RE: [U2] default gateway problem
Before removing, try (at unix prompt) #netstat -rn You should see both old and new gateway ip address. To remove the old gateway address, use #smitty tcpip -- Further configuration Static Routes At Remove a Static Route Remove Static Route Type or select values in entry fields. Press Enter AFTER making all desired changes. [Entry Fields] Destination TYPEnet + * DESTINATION Address[0] (dotted decimal or symbolic name) * Default GATEWAY Address[xx.xx.xx.xx] (dotted decimal or symbolic name) Network MASK (hexadecimal or dotted decimal) [] Destination Address - use '0' to denote 'default' xx.xx.xx.xx - Old gateway ip address HTH -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob Witney Sent: Wednesday, August 06, 2008 5:15 PM To: u2-users@listserver.u2ug.org Subject: [U2] default gateway problem Ok I know that this is a tad of topic but I am hoping that those nice IBM chaps are monitoring We are on a Pseries running AIX 5.3 and Universe 10 We have changed out default gateway, I know, leave things alone I say, if its not broken don't fix it, but you know what there network techies are like, fiddle, fiddle, fiddle Anyway: we user smit assist - Configure Network Communications' - TCP/IP Startup - pick our interface Drop down to default gateway and change the ipaddress Works fine Until we re-boot at which point it reverts to the default gateway we had before the change It may be we should run ifconfig or something to lock our change in but I can't see it anywhere in the books Any suggestions would be great Bob Witney IT Senior Explore Worldwide Nelson House 55 Victoria Road Farnborough Hants GU14 7PA Confidentiality Notice: This e-mail and any attachments are intended solely for the addressee and may contain confidential or privileged information. If you are not the named addressee, or the person responsible for delivering the message to the named addressee, please notify the sender as soon as possible and delete the material from your computer. This message will be protected by copyright. If it has come to you in error, you must not take any action based on its contents nor must you copy or show the message to any person other than the intended recipient. _ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
RE: [U2] default gateway problem
Many thanks to everyone who came back to me on this -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ken Wallis Sent: 07 August 2008 07:38 To: u2-users@listserver.u2ug.org Subject: RE: [U2] default gateway problem I believe Bob was saying he had done exactly that Doug. My experience is that changing the default gateway can be a pain and the only way to be absolutely sure when this sort of stuff happens is to remove the interface via smitty devices then add it back again and configure it. Sorry. The other possibility is that you have two or more physical interfaces (en0 and en1 say) and someone has configured them as a link aggregation or etherchannel to create a pseudo-device (en2), but that in reconfiguring the gateway, the reconfiguration has been applied to one of the physical devices en0 or en1, instead of to the link aggregated device... Cheers, Ken -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of doug chanco Sent: Thursday, 7 August 2008 3:46 AM To: u2-users@listserver.u2ug.org Subject: Re: [U2] default gateway problem You need to save the default gateway in the ODM. If you manually add/delete routes WITHOUT using smit then the come back when you reboot do the following: smitty tcpip select == Minimum Configuration Startup select your network card and then change Default Gateway Address (dotted decimal or symbolic name) [172.16.0.255] to whatever your gateway is, this will update the ODM and next time you reboot will be the gateway thats set dougc Bob Witney wrote: Ok I know that this is a tad of topic but I am hoping that those nice IBM chaps are monitoring We are on a Pseries running AIX 5.3 and Universe 10 We have changed out default gateway, I know, leave things alone I say, if its not broken don't fix it, but you know what there network techies are like, fiddle, fiddle, fiddle Anyway: we user smit assist - Configure Network Communications' - TCP/IP Startup - pick our interface Drop down to default gateway and change the ipaddress Works fine Until we re-boot at which point it reverts to the default gateway we had before the change It may be we should run ifconfig or something to lock our change in but I can't see it anywhere in the books Any suggestions would be great Bob Witney IT Senior Explore Worldwide Nelson House 55 Victoria Road Farnborough Hants GU14 7PA Confidentiality Notice: This e-mail and any attachments are intended solely for the addressee and may contain confidential or privileged information. If you are not the named addressee, or the person responsible for delivering the message to the named addressee, please notify the sender as soon as possible and delete the material from your computer. This message will be protected by copyright. If it has come to you in error, you must not take any action based on its contents nor must you copy or show the message to any person other than the intended recipient. _ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ __ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __ Confidentiality Notice: This e-mail and any attachments are intended solely for the addressee and may contain confidential or privileged information. If you are not the named addressee, or the person responsible for delivering the message to the named addressee, please notify the sender as soon as possible and delete the material from your computer. This message will be protected by copyright. If it has come to you in error, you must not take any action based on its contents nor must you copy or show the message to any person other than the intended recipient. _ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
RE: [U2] default gateway problem
I believe Bob was saying he had done exactly that Doug. My experience is that changing the default gateway can be a pain and the only way to be absolutely sure when this sort of stuff happens is to remove the interface via smitty devices then add it back again and configure it. Sorry. The other possibility is that you have two or more physical interfaces (en0 and en1 say) and someone has configured them as a link aggregation or etherchannel to create a pseudo-device (en2), but that in reconfiguring the gateway, the reconfiguration has been applied to one of the physical devices en0 or en1, instead of to the link aggregated device... Cheers, Ken -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of doug chanco Sent: Thursday, 7 August 2008 3:46 AM To: u2-users@listserver.u2ug.org Subject: Re: [U2] default gateway problem You need to save the default gateway in the ODM. If you manually add/delete routes WITHOUT using smit then the come back when you reboot do the following: smitty tcpip select == Minimum Configuration Startup select your network card and then change Default Gateway Address (dotted decimal or symbolic name) [172.16.0.255] to whatever your gateway is, this will update the ODM and