Help needed with Fedora11.s390 networking

[vk2kad]

Hi All

I have been playing around with the newly released Fedora 11 for s390 - after a few false starts I now have it running on my Ubuntu 8.10 system.  I decided to move to Ubuntu after having issues with Windows networking.  

I now have an IPLable Fedora running under Hercules 3.06.   I first tried Hercules 3.05 but hit a problem with what appears to be PAV support.  F11 would start to IPL but crashed trying to bring the sysres online.  A helpful hint from Harold G about using the cu=3990-3 parameter advanced me to the stage where I was able to logon - firstly via the Hercules console in line mode - and then via SSH.  The line mode of Hercules where all commands are prefixed with a dot is useful but I haven't worked out how to edit any files - there doesn't seem to be any way to send control key sequences to the editor  (Like ^c and ^x etc)

So I have a running system that I can get into from my local machine - what is eluding me is getting from Fedora to the internet so that I can configure more packages.
Below are some snips of how my networking has been set up...

From the Hercules config file

# networking, channel-to-channel adapter

0600.2  3088 CTCI -n /dev/net/tun -t 1500 192.168.10.13 192.168.10.14
0610.2  3088 CTCI -n /dev/net/tun -t 1500 192.168.10.23 192.168.10.24

# networking, LCS adaptor


0700.2 3088 LCS 192.168.10.8 -n /dev/net/tun -m 01:02:03:04:05:06

Only the first CTCI definition seems to be discovered and working.

From Hercules startup

HHCHD018I Loadable module directory is /usr/lib/hercules
HHCCF065I Hercules: tid=B7AE26B0, pid=7708, pgid=7708, priority=0
HHCDA020I /home/bern/fedora390.img cyls=10017 heads=15 tracks=150255 trklen=56832
HHCTE001I Console connection thread started: tid=B785BB90, pid=7708
HHCTE003I Waiting for console connection on port 3270
HHCCT073I 0600: TUN device tun0 opened
HHCCT073I 0610: TUN device tun1 opened
HHCLC073I 0700: TAP device tap0 opened

Hercules seems happy with the two CTCs and the LCS definition.

From inside  Fedora here is the IFCONFIG output

 bern@localhost ~!$                                                                        
.ifconfig                                                                                  
ifconfig                                                                                    
ctc1      Link encap:Serial Line IP                                                        
          inet addr:192.168.200.3  P-t-P:192.168.200.4  Mask:255.255.255.255                
          UP POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1                                  
          RX packets:4 errors:0 dropped:0 overruns:0 frame:0                                
          TX packets:600 errors:0 dropped:0 overruns:0 carrier:0                            
          collisions:0 txqueuelen:100                                                      
          RX bytes:240 (240.0 b)  TX bytes:52800 (51.5 KiB)                                
                                                                                           
lo        Link encap:Local Loopback                                                        
          inet addr:127.0.0.1  Mask:255.0.0.0                                              
          inet6 addr: ::1/128 Scope:Host                                                    
          UP LOOPBACK RUNNING  MTU:16436  Metric:1                                          
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0                                
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0                              
          collisions:0 txqueuelen:0                                                        
          RX bytes:560 (560.0 b)  TX bytes:560 (560.0 b)                                    
                                                                                           
 bern@localhost ~!$  


Any clues as to what I am missing ????????

Bern

[Frans Pop-3]

On Monday 22 June 2009, vk2kad wrote:
> I have been playing around with the newly released Fedora 11 for s390 -
> after a few false starts I now have it running on my Ubuntu 8.10
> system.  I decided to move to Ubuntu after having issues with Windows
> networking.

Just wondering. If your host system is Ubuntu, then why choose Fedora for
hercules? Wouldn't Debian be a more logical choice? That would for
example give you the same package management system...

> The line
> mode of Hercules where all commands are prefixed with a dot is useful
> but I haven't worked out how to edit any files - there doesn't seem to
> be any way to send control key sequences to the editor  (Like ^c and ^x
> etc)

http://osdir.com/ml/emulators.hercules390.general/2002-12/msg00549.html

> So I have a running system that I can get into from my local machine -
> what is eluding me is getting from Fedora to the internet so that I can
> configure more packages. Below are some snips of how my networking has
> been set up...
[...]
> Any clues as to what I am missing ????????

