What about routing? If they are identical, but you can't reach one from the outside... it sounds like routing on the problem guest -- or firewall rules on the 'outside'.
Does 'route -n' look identical on each guest? Scott 2009/10/30 van Sleeuwen, Berry <[email protected]> > Hi Jonathan, > > Yes they are. All guests are allowed on the vswitch with vlan 105. And > they all register on the vswitch with the correct vlan and IP address. > > The TMR registers as: > Adapter Owner: NLPTMR01 NIC: 0F00.P00 Name: DEVCLAW > Porttype: Access > RX Packets: 5907581 Discarded: 0 Errors: 0 > TX Packets: 10793515 Discarded: 0 Errors: 0 > RX Bytes: 6753504379 TX Bytes: 14545624744 > Device: 0F02 Unit: 002 Role: DATA vPort: 0105 Index: 0105 > VLAN: IPv4 0105 Assigned by system > VLAN: IPv6 0105 Assigned by system > Options: Broadcast Multicast IPv6 IPv4 VLAN > Unicast IP Addresses: > 161.89.54.127 MAC: 02-00-00-00-00-26 > FE80::200:0:100:26 MAC: 02-00-00-00-00-26 Local > Multicast IP Addresses: > 224.0.0.1 MAC: 01-00-5E-00-00-01 > FF02::1 MAC: 33-33-00-00-00-01 > FF02::1:FF00:26 MAC: 33-33-FF-00-00-26 Local > > It's similar for all other guests. > > Berry. > > > -----Original Message----- > From: Linux on 390 Port [mailto:[email protected]] On Behalf Of > Quay, Jonathan (IHG) > Sent: vrijdag 30 oktober 2009 12:50 > To: [email protected] > Subject: Re: Guest network connection error > > Berry, > > Do the routing tables on the 3 linux instances look identical? Can you > see all the vswitches register all the IPs? Usually when we have a > problem like this its ACL's. > > ________________________________ > > From: Linux on 390 Port on behalf of van Sleeuwen, Berry > Sent: Fri 10/30/2009 5:41 AM > To: [email protected] > Subject: Guest network connection error > > > > Hello listers, > > We have a group of 3 SLES8 guests running Tivoli. Two of them, TEC and > TGW, have a fully functional network connection. But the third, the TMR, > can't connect to the outside world. This is the case since last Friday, > after a reboot of the guest. > > The guests run on zVM 5.4 RSU 802. The guests are connected to two > VSWITCHes. One is the production network and the second is a dedicated > network for TSM backup purposes. Accessing the TMR can not be done from > outside the network. But we can logon to the TEC and then connect to the > TMR from there. So I'd expect the connection within VM (vswitch and > such) is correct. > > Now we are puzzeled as to how to proceed. We have been working with > several groups (network, linux, VM etc) to get to the root of this > problem but with no success so far. The network configs in all 3 guests > are the same, other than the obvious IP addresses. We did see that a > ping had been travelling through the backup network but disabling this > network didn't make the production network available. Restarting the > network, detach/define of the NIC etc didn't help either. > > Do you have any suggestions what we can do next? > > Met vriendelijke groet/With kind regards, Berry van Sleeuwen Flight > Forum 3000 5657 EW Eindhoven > > ( +31 (0)6 22564276 > > > > > > Atos Origin <http://www.atosorigin.com/> > > MO CF SC Mainframe Services > > > > > > ---------------------------------------------------------------------- > 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 > > > > ---------------------------------------------------------------------- > 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 > > > ---------------------------------------------------------------------- > 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 > ---------------------------------------------------------------------- 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
