Re: iSNS discovery error (login)
As far as I know, your transactions/sessions with the iSNS server and those with the iSCSI target should be independent. The iSNS can give you target information and you can use it to connect to target and login. Targets themselves are iSNS clients like your initiator. They register the information with the iSNS server that you as an iSNS client can use to connect to the target. If there is a descrepency, your login can fail. However, once way chap authentication is a minimum according to the standard and if your initiator offer this and the target mandates this, then there could be trouble during login. Dheeraj On Mon, Jan 19, 2009 at 2:57 PM, Nikhil Talpallikar nikhil.talpalli...@gmail.com wrote: Hi, I cannot login to a target if I do a discovery via iSNS server, but if I do discovery using SendTarget method I can login I could figure out something.but i am not able to resolve it. When I do discovery via ST the req-flags (Login PDU flags) are set to ISCSI_FLG_CSG_SECURITY, which calls CHAP authentication method. But when I do a discovery via iSNS server req-flags are set to ISCSI_FLG_CSG_LOGIN due to which it does not use CHAP authentication. Why is this so? Does the iSNS server interfere with the login PDU??? -- If you fool me once shame on you. If you fool me twice shame on me. \|||/ (o o) ooO-(_)-Ooo Nikhil Talpallikar --talli ;) -- Simplicity of character is the natural result of profound thought. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups open-iscsi group. To post to this group, send email to open-iscsi@googlegroups.com To unsubscribe from this group, send email to open-iscsi+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/open-iscsi -~--~~~~--~~--~--~---
Re: iSNS discovery error (login)
I agree .. that is why I am having trouble (unable to connect the dots) .. and need some explanation if anyone has come across this kind of situation and solved it. Afterall what effect can iSNS discovery have on Login PDU ?? Just unable to connect and reason what I have observed. On Mon, Jan 19, 2009 at 3:23 PM, Dheeraj Sangamkar dheera...@gmail.comwrote: As far as I know, your transactions/sessions with the iSNS server and those with the iSCSI target should be independent. The iSNS can give you target information and you can use it to connect to target and login. Targets themselves are iSNS clients like your initiator. They register the information with the iSNS server that you as an iSNS client can use to connect to the target. If there is a descrepency, your login can fail. However, once way chap authentication is a minimum according to the standard and if your initiator offer this and the target mandates this, then there could be trouble during login. Dheeraj On Mon, Jan 19, 2009 at 2:57 PM, Nikhil Talpallikar nikhil.talpalli...@gmail.com wrote: Hi, I cannot login to a target if I do a discovery via iSNS server, but if I do discovery using SendTarget method I can login I could figure out something.but i am not able to resolve it. When I do discovery via ST the req-flags (Login PDU flags) are set to ISCSI_FLG_CSG_SECURITY, which calls CHAP authentication method. But when I do a discovery via iSNS server req-flags are set to ISCSI_FLG_CSG_LOGIN due to which it does not use CHAP authentication. Why is this so? Does the iSNS server interfere with the login PDU??? -- If you fool me once shame on you. If you fool me twice shame on me. \|||/ (o o) ooO-(_)-Ooo Nikhil Talpallikar --talli ;) -- Simplicity of character is the natural result of profound thought. -- If you fool me once shame on you. If you fool me twice shame on me. \|||/ (o o) ooO-(_)-Ooo Nikhil Talpallikar --talli ;) --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups open-iscsi group. To post to this group, send email to open-iscsi@googlegroups.com To unsubscribe from this group, send email to open-iscsi+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/open-iscsi -~--~~~~--~~--~--~---
Re: iSNS discovery error (login)
Nikhil Talpallikar wrote: Hi, I cannot login to a target if I do a discovery via iSNS server, but if I do Are you doing iscsiadm -m discovery -t isns discovery using SendTarget method I can login I could figure out something.but i am not able to resolve it. When I do discovery via ST the req-flags (Login PDU flags) are set to ISCSI_FLG_CSG_SECURITY, which calls CHAP authentication method. But when I do a discovery via iSNS server req-flags are set to ISCSI_FLG_CSG_LOGIN due to which it does not use CHAP authentication. It might be a bug in the open-iscsi setup code. Do you have the CHAP settings in /etc/iscsi/iscsid.conf ? Then when you do iscsiadm -m discovery -t isns for the targets found if you do iscsiadm -m node -T your_target -p ip:port When it spits out the node info do you see the CHAP settings that should get used? What version of the open-iscsi tools are using? Are then from open-iscsi.org or from a distro? Why is this so? Does the iSNS server interfere with the login PDU??? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups open-iscsi group. To post to this group, send email to open-iscsi@googlegroups.com To unsubscribe from this group, send email to open-iscsi+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/open-iscsi -~--~~~~--~~--~--~---
