Sort of. VM TCP/IP functions like a router. If an internal interface and an external interface are in the same subnet, how can it tell which way to send a packet? The exception is when you use Proxy ARP. I only sort of understand this. The place to go is SHARE, and one of Alan Altmark's presentations. He knows his stuff and is an excellent presenter.
> -----Original Message----- > From: Todd Booher [SMTP:[EMAIL PROTECTED]] > Sent: Thursday, February 28, 2002 5:36 PM > To: [EMAIL PROTECTED] > Subject: Re: Help - z/VM SAF Linux Install > > Being a S390/VM newbie, please excuse my ignorance.... > > Is it a hard and fast rule that the Linux guest OS cannot be in the > same subnet as z/VM? In using other VM products (like vmware) this > doesn't seem to be a problem. > > Just curious. > > Todd > > -----Original Message----- > From: Peter Webb, Toronto Transit Commission [mailto:[EMAIL PROTECTED]] > Sent: Thursday, February 28, 2002 2:08 PM > To: [EMAIL PROTECTED] > Subject: Re: Help - z/VM SAF Linux Install > > > Unless you are using Proxy ARP on z/VM, the real network connection and > the > LINUX guest(s) cannot be in the same subnet. > > > -----Original Message----- > > From: Lionel Dyck [SMTP:[EMAIL PROTECTED]] > > Sent: Thursday, February 28, 2002 4:38 PM > > To: [EMAIL PROTECTED] > > Subject: Help - z/VM SAF Linux Install > > > > I finally have a network connection to my z/VM system so I can start > > to install some little penguins to do more testing. > > > > BUT (isn't there always one) I'm having a 'challenge'. > > > > I'm using SuSE and selecting the iucv connection and that works. It > > asks for my linux ip address which I give it (172.21.249.21) and then > > it asks for the peer address (which I assume means the z/vm ip address > > so I give it that of 172.21.249.253). Prior to this it asked for the > > target host (and said for VM it is normally TCPIP) so I specified > > TCPIP. > > > > The ifconfig runs clean and then linux trys to ping itself (which > > works) and then it tries to ping z/vm and fails. > > > > Any suggestions? > > > > my z/vm is 172.21.249.253 and the gateway to the world (via a 2216) is > > 172.21.249.254 and my netmask for that world is 255.255.255.252. > > > > thx > > -------------------------------------------------------------------- > > Lionel B. Dyck, Systems Software Lead > > Kaiser Permanente Information Technology > > 25 N. Via Monte Ave > > Walnut Creek, Ca 94598 > > > > Phone: (925) 926-5332 (tie line 8/473-5332) > > E-Mail: [EMAIL PROTECTED] > > Sametime: (use Lotus Notes address) > > AIM: lbdyck
