Re: no DHCP-assigned InitiatorName

[Julian Satran <Julian_Satran@xxxxxxxxxx>]

Michael,

I think that some of the OSs have the
initiator name wired into the image and boot providers will have to set
this name.
I am not sure how what exactly is required
for each version.
The boot RFC defines where the image
comes from but very little else.

Sivan may give you a pointer to CbCS.

Regards,
Julo

From:	Michael Howard <michael.howard@xxxxxxxxxxx>
To:	Julian Satran/Haifa/IBM@IBMIL
Cc:	ips@xxxxxxxx
Date:	09/22/2008 09:19
Subject:	Re: no DHCP-assigned InitiatorName

---

Julian Satran wrote:
> Michael - I am not sure what you are looking for? A standard parameter
> as those described by the iBOOT RFC?

Yes, I am looking for a specific DHCP parameter that defines what 
InitiatorName is to be used by the iSCSI boot client.

It seems to me that the purpose of RFC4173 was/is to allow stateless 
clients to boot. The target parameters that are specified in RFC4173 are
necessary, but not sufficient. On many commercial iSCSI target servers
you must have the InitiatorName in order to be able to log in to the 
target. This is the case for NetApp and SANRAD, and I strongly for many
others.

> In any case the initiator name is not the only way to control what
a 
> server will access.
> 
> CbCS (stands for Credential Based Command Security) available for
any 
> SCSI device at the SCSI layer (see the T10 site) is probably 
> safer/better and does not depend on things that can be so easy faked
by 
> an initiator as the initiator name and may be easier to deploy.

This is not something that I am familiar with ...

*** 10 minutes later ***

I could find no reference to CbCS or Command Based Command Security at
the NetApp support site now.netapp.com

A quick search at www.t10.org
didn't turn anything up either ... I'll 
keep looking.


There may (and should) be other/better security mechanisms working their
way through the standardization and implementation processes.

As a practical measure, I believe that a DHCP-supplied InitiatorName is
needed because InitiatorName is required by many commercial iSCSI target
servers.


Michael



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