Re: IP weirdness
Thank you for your explanation and the URL, Vic. I'd like to check it - if www.vm.ibm.com goes online again :-) It seems to be off-line since last Friday or Saturday :-( Does anybody know the reason - or is it only specific German/European problem ? ciao Lutz - Lutz Hamann BETA Systems Software AG z/OS System Engineering - Vic Cross [EMAIL PROTECTED] auTo Sent by: Linux on LINUX-390@VM.MARIST.EDU 390 Port cc [EMAIL PROTECTED] IST.EDU Subject Re: IP weirdness 06.08.2005 16:24 Please respond to Linux on 390 Port [EMAIL PROTECTED] IST.EDU On Saturday 06 August 2005 04:38, Neale Ferguson wrote: NF I have a guest LAN that connects a number of guests. snip NF All but one of the guests can talk to each other, except one NF (I'll call X) which can only talk to the default gateway. If I ping the NF others from X I get no response. The same goes when I go from the any NF other of the guests except R to X. snip NF We are z/VM 4.4 0404. Guest X is SLES9 SP2, Guest R is SLES7, other NF guests are Debian. There are a few VMLAN fixes out since 0404RSU. From recent experience I'd suggest you get right up to date and try again (the qeth driver on the guests other than X might need an update as well, although it strikes me as odd that the SLES 7 system works talking to the SLES 9 SP2 given that its qeth is probably older than the Debians'...). The z/VM team maintains an excellent resource that talks about (among other things) z/VM maintenance levels in support of virtual networking: http://www.vm.ibm.com/virtualnetwork Look for the Virtual Switch and Guest LAN CP Maintenance levels link. NF The other weirdness I see is that all the guests have a subnet mask of NF 255.255.255.192 but Q LAN DETAILS reports everyone as 255.255.255.0. No need to be concerned about this. At earlier levels the display shows the natural network mask (i.e. as if you weren't subnetting) instead of the actual subnet mask in use. On z/VM 5.1 the subnet mask display is removed (replaced by the MAC address, like the multicast display). Cheers, Vic Cross -- 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
Re: IP weirdness
Hi, Lutz. www.vm.ibm.com has moved from 204.146.134.198 to 204.146.134.18. DNS updates are working their way through the Internet, so it's not just a German/European problem. DJ Lutz Hamann wrote: Thank you for your explanation and the URL, Vic. I'd like to check it - if www.vm.ibm.com goes online again :-) It seems to be off-line since last Friday or Saturday :-( Does anybody know the reason - or is it only specific German/European problem ? ciao Lutz - Lutz Hamann BETA Systems Software AG z/OS System Engineering - Vic Cross [EMAIL PROTECTED] auTo Sent by: Linux on LINUX-390@VM.MARIST.EDU 390 Port cc [EMAIL PROTECTED] IST.EDU Subject Re: IP weirdness 06.08.2005 16:24 Please respond to Linux on 390 Port [EMAIL PROTECTED] IST.EDU On Saturday 06 August 2005 04:38, Neale Ferguson wrote: NF I have a guest LAN that connects a number of guests. snip NF All but one of the guests can talk to each other, except one NF (I'll call X) which can only talk to the default gateway. If I ping the NF others from X I get no response. The same goes when I go from the any NF other of the guests except R to X. snip NF We are z/VM 4.4 0404. Guest X is SLES9 SP2, Guest R is SLES7, other NF guests are Debian. There are a few VMLAN fixes out since 0404RSU. From recent experience I'd suggest you get right up to date and try again (the qeth driver on the guests other than X might need an update as well, although it strikes me as odd that the SLES 7 system works talking to the SLES 9 SP2 given that its qeth is probably older than the Debians'...). The z/VM team maintains an excellent resource that talks about (among other things) z/VM maintenance levels in support of virtual networking: http://www.vm.ibm.com/virtualnetwork Look for the Virtual Switch and Guest LAN CP Maintenance levels link. NF The other weirdness I see is that all the guests have a subnet mask of NF 255.255.255.192 but Q LAN DETAILS reports everyone as 255.255.255.0. No need to be concerned about this. At earlier levels the display shows the natural network mask (i.e. as if you weren't subnetting) instead of the actual subnet mask in use. On z/VM 5.1 the subnet mask display is removed (replaced by the MAC address, like the multicast display). Cheers, Vic Cross -- 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
Re: IP weirdness
