Specifications

30
Configuring Security and Authentication
Introduction
The SERIMUX provides several ways to control access to the network and the devices on the network. One method is through IP
filtering, which allows or prevents users with specific IP addresses from accessing devices or serial ports on the network. IP
filtering can be permitted or restricted for all ports globally or on a per port basis. Another access control method involves
restricting or permitting specific users. Users can be easily added or removed from either a restricted or permitted users list. Sniff
session access, which allows multiple users to access a single port, is also discussed.
The SERIMUX provides for various authentication methods. They are: Local, RADIUS, TACACS+, LDAP, and Kerberos.
Authentication may be configured where a secondary method is attempted if the primary method fails.
Configuring Network IP Filtering
Access to the SERIMUX can be controlled through IP filtering. IP filtering controls access to the SERIMUX from remote hosts
either trying to access from a remote console or a web browser. IP filtering can also be used to control access to individual ports.
Figure 37- SERIMUX access controlled by IP filtering
Console and Web IP Filtering
IP filtering is a way of controlling access to the SERIMUX from remote hosts. If the administrator wants to allow specific remote
hosts access to the SERIMUX, the administrator must provide the host’s IP address and subnet mask. To configure the SERIMUX
for IP filtering, do the following:
1. Access the web interface.
2. Under the Network
heading, choose IP filtering.
3. Choose Enabled for either Telnet
console, SSH console, Web IP
filtering or all.
4. Enter the IP address and subnet
mask for the remote host.
5. Choose Save and apply.
Figure 38- IP filtering menu
Configuring Security and Authentication
P C C a r d
S E R I M U X S E C U R E
P o w e r
R e a d y
1 0 0 M b p s
P C C a r d
L i n k
A c t
1 2 3 4 5 6 7 8 9 1 0
1 1 1 2 1 3 1 4 1 5 1 6
1 7 1 8
1 9
2 0 2 1 2 2 2 3 2 4 2 5 2 6
2 7
2 8 2 9 3 0 3 1 3 2
I n U s e
T X
R X
T M
N T I
R
N e t w o r k T e c h n o l o g i e s In c
F r o n t V i e w o f S E R I M U X - S E C U R E
N e t w o r k ( E t h e r n e t )
S e r i a l
I n t e r n e t
1 9 2 . 1 6 8 . 1 . 1 0 8
1 9 2 . 1 6 8 . 5 . 1 0
1 9 2 . 1 6 8 . 5 . 1 0
1 9 2 . 1 6 8 . 1 . 1 0 8