How to configure snmpd as a proxy for SNMPv3 GET requests

Hi All,

I have an SNMPv3 agent written in Java running on *host1* with the following
security details:
  context name=TEST-CONTEXT
 security level=authNoPriv
 user=defaultUser
 password=mypassword

I can use snmpget on *host2* to send GET requests to the agent just fine:
  -bash-4.1$ snmpget -v3 -u defaultUser -A "mypassword" -l authNoPriv -n
TEST-CONTEXT host1:8085 sysDescr.0
 SNMPv2-MIB::sysDescr.0 = STRING: Windows XP x86 5.1

Now, I want to use snmpd to act as a proxy on *host1* to relay GET requests
to the agent instead of the client on *host2* send GET requests directly to
the agent.

I have read the Wiki page at
http://www.net-snmp.org/wiki/index.php/Snmpd_proxy and tried many things in
my snmpd.conf, but I still couldn't get it to work.

This is what I currently have in my snmpd.conf (only one line):
  proxy -v3 -u defaultUser -A "mypassword" -l authNoPriv localhost:8085 .1.3

When using the above snmpget command to send a GET request to the proxy
(instead of to the agent directly), I get a timeout error:
  -bash-4.1$ snmpget -v3 -u defaultUser -A "mypassword" -l authNoPriv -n
TEST-CONTEXT host1:161 sysDescr.0
  Timeout: No Response from host1:161.

My questions:

   1. What do I need to add/modify in my snmpd.conf to get the proxy
   working?
   2. Where do I actually need to specify the context name "TEST-CONTEXT"?

          Is it when sending a GET request to the proxy such as:
            snmpget -v3 -u defaultUser -A "mypassword" -l authNoPriv -n
TEST-CONTEXT host1:161 sysDescr.0

          or should it only be added to the snmpd.conf such as the following
and snmpget doesn't need to specify the context name (only username and
password):
            proxy -v3 -u defaultUser -A "mypassword" -l authNoPriv -n
TEST-CONTEXT localhost:8085 .1.3

3. Is it possible for snmpd to act as a proxy for an agent that uses the
default context (no specific context name given)?  What should be done in
this case?

Any helps/pointers appreciated.  Thanks.

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