Thank you, Dave ... I could never imagine that those DNS-updates take more than 2 days :-) But let's wait ... But at least I can acces the site via their IP-address. ciao Lutz - Lutz Hamann BETA Systems Software AG z/OS System Engineering - Dave Jones [EMAIL PROTECTED] are.com To Sent by: Linux on LINUX-390@VM.MARIST.EDU 390 Port cc [EMAIL PROTECTED] IST.EDU Subject Re: IP weirdness 08.08.2005 14:12 Please respond to Linux on 390 Port [EMAIL PROTECTED] IST.EDU Hi, Lutz. www.vm.ibm.com has moved from 204.146.134.198 to 204.146.134.18. DNS updates are working their way through the Internet, so it's not just a German/European problem. DJ Lutz Hamann wrote: Thank you for your explanation and the URL, Vic. I'd like to check it - if www.vm.ibm.com goes online again :-) It seems to be off-line since last Friday or Saturday :-( Does anybody know the reason - or is it only specific German/European problem ? ciao Lutz - Lutz Hamann BETA Systems Software AG z/OS System Engineering - Vic Cross [EMAIL PROTECTED] au To Sent by: Linux on LINUX-390@VM.MARIST.EDU 390 Port cc [EMAIL PROTECTED] IST.EDU Subject Re: IP weirdness 06.08.2005 16:24 Please respond to Linux on 390 Port [EMAIL PROTECTED] IST.EDU On Saturday 06 August 2005 04:38, Neale Ferguson wrote: NF I have a guest LAN that connects a number of guests. snip NF All but one of the guests can talk to each other, except one NF (I'll call X) which can only talk to the default gateway. If I ping the NF others from X I get no response. The same goes when I go from the any NF other of the guests except R to X. snip NF We are z/VM 4.4 0404. Guest X is SLES9 SP2, Guest R is SLES7, other NF guests are Debian. There are a few VMLAN fixes out since 0404RSU. From recent experience I'd suggest you get right up to date and try again (the qeth driver on the guests other than X might need an update as well, although it strikes me as odd that the SLES 7 system works talking to the SLES 9 SP2 given that its qeth is probably older than the Debians'...). The z/VM team maintains an excellent resource that talks about (among other things) z/VM maintenance levels in support of virtual networking: http://www.vm.ibm.com/virtualnetwork Look for the Virtual Switch and Guest LAN CP Maintenance levels link. NF The other weirdness I see is that all the guests have a subnet mask of NF 255.255.255.192 but Q LAN DETAILS reports everyone as 255.255.255.0. No need to be concerned about this. At earlier levels the display shows the natural network mask (i.e. as if you weren't subnetting) instead of the actual subnet mask in use. On z/VM 5.1 the subnet mask display is removed (replaced by the MAC address, like the multicast display). Cheers, Vic Cross -- 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
Re: IP weirdness
You're welcome, Lutz. There was a discussion over the weekend on the VM-ESA list about why it takes so long for DNS updates to propagate. It has to do with the TTL (time to live) values set by various DNS administrators. Have a good week. DJ Lutz Hamann wrote: Thank you, Dave ... I could never imagine that those DNS-updates take more than 2 days :-) But let's wait ... But at least I can acces the site via their IP-address. ciao Lutz - Lutz Hamann BETA Systems Software AG z/OS System Engineering - Dave Jones [EMAIL PROTECTED] are.com To Sent by: Linux on LINUX-390@VM.MARIST.EDU 390 Port cc [EMAIL PROTECTED] IST.EDU Subject Re: IP weirdness 08.08.2005 14:12 Please respond to Linux on 390 Port [EMAIL PROTECTED] IST.EDU Hi, Lutz. www.vm.ibm.com has moved from 204.146.134.198 to 204.146.134.18. DNS updates are working their way through the Internet, so it's not just a German/European problem. DJ Lutz Hamann wrote: Thank you for your explanation and the URL, Vic. I'd like to check it - if www.vm.ibm.com goes online again :-) It seems to be off-line since last Friday or Saturday :-( Does anybody know the reason - or is it only specific German/European problem ? ciao Lutz - Lutz Hamann BETA Systems Software AG z/OS System Engineering - Vic Cross [EMAIL PROTECTED] au To Sent by: Linux on LINUX-390@VM.MARIST.EDU 390 Port cc [EMAIL PROTECTED] IST.EDU Subject Re: IP weirdness 06.08.2005 16:24 Please respond to Linux on 390 Port [EMAIL PROTECTED] IST.EDU On Saturday 06 August 2005 04:38, Neale Ferguson wrote: NF I have a guest LAN that connects a number of guests. snip NF All but one of the guests can talk to each other, except one NF (I'll call X) which can only talk to the default gateway. If I ping the NF others from X I get no response. The same goes when I go from the any NF other of the guests except R to X. snip NF We are z/VM 4.4 0404. Guest X is SLES9 SP2, Guest R is SLES7, other NF guests are Debian. There are a few VMLAN fixes out since 0404RSU. From recent experience I'd suggest you get right up to date and try again (the qeth driver on the guests other than X might need an update as well, although it strikes me as odd that the SLES 7 system works talking to the SLES 9 SP2 given that its qeth is probably