2.21.4.3. SNMP 
The gateways HG 3500 and HG 3575 come with an SNMP agent which provides
read-only access to MIB-2 data and a gateway-specific MIB. Please refer
to Chapter
19, “SNMP Support HG 3500 / HG 3575”. Read-only
access is supported. No parameters may be changed. No traps are transferred.
The SNMP agent waits by default at port 161.
Figure 41. Example: Port usage for SNMP access
