>>> On 1/26/2009 at 10:33 AM, Mark Pace <mpac...@gmail.com> wrote: > I have a Linux guest that I use as a DNS cache server for my z/VM, z/OS, and > other linux guests. > Friday I migrated from z/VM 5.2 to z/VM 5.4 and changed the vswitch from > layer 3 to layer 2. Since this change my z/OS can no longer use the linux > guest as a DNS server any DNS query (NSLOOKUP) returns: > EZB3040E *** Can't find server name for address 199.44.xxx.xx: No response > from server
Are you saying the traffic between z/OS and your DNS server are passing over the same OSA(s)? That is, the traffic is not going out to a physical switch and then back into the CEC? If so, then I'm guessing that the problem is because z/OS "doesn't do" Layer 2. Mark Post