older than the Debians'...). The z/VM team maintains an excellent resource that talks about (among other things) z/VM maintenance levels in support of virtual networking: http://www.vm.ibm.com/virtualnetwork Look for the Virtual Switch and Guest LAN CP Maintenance levels link. NF The other weirdness I see is that all the guests have a subnet mask of NF 255.255.255.192 but Q LAN DETAILS reports everyone as 255.255.255.0. No need to be concerned about this. At earlier levels the display shows the natural network mask (i.e. as if you weren't subnetting) instead of the actual subnet mask in use. On z/VM 5.1 the subnet mask display is removed (replaced by the MAC address, like the multicast display). Cheers, Vic Cross -- 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
Re: IP weirdness
Explanation accepted, Dave ! And I should know it - because I am one of those (admins) :-) I always use the $TTL 86400 (default) in our z/OS BIND9- implementations ciao Lutz - Lutz Hamann BETA Systems Software AG z/OS System Engineering - Dave Jones [EMAIL PROTECTED] are.com To Sent by: Linux on LINUX-390@VM.MARIST.EDU 390 Port cc [EMAIL PROTECTED] IST.EDU Subject Re: IP weirdness 08.08.2005 14:32 Please respond to Linux on 390 Port [EMAIL PROTECTED] IST.EDU You're welcome, Lutz. There was a discussion over the weekend on the VM-ESA list about why it takes so long for DNS updates to propagate. It has to do with the TTL (time to live) values set by various DNS administrators. Have a good week. DJ Lutz Hamann wrote: Thank you, Dave ... I could never imagine that those DNS-updates take more than 2 days :-) But let's wait ... But at least I can acces the site via their IP-address. ciao Lutz - Lutz Hamann BETA Systems Software AG z/OS System Engineering - Dave Jones [EMAIL PROTECTED] are.com To Sent by: Linux on LINUX-390@VM.MARIST.EDU 390 Port cc [EMAIL PROTECTED] IST.EDU Subject Re: IP weirdness 08.08.2005 14:12 Please respond to Linux on 390 Port [EMAIL PROTECTED] IST.EDU Hi, Lutz. www.vm.ibm.com has moved from 204.146.134.198 to 204.146.134.18. DNS updates are working their way through the Internet, so it's not just a German/European problem. DJ Lutz Hamann wrote: Thank you for your explanation and the URL, Vic. I'd like to check it - if www.vm.ibm.com goes online again :-) It seems to be off-line since last Friday or Saturday :-( Does anybody know the reason - or is it only specific German/European problem ? ciao Lutz - Lutz Hamann BETA Systems Software AG z/OS System Engineering - Vic Cross [EMAIL PROTECTED] au To Sent by: Linux on LINUX-390@VM.MARIST.EDU 390 Port cc [EMAIL PROTECTED] IST.EDU Subject Re: IP weirdness 06.08.2005 16:24 Please respond to Linux on 390 Port [EMAIL PROTECTED] IST.EDU On Saturday 06 August 2005 04:38, Neale Ferguson wrote: NF I have a guest LAN that connects a number of guests. snip NF All but one of the guests can talk to each other, except one NF (I'll call X) which can only talk to the default gateway. If I ping the NF others from X I get no response. The same goes when I go from the any NF other of the guests except R to X. snip NF We are z/VM 4.4 0404. Guest X is SLES9 SP2, Guest R is SLES7, other NF guests are Debian. There are a few VMLAN fixes out since 0404RSU. From recent experience I'd suggest you get right up to date and try again (the qeth driver on the guests other than X might need an update as well, although it strikes me as odd that the SLES 7 system works talking to the SLES 9 SP2 given that its qeth is probably older than the Debians'...). The z/VM team maintains an excellent resource that talks about (among other things) z/VM maintenance levels in support of virtual networking: http://www.vm.ibm.com/virtualnetwork Look for the Virtual Switch and Guest LAN CP Maintenance levels link. NF The other weirdness I see is that all the guests have a subnet mask of NF 255.255.255.192 but Q LAN DETAILS reports everyone as 255.255.255.0. No need to be concerned about this. At earlier levels the display shows the natural network mask (i.e. as if you weren't subnetting) instead of the actual subnet mask in use. On z/VM 5.1 the subnet mask display is removed (replaced by the MAC address, like the multicast display). Cheers, Vic Cross -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO
Re: IP weirdness
