User`s manual
IA260-261-262 EM-2260 LX User’s Manual  Managing Communications 
Mail 
Smtpclient is a minimal SMTP client that takes an email message body and passes it on to an 
SMTP server. It is suitable for applications that use email to send alert messages or important logs 
to a specific user. 
To send an email message, use the ‘smtpclient’ utility, which uses SMTP protocol. Type
#smtpclient –help
 to see the help message. 
Example: 
smtpclient –s test –f sender@company.com –S IP_address receiver@company.com 
< mail-body-message 
-s:
   The mail subject. 
-f:
 Sender’s mail address 
-S:
   SMTP server IP address 
The last mail address receiver@company.com is the receiver’s e-mail address. 
mail-body-message is the mail content. The last line of the body of the message should contain 
ONLY the period ‘.’ character. 
You will need to add your hostname to the file /etc/hosts. 
SNMP 
The IA260/IA261/IA262/EM-2260 has built-in SNMP V1 (Simple Network Management Protocol) 
agent software. It supports RFC1317 RS-232 like group and RFC 1213 MIB-II. 
NOTE  Click on the following links for more information about MIB II and RS-232 like groups: 
http://www.faqs.org/rfcs/rfc1213.html
http://www.faqs.org/rfcs/rfc1317.html
Æ IA260/IA261/IA262/EM-2260 does NOT support SNMP trap. 
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. 
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