Eu acho que o snmpget também suporta isso. Existem alguns recursos comuns descritos na página do manual do snmpcmd (1M) que eles não se incomodam em repetir em todas as páginas de comandos individuais.
Agent Specification
The agent specification (see SYNOPSIS) takes the form:
[transport-specifier:]transport-address
At its simplest, the agent specification consists of a host-
name or an IPv4 address in the standard, "dotted quad" nota-
tion. In this case, communication will be attempted using
UDP/IPv4 to port 161 of the given host. Otherwise, the
transport-address part of the specification is parsed
according to the following table:
<transport-specifier> <transport-address> format
udp hostname[:port]
Note that transport-specifier strings are case-insensitive
so that, for example, "tcp" and "TCP" are equivalent. Here
are some examples, along with interpretations:
myhost:161
Perform query using UDP/IPv4 datagrams sent to myhost on
port 161. The :161 is redundant here because that is the
default SNMP port.
udp:myhost
Identical to the previous specification. The udp: is redun-
dant here because UDP/IPv4 is the default transport.