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.. |
- z/VM and SuSE Linux Ver 8 Raymond Noal
- Re: z/VM and SuSE Linux Ver 8 P. Raulerson