Re: Unknown user name

    [ First - *please* don't mail me privately, without copying
     any responses to the mailing list.  I don't have the time
     or inclination to offer private, unpaid, SNMP consultancy.
     Keep discussions to the list, where others can both learn
     and offer advice.  Thanks.   ]


2009/7/7 j hite <[email protected]>:
>> >  However whenever I try to use v3 I get the Unknown user name error.
>>
>> What is the exact command you are trying?
>
>
>
> Thanks for posting Dave.
>
> snmpget -v3 -u snmpv3authSec -a MD5 -A anythingforsec -l authNoPriv -d
> 10.257.7.1  1 1.3.6.1.2.1.1.3.0
>
>>
>> > The Usm_User_Table, Cfg_Sec2Groups, and Snmp_Cfg_Access tables
>> > have been setup in the agent.
>>
>> How?
>> What do they contain, and how was this configured?
>
>
>
> #define USM_MAX_USER_USERS 3
> SNMP_USM_USER_STRUCT            Usm_User_Table[USM_MAX_USER_USERS] =
> {
>     /* User name, Authentication protocol, Authentication password,
>      * Privacy protocol, Privacy password.
>        */
>     {USM_USER_NAME_INITIAL, USM_MD5, USM_AUTH_PASSWORD_INITIAL,
>         USM_DES, USM_PRIV_PASSWORD_INITIAL},
>     {"snmpv3authSec", USM_MD5, "anythingforsec", USM_DES,"privacypass"},
>     {"templateSHA", USM_SHA, "template",
>         USM_DES, "template"}
> };
>
> #define VACM_SEC2GRP_TBL_SIZE 4
> VACM_SEC2GROUP Snmp_Cfg_Sec2Groups [VACM_SEC2GRP_TBL_SIZE] = {
>     /* Security model, Security name, Group name. */
>     {SNMP_CBSM_V1, "public", "group1"},
>     {SNMP_CBSM_V2, "public", "group1"},
>     {SNMP_USM, USM_USER_NAME_INITIAL, "group1"},
>     {SNMP_USM, "snmpv3authSec", "snmpv3authGrp"}
> };
>
> #define VACM_ACCESS_TBL_SIZE 3
> VACM_ACCESS Snmp_Cfg_Access [VACM_ACCESS_TBL_SIZE] = {
>     /* Security model, Group name, Context prefix, Security level,
>        Context match, Read view, Write view, Notify view. */
>     {SNMP_ANY, "group1", "", VACM_CTXTMATCH_EXACT,
>         SNMP_SECURITY_NOAUTHNOPRIV, "restricted", "restricted",
>         "restricted"},
>     {SNMP_USM, "group1", "", VACM_CTXTMATCH_EXACT,
>         SNMP_SECURITY_AUTHNOPRIV, "internet", "internet",
>         "internet"},
>     {SNMP_USM, "snmpv3authGrp", "", SNMP_SECURITY_AUTHPRIV,
>         VACM_CTXTMATCH_EXACT, "internet", "internet", "internet"}
> };

That doesn't look anything like the Net-SNMP agent.
We don't have any code that looks remotely like this.

Even the tokens used (SNMP_SECURITY_AUTHPRIV, etc) aren't
right for our agent.

If you are using the Net-SNMP agent, then please see the
snmpd.conf(5) man page for how to configure access control.

If you are using a different agent, then you need to talk to the
vendors of that software for assistance.  We can't help you.

Dave

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