next time you reboot will be the gateway thats set dougc Bob Witney wrote: Ok I know that this is a tad of topic but I am hoping that those nice IBM chaps are monitoring We are on a Pseries running AIX 5.3 and Universe 10 We have changed out default gateway, I know, leave things alone I say, if its not broken don't fix it, but you know what there network techies are like, fiddle, fiddle, fiddle Anyway: we user smit assist - Configure Network Communications' - TCP/IP Startup - pick our interface Drop down to default gateway and change the ipaddress Works fine Until we re-boot at which point it reverts to the default gateway we had before the change It may be we should run ifconfig or something to lock our change in but I can't see it anywhere in the books Any suggestions would be great Bob Witney IT Senior Explore Worldwide Nelson House 55 Victoria Road Farnborough Hants GU14 7PA Confidentiality Notice: This e-mail and any attachments are intended solely for the addressee and may contain confidential or privileged information. If you are not the named addressee, or the person responsible for delivering the message to the named addressee, please notify the sender as soon as possible and delete the material from your computer. This message will be protected by copyright. If it has come to you in error, you must not take any action based on its contents nor must you copy or show the message to any person other than the intended recipient. _ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
[U2] default gateway problem
Ok I know that this is a tad of topic but I am hoping that those nice IBM chaps are monitoring We are on a Pseries running AIX 5.3 and Universe 10 We have changed out default gateway, I know, leave things alone I say, if its not broken don't fix it, but you know what there network techies are like, fiddle, fiddle, fiddle Anyway: we user smit assist - Configure Network Communications' - TCP/IP Startup - pick our interface Drop down to default gateway and change the ipaddress Works fine Until we re-boot at which point it reverts to the default gateway we had before the change It may be we should run ifconfig or something to lock our change in but I can't see it anywhere in the books Any suggestions would be great Bob Witney IT Senior Explore Worldwide Nelson House 55 Victoria Road Farnborough Hants GU14 7PA Confidentiality Notice: This e-mail and any attachments are intended solely for the addressee and may contain confidential or privileged information. If you are not the named addressee, or the person responsible for delivering the message to the named addressee, please notify the sender as soon as possible and delete the material from your computer. This message will be protected by copyright. If it has come to you in error, you must not take any action based on its contents nor must you copy or show the message to any person other than the intended recipient. _ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] default gateway problem
Bob, Maybe this is a different issue, but it sounds like you need to make the new gateway persistent. Usually when you change a route or gateway, it is only in force until reboot. This is done differently on different platforms. It is a command line option with DOS. It is a file entry with RedHat. Your AIX docs should tell you. Or an Internet search for AIX gateway persistent. Maybe it is an option in the software you are using to change it. Charles Shaffer Senior Analyst NTN-Bower Corporation Bob Witney [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] 08/06/2008 05:14 AM Please respond to u2-users To: u2-users@listserver.u2ug.org cc: Subject:[U2] default gateway problem Ok I know that this is a tad of topic but I am hoping that those nice IBM chaps are monitoring We are on a Pseries running AIX 5.3 and Universe 10 We have changed out default gateway, I know, leave things alone I say, if its not broken don't fix it, but you know what there network techies are like, fiddle, fiddle, fiddle Anyway: we user smit assist - Configure Network Communications' - TCP/IP Startup - pick our interface Drop down to default gateway and change the ipaddress Works fine Until we re-boot at which point it reverts to the default gateway we had before the change It may be we should run ifconfig or something to lock our change in but I can't see it anywhere in the books Any suggestions would be great Bob Witney IT Senior Explore Worldwide Nelson House 55 Victoria Road Farnborough Hants GU14 7PA Confidentiality Notice: This e-mail and any attachments are intended solely for the addressee and may contain confidential or privileged information. If you are not the named addressee, or the person responsible for delivering the message to the named addressee, please notify the sender as soon as possible and delete the material from your computer. This message will be protected by copyright. If it has come to you in error, you must not take any action based on its contents nor must you copy or show the message to any person other than the intended recipient. _ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ This email was Anti Virus checked by Astaro Security Gateway. http://www.astaro.com --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] default gateway problem
You need to save the default gateway in the ODM. If you manually add/delete routes WITHOUT using smit then the come back when you reboot do the following: smitty tcpip select == Minimum Configuration Startup select your network card and then change Default Gateway Address (dotted decimal or symbolic name) [172.16.0.255] to whatever your gateway is, this will update the ODM and next time you reboot will be the gateway thats set dougc Bob Witney wrote: Ok I know that this is a tad of topic but I am hoping that those nice IBM chaps are monitoring We are on a Pseries running AIX 5.3 and Universe 10 We have changed out default gateway, I know, leave things alone I say, if its not broken don't fix it, but you know what there network techies are like, fiddle, fiddle, fiddle Anyway: we user smit assist - Configure Network Communications' - TCP/IP Startup - pick our interface Drop down to default gateway and change the ipaddress Works fine Until we re-boot at which point it reverts to the default gateway we had before the change It may be we should run ifconfig or something to lock our change in but I can't see it anywhere in the books Any suggestions would be great Bob Witney IT Senior Explore Worldwide Nelson House 55 Victoria Road Farnborough Hants GU14 7PA Confidentiality Notice: This e-mail and any attachments are intended solely for the addressee and may contain confidential or privileged information. If you are not the named addressee, or the person responsible for delivering the message to the named addressee, please notify the sender as soon as possible and delete the material from your computer. This message will be protected by copyright. If it has come to you in error, you must not take any action based on its contents nor must you copy or show the message to any person other than the intended recipient. _ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
