Do you go thru a firewall?  Do you have /etc/sysconfig/proxy set up if so?

Marcy Cortes
Wells Fargo Services Company

-----Original Message-----
From: Greg Smith [mailto:[EMAIL PROTECTED]
Sent: Tuesday, September 30, 2003 12:17
To: [EMAIL PROTECTED]
Subject: [LINUX-390] weird connection problem on sles8


We finally got our z/VM license and dusted off a couple of our linux
virtual machines.  On our sles8 machine, we can connect to some
external sites but not to others:

linux04:~ # uname -a
Linux linux04 2.4.19-3suse-SMP #1 SMP Mon Mar 3 14:07:59 UTC 2003 s390
unknown
linux04:~ #
linux04:~ # telnet www.ibm.com 80
Trying 129.42.19.99...
Connected to www.ibm.com.
Escape character is '^]'.
Connection closed by foreign host.
linux04:~ #
linux04:~ # telnet www.suse.de 80
Trying 195.135.220.3...
telnet: connect to address 195.135.220.3: Connection timed out
linux04:~ #
linux04:~ # telnet www.sas.com 80
Trying 149.173.5.120...
Connected to www.sas.com.
Escape character is '^]'.
Connection closed by foreign host.
linux04:~ #
linux04:~ # telnet www.linuxvm.org 80
Trying 67.100.74.19...
telnet: connect to address 67.100.74.19: Connection timed out
linux04:~ #

On our sles7 machine we don't see the problem:

linux05:~ # uname -a
Linux linux05 2.4.7-SuSE-SMP #1 SMP Tue Oct 30 22:39:07 GMT 2001 s390
unknown
linux05:~ #
linux05:~ # telnet www.ibm.com 80
Trying 129.42.16.99...
Connected to www.ibm.com.
Escape character is '^]'.
Connection closed by foreign host.
linux05:~ #
linux05:~ # telnet www.suse.de 80
Trying 195.135.220.3...
Connected to www.suse.de.
Escape character is '^]'.
Connection closed by foreign host.
linux05:~ #
linux05:~ # telnet www.sas.com 80
Trying 149.173.5.120...
Connected to www.sas.com.
Escape character is '^]'.
Connection closed by foreign host.
linux05:~ #
linux05:~ # telnet www.linuxvm.org 80
Trying 67.100.74.19...
Connected to www.linuxvm.org.
Escape character is '^]'.
Connection closed by foreign host.
linux05:~ #

I tested this using the exact same ip addresses and osa device numbers
(not at the same time of course).  So it must be something in our sles8
configuration that is causing the problem, but I have no idea what.  Below
are the ifconfig and route displays for each machine (sles8 then sles7):

linux04:~ # ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:00:00:00:00:00
           inet addr:134.67.180.142  Mask:255.255.255.252
           inet6 addr: fe80::200:ff:fe00:0/10 Scope:Link
           UP RUNNING NOARP MULTICAST  MTU:1460  Metric:1
           RX packets:760 errors:0 dropped:0 overruns:0 frame:0
           TX packets:519 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:100
           RX bytes:61648 (60.2 Kb)  TX bytes:68507 (66.9 Kb)
           Interrupt:5

linux04:~ #
linux04:~ # route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
134.67.180.140  0.0.0.0         255.255.255.252 U     0      0        0 eth0
0.0.0.0         134.67.180.141  0.0.0.0         UG    0      0        0 eth0
linux04:~ #


linux05:~ # ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:00:00:00:00:00
           inet addr:134.67.180.142  Mask:255.255.255.252
           inet6 addr: fe80::200:ff:fe00:0/10 Scope:Link
           UP RUNNING NOARP MULTICAST  MTU:1460  Metric:1
           RX packets:342 errors:0 dropped:0 overruns:0 frame:0
           TX packets:211 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:100
           RX bytes:27653 (27.0 Kb)  TX bytes:28586 (27.9 Kb)

linux05:~ #
linux05:~ # route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
134.67.180.140  0.0.0.0         255.255.255.252 U     0      0        0 eth0
0.0.0.0         134.67.180.141  0.0.0.0         UG    0      0        0 eth0
linux05:~ #

Does anyone have any ideas ??

Thanks,
Greg Smith

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