Did you set up routing for the network traffic from/to hercules on your
*host* system? See for example (look for "Set up iptables"):
http://josefsipek.net/docs/s390-linux/hercules-s390.html

Cheers,
FJP

[jsganino-2]

--- In hercules-390@..., "vk2kad" <vk2kad@...> wrote:

>
> Hi All
>
> I have been playing around with the newly released Fedora 11 for s390 - after a few false starts I now have it running on my Ubuntu 8.10 system.  I decided to move to Ubuntu after having issues with Windows networking.  
>
> I now have an IPLable Fedora running under Hercules 3.06.   I first tried Hercules 3.05 but hit a problem with what appears to be PAV support.  F11 would start to IPL but crashed trying to bring the sysres online.  A helpful hint from Harold G about using the cu=3990-3 parameter advanced me to the stage where I was able to logon - firstly via the Hercules console in line mode - and then via SSH.  The line mode of Hercules where all commands are prefixed with a dot is useful but I haven't worked out how to edit any files - there doesn't seem to be any way to send control key sequences to the editor  (Like ^c and ^x etc)
>
> So I have a running system that I can get into from my local machine - what is eluding me is getting from Fedora to the internet so that I can configure more packages.
> Below are some snips of how my networking has been set up...
>
> From the Hercules config file
>
> # networking, channel-to-channel adapter
>
> 0600.2  3088 CTCI -n /dev/net/tun -t 1500 192.168.10.13 192.168.10.14
> 0610.2  3088 CTCI -n /dev/net/tun -t 1500 192.168.10.23 192.168.10.24
>
> # networking, LCS adaptor
>
>
> 0700.2 3088 LCS 192.168.10.8 -n /dev/net/tun -m 01:02:03:04:05:06
>
> Only the first CTCI definition seems to be discovered and working.
>
> From Hercules startup
>
> HHCHD018I Loadable module directory is /usr/lib/hercules
> HHCCF065I Hercules: tid=B7AE26B0, pid=7708, pgid=7708, priority=0
> HHCDA020I /home/bern/fedora390.img cyls=10017 heads=15 tracks=150255 trklen=56832
> HHCTE001I Console connection thread started: tid=B785BB90, pid=7708
> HHCTE003I Waiting for console connection on port 3270
> HHCCT073I 0600: TUN device tun0 opened
> HHCCT073I 0610: TUN device tun1 opened
> HHCLC073I 0700: TAP device tap0 opened
>
> Hercules seems happy with the two CTCs and the LCS definition.
>
> From inside  Fedora here is the IFCONFIG output
>
>  bern@localhost ~!$                                                                        
> .ifconfig                                                                                  
> ifconfig                                                                                    
> ctc1      Link encap:Serial Line IP                                                        
>           inet addr:192.168.200.3  P-t-P:192.168.200.4  Mask:255.255.255.255                
>           UP POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1                                  
>           RX packets:4 errors:0 dropped:0 overruns:0 frame:0                                
>           TX packets:600 errors:0 dropped:0 overruns:0 carrier:0                            
>           collisions:0 txqueuelen:100                                                      
>           RX bytes:240 (240.0 b)  TX bytes:52800 (51.5 KiB)                                
>                                                                                            
> lo        Link encap:Local Loopback                                                        
>           inet addr:127.0.0.1  Mask:255.0.0.0                                              
>           inet6 addr: ::1/128 Scope:Host                                                    
>           UP LOOPBACK RUNNING  MTU:16436  Metric:1                                          
>           RX packets:8 errors:0 dropped:0 overruns:0 frame:0                                
>           TX packets:8 errors:0 dropped:0 overruns:0 carrier:0                              
>           collisions:0 txqueuelen:0                                                        
>           RX bytes:560 (560.0 b)  TX bytes:560 (560.0 b)                                    
>                                                                                            
>  bern@localhost ~!$  
>
>
> Any clues as to what I am missing ????????
>
> Bern
>

You appear to be using a pair of CTC's to connect to your Fedora, but a couple things look a little off to me:

1) What is on the other end of CTC's?  I think you'll need a program on the other side to accept and reply to the Fedora.  CTC's establish only a point-to-point connection, and I don't see the other endpoint.

2) The IP address you specify inside Fedora is different from the address you specify in the CTC definitions.  I believe they have to match.

I think the CTC's generate the tun0 and tun1 devices, and the LCS generates the tap0 device.  If you have the ability to configure your Fedora to use the LCS, via the tap0 device, and (1) enable IP Forwarding in your Ubuntu, and (2) enable proxy_arp in your Ubuntu, I think you will have an easier time of it.

Jim

[vk2kad]

To all responders - thank you

 

The end result was I had overlooked the IPTABLES configuration in my "host".


 

I followed the instructions in this link and all is now well.  >>>
http://www.josefsipek.net/docs/390-linux/hercules-390.html

 

 I have been able to install one package so far - a "yum install mc"  worked
a treat and I can explore Fedora 11 for s390 to my hearts content.

 

For other mainframers out there - MC (Midnight Commander) is a Linux variant
of the old Norton Commander.

 

For those of us that Linux isn't our first language, Midnight Commander
makes navigation of the filesystem much easier - give it a try.

 

Bern - VK2KAD



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