Re: iSNS discovery error (login)
Check your CHAP setting in your configure file. Vaibhav Pol On Tue, Jan 20, 2009 at 12:03 AM, Mike Christie micha...@cs.wisc.eduwrote: Nikhil Talpallikar wrote: Hi, I cannot login to a target if I do a discovery via iSNS server, but if I do Are you doing iscsiadm -m discovery -t isns discovery using SendTarget method I can login I could figure out something.but i am not able to resolve it. When I do discovery via ST the req-flags (Login PDU flags) are set to ISCSI_FLG_CSG_SECURITY, which calls CHAP authentication method. But when I do a discovery via iSNS server req-flags are set to ISCSI_FLG_CSG_LOGIN due to which it does not use CHAP authentication. It might be a bug in the open-iscsi setup code. Do you have the CHAP settings in /etc/iscsi/iscsid.conf ? Then when you do iscsiadm -m discovery -t isns for the targets found if you do iscsiadm -m node -T your_target -p ip:port When it spits out the node info do you see the CHAP settings that should get used? What version of the open-iscsi tools are using? Are then from open-iscsi.org or from a distro? Why is this so? Does the iSNS server interfere with the login PDU??? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups open-iscsi group. To post to this group, send email to open-iscsi@googlegroups.com To unsubscribe from this group, send email to open-iscsi+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/open-iscsi -~--~~~~--~~--~--~---
Re: iSNS discovery error (login)
hi, On Tue, Jan 20, 2009 at 12:03 AM, Mike Christie micha...@cs.wisc.eduwrote: Nikhil Talpallikar wrote: Hi, I cannot login to a target if I do a discovery via iSNS server, but if I do Are you doing iscsiadm -m discovery -t isns yes discovery using SendTarget method I can login I could figure out something.but i am not able to resolve it. When I do discovery via ST the req-flags (Login PDU flags) are set to ISCSI_FLG_CSG_SECURITY, which calls CHAP authentication method. But when I do a discovery via iSNS server req-flags are set to ISCSI_FLG_CSG_LOGIN due to which it does not use CHAP authentication. It might be a bug in the open-iscsi setup code. Do you have the CHAP settings in /etc/iscsi/iscsid.conf ? yes Then when you do iscsiadm -m discovery -t isns for the targets found if you do iscsiadm -m node -T your_target -p ip:port When it spits out the node info do you see the CHAP settings that should get used? yes What version of the open-iscsi tools are using? Are then from open-iscsi.org or from a distro? Its from a distro. RPM is open-iscsi-2.0.707-0.19.i586.rpm. Why is this so? Does the iSNS server interfere with the login PDU??? It can be a bug as you say. But where does the iSNS play a role in this bug. What I want to know is whether the initiator keeps some kind of mapping or a flag for targets discovered via iSNS??? -- If you fool me once shame on you. If you fool me twice shame on me. \|||/ (o o) ooO-(_)-Ooo Nikhil Talpallikar --talli ;) --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups open-iscsi group. To post to this group, send email to open-iscsi@googlegroups.com To unsubscribe from this group, send email to open-iscsi+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/open-iscsi -~--~~~~--~~--~--~---
Re: iSNS discovery error (login)
hi, On Tue, Jan 20, 2009 at 12:03 AM, Mike Christie micha...@cs.wisc.edu wrote: Nikhil Talpallikar wrote: Hi, I cannot login to a target if I do a discovery via iSNS server, but if I do Are you doing iscsiadm -m discovery -t isns yes discovery using SendTarget method I can login I could figure out something.but i am not able to resolve it. When I do discovery via ST the req-flags (Login PDU flags) are set to ISCSI_FLG_CSG_SECURITY, which calls CHAP authentication method. But when I do a discovery via iSNS server req-flags are set to ISCSI_FLG_CSG_LOGIN due to which it does not use CHAP authentication. It might be a bug in the open-iscsi setup code. Do you have the CHAP settings in /etc/iscsi/iscsid.conf ? yes Then when you do iscsiadm -m discovery -t isns for the targets found if you do iscsiadm -m node -T your_target -p ip:port When it spits out the node info do you see the CHAP settings that should get used? yes What version of the open-iscsi tools are using? Are then from open-iscsi.org or from a distro? Its from a distro. RPM is open-iscsi-2.0.707-0.19.i586.rpm. Why is this so? Does the iSNS server interfere with the login PDU??? It can be a bug as you say. But where does the iSNS play a role in this bug. What I want to know is whether the initiator keeps some kind of mapping or a flag for targets discovered via iSNS which later interferes with the login PDU's CSG and NSG flags??? cheers, Nikhil -- If you fool me once shame on you. If you fool me twice shame on me. \|||/ (o o) ooO-(_)-Ooo Nikhil Talpallikar --talli ;) --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups open-iscsi group. To post to this group, send email to open-iscsi@googlegroups.com To unsubscribe from this group, send email to open-iscsi+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/open-iscsi -~--~~~~--~~--~--~---
