Wed, 16 Jun 1999 10:08:47 -0600

 


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Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit Because of the limitation of the newer OSA cards when port sharing between lpars (i.e. TCP/IP communications between lpars is not possible), we have setup a CTC connection. That works fine, but I'm looking for a way to use the same hostname for both the OSA and CTC home addresses. When a OS/390 TCP/IP user accesses the TCP/IP stack on another lpar, I'd like the hostname to resolve to the CTC home address. From all other TCP/IP clients, I'd like the hostname to resolve to the OSA card home address. Is this possible? How can it be configured? TIA Dave



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Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit Because of the limitation of the newer OSA cards when port sharing between lpars (i.e. TCP/IP communications between lpars is not possible), we have setup a CTC connection. That works fine, but I'm looking for a way to use the same hostname for both the OSA and CTC home addresses. When a OS/390 TCP/IP user accesses the TCP/IP stack on another lpar, I'd like the hostname to resolve to the CTC home address. From all other TCP/IP clients, I'd like the hostname to resolve to the OSA card home address. Is this possible? How can it be configured? TIA Dave



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Content-Type: text/plain Couldn't you do this using hlq.HOSTS.LOCAL and a makesite on the client host? > ---------- > From: Dave Myers[SMTP:Dave.Myers@TWCABLE.COM] > Reply To: IBM TCP/IP List > Sent: Wednesday, June 16, 1999 10:42 AM > To: IBMTCP-L@VM.MARIST.EDU > Subject: Can CTC and OSA use same hostname? > > Because of the limitation of the newer > OSA cards when port sharing between lpars > (i.e. TCP/IP communications between lpars is not possible), > we have setup a CTC connection. > > That works fine, but I'm looking for a way to > use the same hostname for both the OSA and CTC home addresses. > > When a OS/390 TCP/IP user accesses the TCP/IP stack > on another lpar, I'd like the hostname to resolve to the > CTC home address. From all other TCP/IP clients, I'd like the > hostname to resolve to the OSA card home address. > > Is this possible? How can it be configured? > > TIA > Dave >







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Content-Type: text/plain Couldn't you do this using hlq.HOSTS.LOCAL and a makesite on the client host? > ---------- > From: Dave Myers[SMTP:Dave.Myers@TWCABLE.COM] > Reply To: IBM TCP/IP List > Sent: Wednesday, June 16, 1999 10:42 AM > To: IBMTCP-L@VM.MARIST.EDU > Subject: Can CTC and OSA use same hostname? > > Because of the limitation of the newer > OSA cards when port sharing between lpars > (i.e. TCP/IP communications between lpars is not possible), > we have setup a CTC connection. > > That works fine, but I'm looking for a way to > use the same hostname for both the OSA and CTC home addresses. > > When a OS/390 TCP/IP user accesses the TCP/IP stack > on another lpar, I'd like the hostname to resolve to the > CTC home address. From all other TCP/IP clients, I'd like the > hostname to resolve to the OSA card home address. > > Is this possible? How can it be configured? > > TIA > Dave >



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Content-type: text/plain; charset=us-ascii This is curious. There have been several posts over the past month mentioning the impossibility of communications between lpars that are sharing an OSA port. But we've been doing this without any problems for several months now. We have two OSA-2 FDDI cards. Both are shared between two lpars. Traffic can go out through the OSA card in chpid 00 from one lpar and into the other lpar via the same OSA card in chpid 00. The OSA cards we have are type & model 9672-002 at OSA processor code level 6.4D and EC level E13021A. We have VIPA addresses in both lpars with SOURCEVIPA specified. Could that be the difference? Grant White Duke Energy Corp. "Harris, Brad" <Brad.Harris@MSFC.NASA.GOV> on 06/16/99 11:53:42 Please respond to "IBM TCP/IP List" <IBMTCP-L@VM.MARIST.EDU> To: IBMTCP-L@VM.MARIST.EDU cc: (bcc: James G White/Corp/DukePower) Subject: Re: Can CTC and OSA use same hostname? Couldn't you do this using hlq.HOSTS.LOCAL and a makesite on the client host? > ---------- > From: Dave Myers[SMTP:Dave.Myers@TWCABLE.COM] > Reply To: IBM TCP/IP List > Sent: Wednesday, June 16, 1999 10:42 AM > To: IBMTCP-L@VM.MARIST.EDU > Subject: Can CTC and OSA use same hostname? > > Because of the limitation of the newer > OSA cards when port sharing between lpars > (i.e. TCP/IP communications between lpars is not possible), > we have setup a CTC connection. > > That works fine, but I'm looking for a way to > use the same hostname for both the OSA and CTC home addresses. > > When a OS/390 TCP/IP user accesses the TCP/IP stack > on another lpar, I'd like the hostname to resolve to the > CTC home address. From all other TCP/IP clients, I'd like the > hostname to resolve to the OSA card home address. > > Is this possible? How can it be configured? > > TIA > Dave >







