I've check my config and pasted it below and this works for me. I changed my specific info to a general 192.168.1.10 for my SIM server:
com2sec localRO 127.0.0.1 public
com2sec localRW 127.0.0.1 private
com2sec sec_simRO 192.168.1.10 public
group group_localRO v1 localRO
group group_localRO v2c localRO
group group_localRW v1 localRW
group group_localRW v2c localRW
group group_simRO v1 sec_simRO
view all included .1
access group_localRO "" any noauth exact all none none
access group_localRW "" any noauth exact all all none
access group_simRO "" any noauth exact all none none
dlmod cmaX /usr/lib64/libcmaX64.so
dontLogTCPWrappersConnects 1
trapcommunity public
trapsink 192.168.1.10 public
syscontact Root@localhost
syslocation Here