Dear Lists:
Our z/VM and Linux testing goes in
about 6 month cycles. The last time we used SuSE Linux under z/VM, we had z/VM
5.1. We are now using z/VM 5.2 at the 0501 RSU maintenance level.
All of a sudden now (?), we can no
longer connect to our Linux virtual machines using PuTTY. The network guys
tell me that they can see the request going to the z/VM TCPIP address and
being rerouted to the appropriate IP address for the Linux virtual machine,
but there is no response from Linux. With my virtual Linux machine running I
can not PING the z/VM TCPIP stack nor can I ping my Linux machine from the
MAINT virtual machine. When I try to PING TCPIP from Linux, the Linux console
stops working.
Has anyone else had a similar
problem? Have TCPIP parameters changed that much between z/VM 5.1 and
5.2?
Here is my TCPIP profile
statements
DEVICE OSA0 OSD 00B0 PORTNAME
OSACHP86
PRIROUTER
LINK ETH0 QDIOETHERNET
OSA0
DEVICE ZVMLAN1 OSD 10B0 PORTNAME
ZVMLAN1
LINK ZVMLAN1 QDIOETHERNET
ZVMLAN1
; (End DEVICE and LINK
statements)
;
----------------------------------------------------------------------
HOME
172.17.51.026
ETH0
172.17.230.1
ZVMLAN1
; (End HOME Address
information)
;
----------------------------------------------------------------------
PRIMARYINTERFACE ETH0
;
----------------------------------------------------------------------
GATEWAY
;
Network
First
Link MTU Subnet
Subnet
;
Address
Hop
Name Size
Mask
Value
; ------------- ---------------
-------- ---- ------------- ------------
172.17.50.1
=
ETH0 1500
HOST
;
172
=
ZVMLAN1 1500 0.255.255.0 0.17.230.0
172.17
=
ZVMLAN1 1500 0.0.255.0
0.0.230.0
;
DEFAULTNET
172.17.50.1 ETH0 1500
0
; (End GATEWAY Static Routing
information)
;
----------------------------------------------------------------------
START
OSA0
START
ZVMLAN1
; (End START
statements)
;
----------------------------------------------------------------------
Here is the console log from the
Linux IPL
..done""
Setting up network
interfaces:""
lo
..done""
eth0 qdio: loading QDIO base support version 2
($Revision: 1.145.4.1 $/
$Revision: 1.66.4.1
$)
IPsec Security Association
Database (SADB):
initialized.
IPsec Security Policy Database
(SPD):
initialized.
IPsec PF_KEY V2:
initialized
IPv6 v0.8 (usagi-cvs/IPsec6 based
StS) for
NET4.0
IPv6 over IPv4 tunneling
driver
qeth: loading qeth S/390
OSA-Express driver ($Revision: 1.337.4.7 $/$Revision: 1
.113.4.2 $/$Revision: 1.42.4.1
$:IPv6:VLAN)
qeth: allocated 0 spare
buffers
qeth: Trying to use card with
devnos
0x10B0/0x10B1/0x10B2
qeth: Device 0x10B0/0x10B1/0x10B2
is an OSD Express card (level:
V522)
with link type Gigabit Eth
(portname:
ZVMLAN1)
IP/Netmask:
172.17.230.2 /
255.255.255.0
..done""
My Linux machine is IP address
172.17.230.2.
There is also no PORT statement
entry for port 22 (PuTTY SSH). I did not need one in z/VM 5.1. Has this
changed in 5.2?
Thanks in
advance..