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Content-type: text/plain; charset=us-ascii This is curious. There have been several posts over the past month mentioning the impossibility of communications between lpars that are sharing an OSA port. But we've been doing this without any problems for several months now. We have two OSA-2 FDDI cards. Both are shared between two lpars. Traffic can go out through the OSA card in chpid 00 from one lpar and into the other lpar via the same OSA card in chpid 00. The OSA cards we have are type & model 9672-002 at OSA processor code level 6.4D and EC level E13021A. We have VIPA addresses in both lpars with SOURCEVIPA specified. Could that be the difference? Grant White Duke Energy Corp. "Harris, Brad" <Brad.Harris@MSFC.NASA.GOV> on 06/16/99 11:53:42 Please respond to "IBM TCP/IP List" <IBMTCP-L@VM.MARIST.EDU> To: IBMTCP-L@VM.MARIST.EDU cc: (bcc: James G White/Corp/DukePower) Subject: Re: Can CTC and OSA use same hostname? Couldn't you do this using hlq.HOSTS.LOCAL and a makesite on the client host? > ---------- > From: Dave Myers[SMTP:Dave.Myers@TWCABLE.COM] > Reply To: IBM TCP/IP List > Sent: Wednesday, June 16, 1999 10:42 AM > To: IBMTCP-L@VM.MARIST.EDU > Subject: Can CTC and OSA use same hostname? > > Because of the limitation of the newer > OSA cards when port sharing between lpars > (i.e. TCP/IP communications between lpars is not possible), > we have setup a CTC connection. > > That works fine, but I'm looking for a way to > use the same hostname for both the OSA and CTC home addresses. > > When a OS/390 TCP/IP user accesses the TCP/IP stack > on another lpar, I'd like the hostname to resolve to the > CTC home address. From all other TCP/IP clients, I'd like the > hostname to resolve to the OSA card home address. > > Is this possible? How can it be configured? > > TIA > Dave >



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Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit I think that gets searched after DNS lookups. At least that's what I'm seeing. The hostname in our DNS server translates to the OSA card, which is what we need it to do. If local host table was searched first, I'd be in business. Dave ----- Original Message ----- From: Harris, Brad <a href="mailto:Brad.Harris@MSFC.NASA.GOV">Brad.Harris@MSFC.NASA.GOV/a>> Newsgroups: bit.listserv.ibmtcp-l To: <IBMTCP-L@VM.MARIST.EDU> Sent: Wednesday, June 16, 1999 9:53 AM Subject: Re: Can CTC and OSA use same hostname? > Couldn't you do this using hlq.HOSTS.LOCAL and a makesite on the client > host? > > > ---------- > > From: Dave Myers[SMTP:Dave.Myers@TWCABLE.COM] > > Reply To: IBM TCP/IP List > > Sent: Wednesday, June 16, 1999 10:42 AM > > To: IBMTCP-L@VM.MARIST.EDU > > Subject: Can CTC and OSA use same hostname? > > > > Because of the limitation of the newer > > OSA cards when port sharing between lpars > > (i.e. TCP/IP communications between lpars is not possible), > > we have setup a CTC connection. > > > > That works fine, but I'm looking for a way to > > use the same hostname for both the OSA and CTC home addresses. > > > > When a OS/390 TCP/IP user accesses the TCP/IP stack > > on another lpar, I'd like the hostname to resolve to the > > CTC home address. From all other TCP/IP clients, I'd like the > > hostname to resolve to the OSA card home address. > > > > Is this possible? How can it be configured? > > > > TIA > > Dave > >







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Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit I think that gets searched after DNS lookups. At least that's what I'm seeing. The hostname in our DNS server translates to the OSA card, which is what we need it to do. If local host table was searched first, I'd be in business. Dave ----- Original Message ----- From: Harris, Brad <a href="mailto:Brad.Harris@MSFC.NASA.GOV">Brad.Harris@MSFC.NASA.GOV/a>> Newsgroups: bit.listserv.ibmtcp-l To: <IBMTCP-L@VM.MARIST.EDU> Sent: Wednesday, June 16, 1999 9:53 AM Subject: Re: Can CTC and OSA use same hostname? > Couldn't you do this using hlq.HOSTS.LOCAL and a makesite on the client > host? > > > ---------- > > From: Dave Myers[SMTP:Dave.Myers@TWCABLE.COM] > > Reply To: IBM TCP/IP List > > Sent: Wednesday, June 16, 1999 10:42 AM > > To: IBMTCP-L@VM.MARIST.EDU > > Subject: Can CTC and OSA use same hostname? > > > > Because of the limitation of the newer > > OSA cards when port sharing between lpars > > (i.e. TCP/IP communications between lpars is not possible), > > we have setup a CTC connection. > > > > That works fine, but I'm looking for a way to > > use the same hostname for both the OSA and CTC home addresses. > > > > When a OS/390 TCP/IP user accesses the TCP/IP stack > > on another lpar, I'd like the hostname to resolve to the > > CTC home address. From all other TCP/IP clients, I'd like the > > hostname to resolve to the OSA card home address. > > > > Is this possible? How can it be configured? > > > > TIA > > Dave > >


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