I can't even find the ping command on the initrd ipl file system--I get command not found. Do you have any tips about this? Thanks for the info about the subnet. Mine is set up like: OS/390 10.254.36.115 <--> Linux 10.254.36.117. We use this as a class-a network, i.e. no subnetting. Should I put my end of the CTC on an entirely different network, e.g. 192.168.99.99, not on any 10.x.x.x network right?
Thanks, Kyle Stewart -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of Robert J Brenneman Sent: Tuesday, February 25, 2003 2:38 PM To: [EMAIL PROTECTED] Subject: Re: URGENT - RH 7.1 (64-bit) LPAR Install CTC Problems Yes, you should be able to ping Linux from the peer at the other end of the CTC connection. If you can ping from the peer (os/390) to your linux system, and you can ping from the world to os/390, then you have a routing problem. I set my CTC connections to OS/390 up like this: world --> 10.5.7.102 (OSA) , OS/390, (CTC) 192.168.23.105 <==> 10.5.23.105 (CTC) ,Linux Where the linux system is on an entirely different subnet than OS/390, and OS/390 acts as a router into that subnet. Note that I have each end of the CTC in different subnets also, I dont know if this is still required, but it used to be. The netmask for each end of the CTC is 255.255.255.255, it's a point to point connection. Jay Brenneman Kyle Stewart <[EMAIL PROTECTED] To: [EMAIL PROTECTED] et> cc: Sent by: Linux on Subject: Re: URGENT - RH 7.1 (64-bit) LPAR Install CTC Problems 390 Port <[EMAIL PROTECTED] IST.EDU> 02/25/2003 03:13 PM Please respond to Linux on 390 Port Shouldn't I be able to ping the initrd ipl'ed version of Linux via the CTC from the partner? I have tried configuring this with an OSA card in passthru mode. Everything (as far as I know) looks good, but we can't ping, telnet nor ssh to the Linux image. There must be something more basic that I am missing here. Regards, Kyle Stewart -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of Mark Post Sent: Saturday, February 22, 2003 9:34 AM To: [EMAIL PROTECTED] Subject: Re: URGENT - RH 7.1 (64-bit) LPAR Install CTC Problems The CTC driver was changed at some point to only use the ctc# name. I don't know that this was ever documented anywhere, but it certainly made a lot of existing literature misleading. You need to make sure that MTU sizes match, yes. That is a typical cause of some very odd behavior. Usually not to the extent that you can't do a ping, though. When you talk to your IP networking folks, have them think of the OS/390 system as being a router in this instance, and your Linux/390 system as a host, since those are the networking roles they're filling. Mark Post -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of Kyle Stewart Sent: Saturday, February 22, 2003 1:47 AM To: [EMAIL PROTECTED] Subject: Re: URGENT - RH 7.1 (64-bit) LPAR Install CTC Problems Importance: High Thanks, Vic. That worked great. I can't use "escon0" for the ifconfig. I have to use ctc0!?!? I still can't get IP up across the link though OS/390's IP show's the link as ready. The subnet mask from my side is 255.255.255.255, but it is 255.0.0.0 from OS/390. Does my IP guy need to set me up with a subnet in the gateway instead of as a host? Would MTU size differences cause a problem? Thanks for any help. Regards, Kyle Stewart -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of Vic Cross Sent: Friday, February 21, 2003 3:34 PM To: [EMAIL PROTECTED] Subject: Re: URGENT - RH 7.1 (64-bit) LPAR Install CTC Problems Kyle, try "ifconfig -a", or "ifconfig ctc0", this should show your ctc0 device. "ifconfig" (without parameters) only shows active (up) devices. If ctc0 appears, just issue "ifconfig ctc0 <ip-address> pointopoint <peer-ip-addr> up" and things should work. Cheers, Vic Cross On Fri, 21 Feb 2003, Kyle & Lisa Stewart wrote: > I am installing RH 7.1 on an LPAR. This is our first mainframe Linux > install. I am trying to use CTC connection to an OS/390 2.10 IP stack to > get to the world. CTCs & devices look good from OS/390 & its IP. However, > on Linux ifconfig only shows the loopback device. I do a cat /proc/chandev > and I can see the two devices as in use and reg. Any ideas about this? > > Thanks, > Kyle Stewart > [EMAIL PROTECTED] >
