User`s manual

UC-8410/8416/8418-LX User’s Manual Managing Communication
4-18
SNMP
The UC-8410/8416/8418 has the SNMP V1 (Simple Network Management Protocol) agent
software built in. It supports RFC1317 RS-232 like groups and RFC 1213 MIB-II.
The following simple example allows you to use an SNMP browser on the host site to query the
UC-8410/8416/8418, which is the SNMP agent. The UC-8410/8416/8418 will respond.
debian:~# snmpwalk -v 1 -c public -Cc 192.168.30.127
SNMPv2-MIB::sysDescr.0 = STRING: Linux version 2.6.23.1 (root@UC8400) (gcc version 4.2.1) #1137 Wed Sep 17
16:17:45 EDT 2008
SNMPv2-MIB::sysObjectID.0 = OID: SNMPv2-SMI::enterprises.8691.12.8410/8416/8418
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (239600) 0:39:56.00
SNMPv2-MIB::sysContact.0 = STRING: Moxa Systems Co., LDT.
SNMPv2-MIB::sysName.0 = STRING: (none)
SNMPv2-MIB::sysLocation.0 = STRING: Unknown
SNMPv2-MIB::sysServices.0 = INTEGER: 6
IF-MIB::ifNumber.0 = INTEGER: 11
IF-MIB::ifIndex.1 = INTEGER: 1
IF-MIB::ifIndex.2 = INTEGER: 2
IF-MIB::ifIndex.3 = INTEGER: 3
IF-MIB::ifIndex.4 = INTEGER: 4
IF-MIB::ifIndex.5 = INTEGER: 5
IF-MIB::ifIndex.6 = INTEGER: 6
IF-MIB::ifIndex.7 = INTEGER: 7
IF-MIB::ifIndex.8 = INTEGER: 8
IF-MIB::ifIndex.9 = INTEGER: 9
IF-MIB::ifIndex.10 = INTEGER: 10
IF-MIB::ifIndex.11 = INTEGER: 11
IF-MIB::ifDescr.1 = STRING: eth0
IF-MIB::ifDescr.2 = STRING: eth1
IF-MIB::ifDescr.3 = STRING: eth2***** SNMP QUERY FINISHED *****
NOTE Click on the following links for more information about MIB II and RS-232 like groups:
http://www.faqs.org/rfcs/rfc121
3.html
http://www.faqs.org/rfcs/rfc131
7.html
Æ The UC-8410/8416/8418 does NOT support SNMP trap.
The following tables list the variables supported by the UC-8410/8416/8418.
OpenVPN
OpenVPN provides two types of tunnels for users to implement VPNS: Routed IP Tunnels and
Bridged Ethernet Tunnels. To begin with, check to make sure that the system has a virtual device
/dev/net/tun. If not, issue the following command:
# mknod /dev/net/tun c 10 200
An Ethernet bridge is used to connect different Ethernet networks together. The Ethernets are
bundled into one bigger, “logical” Ethernet. Each Ethernet corresponds to one physical interface
(or port) that is connected to the bridge.
On each OpenVPN machine, you should generate a working directory, such as /etc/openvpn,
where script files and key files reside. Once established, all operations will be performed in that
directory.