NET-SNMP Proxy V3 issues (converting from snmpv1/v2 requests to snmpv3)

Hi Dave,  As refered by one of our techincal head Krishna 
Mohan([email protected]), I am forwarding my question to you. Please help us.

Synopsys:  I am trying to proxy incoming snmpv1/v2/v3 requests as snmpv3 request 
from Host A to Host B (snmpv1/v2 disabled, can accept only snmpv3 requests). 

It is failing to proxy v3 Requests. 

Problem Description:  Host A   • NET-SNMP(port 161) for proxying V3 requests
• IP Address 13.132.246.152 • For proxying V3 requests snmpd.conf modified as  
proxy -v 3 -l authpriv -u SHADESUSER -a SHA -A snmpv3authpass  -x DES –X 
snmpv3privpass  13.132.247.59 1.3  Host B • Can accept and respond to snmpV3 
requests. • IP address 13.132.247.59  From Host A (command used at command 
prompt) 1.A successful response received for direct request – HostB snmpV3 
request handling tested success. # /usr/sfw/bin/snmpwalk -v3 -l authPriv -u 
SHADESUSER -a SHA -A snmpv3authpass -x DES -X snmpv3privpass 13.132.247.59 1.3  
OutPut: Received expected MIB data Wireshark(ethereal) Observation:    The first 
packet from HostA to HostB is “get-request”    Please find the screenshot 
attached (SuccessfulRequest.jpeg).    Get-Request circled in green.

2.Failed when proxied. # /usr/sfw/bin/snmpwalk -v3 -l authPriv -u SHADESUSER -a 
SHA -A snmpv3authpass -x DES -X snmpv3privpass localhost 1.3  OutPut:    
Timeout: No Response from localhost   Wireshark(ethereal) Observation:    No 
“get-request” is found from HostA-HostB    Please find the screenshot attached 
(FailedRequest.jpeg).   Requesting you to help me in understanding NET-SNMP 
proxy and correct us if we are wrong.

Many Thanks, Ravi

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