I set this up and was unable to get it working at first, too. As a test, I destroyed everything then recreated the GuestLAN with the 'eth' keyword to test layer2. Then I added OPTIONS="layer2=1" and MACADDR=<<madeupmacaddr>> to ifcfg-ethX. With the GuestLAN in layer2 mode, I can ping successfully.
As to why layer3/IP mode isn't working, it could be my setup, but I noticed this on the console when I brought the nic online with echo 1 > /sys/bus/...: HCPIPN2833E Error 'E00A'X adding IP address 192.168.7.3 for VSWITCH SYSTEM VSW2. HCPIPN2833E IP address is already in use on the LAN. which is strange because I'm working with 'lan mylan' but a vswitch (with guests on a different subnet) is complaining about IP address in use. I should note that I couldn't get this working with either ARP=no or ARP=yes in ifcfg-ethX, but the error only appeared when I set ARP=yes. If my issues are separate, please don't let them cloud your original issue, but thought I'd share my experience. Can you test a layer2 GuestLAN to see if that works? Do you see any VSWITCH-related messages on the console like I did? my config: RHEL 5.3 z/VM 5.2, level 0602 -Brad Scott Rohling wrote:
We want to establish a small private subnet that some guests can use to communicate with between themselves, with all ports open... On guest A: vmcp define lan mylan type qdio vmcp define nic 900 type qdio vmcp couple 900 to guesta mylan We have an ifcfg-eth2 (this is redhat) that gives an address of 192.168.7.2 using netmask 255.255.255.0 eth2 comes up fine - route shows 192.168.7.0 going over eth2 Unrestricted LAN 'mylan' for guesta shows up doing a Q LAN On guest B: vmcp define nic 900 type qdio vmcp couple 900 to guesta mylan ifcfg-eth2 gives address of 192.168.7.3 using netmask 255.255.255.0 eth2 comes up fine - route shows 192168.7.0 going over eth2 Q LAN shows 2 users connected to 'mylan' Everything looks great -- but they can't talk .. pings, etc just fail... What am I forgetting?? I know I've done this before.... aargh! Any ideas or insight? Scott ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
-- Brad Hinson <[email protected]> Sr. Support Engineer Lead, System z Red Hat, Inc. (919) 754-4198 www.redhat.com/z ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