Well, in that case, Lutz, we'll all just blame you then. :-) DJ Lutz Hamann wrote: Explanation accepted, Dave ! And I should know it - because I am one of those (admins) :-) I always use the $TTL 86400 (default) in our z/OS BIND9- implementations ciao Lutz - Lutz Hamann BETA Systems Software AG z/OS System Engineering - Dave Jones [EMAIL PROTECTED] are.com To Sent by: Linux on LINUX-390@VM.MARIST.EDU 390 Port cc [EMAIL PROTECTED] IST.EDU Subject Re: IP weirdness 08.08.2005 14:32 Please respond to Linux on 390 Port [EMAIL PROTECTED] IST.EDU You're welcome, Lutz. There was a discussion over the weekend on the VM-ESA list about why it takes so long for DNS updates to propagate. It has to do with the TTL (time to live) values set by various DNS administrators. Have a good week. DJ Lutz Hamann wrote: Thank you, Dave ... I could never imagine that those DNS-updates take more than 2 days :-) But let's wait ... But at least I can acces the site via their IP-address. ciao Lutz - Lutz Hamann BETA Systems Software AG z/OS System Engineering - Dave Jones [EMAIL PROTECTED] are.com To Sent by: Linux on LINUX-390@VM.MARIST.EDU 390 Port cc [EMAIL PROTECTED] IST.EDU Subject Re: IP weirdness 08.08.2005 14:12 Please respond to Linux on 390 Port [EMAIL PROTECTED] IST.EDU Hi, Lutz. www.vm.ibm.com has moved from 204.146.134.198 to 204.146.134.18. DNS updates are working their way through the Internet, so it's not just a German/European problem. DJ Lutz Hamann wrote: Thank you for your explanation and the URL, Vic. I'd like to check it - if www.vm.ibm.com goes online again :-) It seems to be off-line since last Friday or Saturday :-( Does anybody know the reason - or is it only specific German/European problem ? ciao Lutz - Lutz Hamann BETA Systems Software AG z/OS System Engineering - Vic Cross [EMAIL PROTECTED] au To Sent by: Linux on LINUX-390@VM.MARIST.EDU 390 Port cc [EMAIL PROTECTED] IST.EDU Subject Re: IP weirdness 06.08.2005 16:24 Please respond to Linux on 390 Port [EMAIL PROTECTED] IST.EDU On Saturday 06 August 2005 04:38, Neale Ferguson wrote: NF I have a guest LAN that connects a number of guests. snip NF All but one of the guests can talk to each other, except one NF (I'll call X) which can only talk to the default gateway. If I ping the NF others from X I get no response. The same goes when I go from the any NF other of the guests except R to X. snip NF We are z/VM 4.4 0404. Guest X is SLES9 SP2, Guest R is SLES7, other NF guests are Debian. There are a few VMLAN fixes out since 0404RSU. From recent experience I'd suggest you get right up to date and try again (the qeth driver on the guests other than X might need an update as well, although it strikes me as odd that the SLES 7 system works talking to the SLES 9 SP2 given that its qeth is probably older than the Debians'...). The z/VM team maintains an excellent resource that talks about (among other things) z/VM maintenance levels in support of virtual networking: http://www.vm.ibm.com/virtualnetwork Look for the Virtual Switch and Guest LAN CP Maintenance levels link. NF The other weirdness I see is that all the guests have a subnet mask of NF 255.255.255.192 but Q LAN DETAILS reports everyone as 255.255.255.0. No need to be concerned about this. At earlier levels the display shows the natural network mask (i.e. as if you weren't subnetting) instead of the actual subnet mask in use. On z/VM 5.1 the subnet mask display is removed (replaced by the MAC address, like the multicast display). Cheers, Vic Cross -- For LINUX-390 subscribe / signoff / archive access instructions, send email
Re: IP weirdness
On Saturday 06 August 2005 04:38, Neale Ferguson wrote: NF I have a guest LAN that connects a number of guests. snip NF All but one of the guests can talk to each other, except one NF (I'll call X) which can only talk to the default gateway. If I ping the NF others from X I get no response. The same goes when I go from the any NF other of the guests except R to X. snip NF We are z/VM 4.4 0404. Guest X is SLES9 SP2, Guest R is SLES7, other NF guests are Debian. There are a few VMLAN fixes out since 0404RSU. From recent experience I'd suggest you get right up to date and try again (the qeth driver on the guests other than X might need an update as well, although it strikes me as odd that the SLES 7 system works talking to the SLES 9 SP2 given that its qeth is probably older than the Debians'...). The z/VM team maintains an excellent resource that talks about (among other things) z/VM maintenance levels in support of virtual networking: http://www.vm.ibm.com/virtualnetwork Look for the Virtual Switch and Guest LAN CP Maintenance levels link. NF The other weirdness I see is that all the guests have a subnet mask of NF 255.255.255.192 but Q LAN DETAILS reports everyone as 255.255.255.0. No need to be concerned about this. At earlier levels the display shows the natural network mask (i.e. as if you weren't subnetting) instead of the actual subnet mask in use. On z/VM 5.1 the subnet mask display is removed (replaced by the MAC address, like the multicast display). Cheers, Vic Cross -- 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
