User guide

Canopy System User Guide Roles of Hardware and Software Elements
pmp-0229 (Mar 2013)
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Table 69: SNMP Proxy flow
Configuration of Slave Devices
The Slave Devices should be configured with a local IP address with the appropriate gateway
setup.
The IP Configurations of the System should be such that the slave Ethernet interface and the
SNMP Client are not on the same subnet. This scenario will cause all traffic from the slave
devices to the SNMP Client to be sent out via its Ethernet interface, preventing routing back to the
SNMP Client.
SNMP Proxy UDP Port
The SNMP Proxy is listening for SNMP requests to forward on UDP port 61002. It forwards the
request to the slave device (SM or BHS) using UDP port 161.
Packet Format
The first OID sent in an SNMP request needs be modified to include the MAC address of the slave
device The remaining OIDs will remain the same as slave OIDs:
.SlaveOID. <MAC>
.SlaveOID
.SlaveOID
Process
Request
SNMP Client AP SM
Send Request
Process Request
Forward Modified
Request
Send Response