2010/5/19 Dave Shield <[email protected]> > On 19 May 2010 02:22, Weiwei Zhang <[email protected]> wrote: > > In the configure file, the version is set v3. > > One of the questions in the configure script is to set the *default* > version. > This is what will be used when you don't specify a '-v' option (or > equivalent) > to the command line tools. > It really only affects the client tools - not the agent. > > > > So after building and running > > the agent can accept v1/v2c/v3 messages. > > As long as the access control is configured appropriately, the agent > will be able to accept v1, v2c and v3 SNMP requests, yes. > > > > > when the agent is running, say in linux as a process snmpd, can the user > > send some message to the snmpd saying that "please just accept v1 > message.." > > Two options: > - edit the snmpd.conf file to have the required access control, > and then signal the agent (via HUP or versionUpdateConfig) > to re-read the config file. > This would give you full control of updating access control > settings.
My understanding: suppose firstly the default agent version is v1. The agent will only accept v1 messages. Then when running the agent, re-write the snmpd.conf to let the agent update the runtime version. Q1: Now I can't find the token for version control in snmpd.conf file. Can you give me a hint? Q2: are there any API provided by net-snmp that can configure the version? > > - SET requests on the various VACM tables > You could certainly use this to set up new SNMPv3 access config. > You *might* be able to use this approach to disable an existing > SNMPv1 or SNMPv2c access config (though you might run into > problems with "permanent" entries) > It's not possible to configure new SNMPv1 (or v2c) access config > via SET requests. > > Dave > -- --- Best Regards Weiwei Zhang
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