nas1> set all security on
nas1> set authentic xxx.xxx.xxx.xxx 1812
nas1> set accounting xxx.xxx.xxx.xxx 1813
nas1> set secret my_strong_secret
nas1> set snmp on
nas1> add snmphost writer xxx.xxx.xxx.xxx
nas1> set snmp writecommunity my_strong_key
nas1> save all
gnugk.ini
[RadAcct]
Servers=xxx.xxx.xxx.xxx
LocalInterface=xxx.xxx.xxx.xxx
SharedSecret=your_radius_key
RequestTimeout=20000
AppendCiscoAttributes=1
IdCacheTimeout=40000