:00:00
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
Interrupt:5
# ll /dev/tap0
crw-r--r-- 1 root root 36, 16 Mar 10 13:14 /dev/tap0
My code:
const char* tapdevice = "/dev/tap0";
fprintf(stderr,"connecting to ethertap device %s...",tapdevice);
int tap = open(tapdevice,O_RDWR);
if (tap==-1) {
fprintf(stderr," failed(%d)\n", errno);
return -1;
}
fprintf(stderr," %d\n", tap);
when compiled and executed, yeilds:
connecting to ethertap device /dev/tap0... failed(19)
Error 19 is device not found, right? /var/log/messages contains:
Mar 10 15:37:11 eeyore modprobe: can't locate module char-major-36
What's wrong with this? I'm doing my best to follow what documentation
I could find, but it doesn't work. Could someone with code please post
it. Thanks.
Chris.
------------------------------
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