How to configure agent to listen on a new IPAddress without restarting it.?

Hi,
 
We are using Net-snmp-5.1.1. 
We have configured the agent to listen on an IP address (10.232.92.171)
and port 161 by specifying the following line in snmpd.conf
 
agentaddress  udp:10.232.92.171:161
 
We want to re-configure the agent to listen on localhost instead of the
initially given IP Address 10.232.92.171. We modified snmpd.conf to make
agent listen on localhost and sent SIGHUP to the agent. But the agent
doesn't respond to requests sent with IPAddress as "localhost" from the
same machine and it continues to listen on 10.232.92.171.
 
WIll SIGHUP not reconfigure the agent to listen on new IPAddress
mentioned..? 
We observed that if community name is changed in snmpd.conf file and
SIGHUP is sent to agent, then agent is reconfigured with the new
community name successfully and responds to the requests having the new
community name.
 
Please let me know how can we re-configure the agent to listen on
another IPAddress without restarting it.
 
Thanks in advance,
Suresh.