D-Link DGS-3224TGR Router Manual PDF (Setup & Configuration Guide)

Page 126 / 160 Scroll up to view Page 121 - 125

DGS-3224TGR Gigabit Ethernet Switch User’s Guide

114

facility values the switch supports now.

Numerical

Facility

Code

0

kernel messages

1

user-level messages

2

mail system

3

system daemons

4

security/authorization messages

5

messages generated internally by syslog line printer subsystem

7

network news subsystem

8

UUCP subsystem

9

clock daemon

10

security/authorization messages

11

FTP daemon

12

NTP subsystem

13

log audit

14

log alert

15

clock daemon

16

local use 0

(local0)

17

local use 1

(local1)

18

local use 2

(local2)

19

local use 3

(local3)

20

local use 4

(local4)

21

local use 5

(local5)

22

local use 6

(local6)

23

local use 7

(local7)

UDP Port

Type the UDP port number used for sending Syslog messages. The default is

514

.

Status

Choose

Enabled

or

Disabled

to activate or deactivate this.

Multicast Configuration

IGMP Snooping Global

Figure 6- 121.

IGMP Snooping State window

Page 127 / 160

DGS-3224TGR Gigabit Ethernet Switch User’s Guide

115

Internet Group Management Protocol (IGMP) snooping allows the switch to recognize IGMP queries and reports sent

between network stations or devices and an IGMP host. When enabled for IGMP snooping, the switch can open or close a

port to a specific device based on IGMP messages passing through the switch.

IGMP Snooping Configurations

Figure 6- 122.

IGMP Snooping Configurations window

Select the desired IGMP snooping configuration and click

Edit

to open the following window:

Figure 6- 123.

IGMP Snooping Configurations – Edit window

To set up IGMP snooping, first change the IGMP Snooping State field to

Enabled

on the IGMP Snooping State window.

Next, enter the desired IGMP snooping configuration settings in the window above. The Query Interval (1-65535) can be

set between

1

and

65,535

seconds and determines the time between IGMP queries. The Max Response (1-25) value allows

a setting between

1

and

25

seconds and specifies the maximum amount of time allowed before sending a response report. A

value between

1

and

255

can be entered for the Robustness Variable (1-255) (the default is

2

). Enabling the Fast Leave

State allows the switch to reduce Leave Delays. Fast Leave operates on a port if an IGMP client connects to the port and

there are no other end nodes detected on that port. In this case, when the client leaves a multicast group, Fast Leave

automatically accelerates the blocking of further, unnecessary multicast traffic from that group to the former IGMP client.

This improves performance by reducing the amount of multicast traffic going through the port to the IGMP client after the

Page 128 / 160

DGS-3224TGR Gigabit Ethernet Switch User’s Guide

116

client leaves a multicast group. Once you have finished making your IGMP snooping configuration settings, click

Apply

to

make the settings effective.

Static Router Port Settings

Figure 6- 124.

Static Router Port Settings window

Select an entry and click

Edit

to access the following window:

Figure 6- 125.

Static Router Port Settings – Edit window

SSH Management

SSH is the abbreviation of Secure Shell, which is a program allowing secure remote login and secure network services over

an insecure network. It allows you to securely login to remote host computers, to execute commands safely in a remote

computer and so forth, and to provide secure encrypted and authenticated communications between two non-trusted hosts.

SSH with its array of unmatched security features is an essential tool in today’s network environment.

It is a powerful guardian against the numerous security hazards that nowadays threaten network communications.

Page 129 / 160

DGS-3224TGR Gigabit Ethernet Switch User’s Guide

117

SSH Configurations

Figure 6- 126.

SSH Configurations window

The SSH configure window contains the global server setting: maximum simultaneous sessions, connection timeout,

maximum fail attempts, authentication method, key re-exchange timeout, the encryption algorithms, data integrality

algorithms and public key algorithms.

The information is described as follows:

Parameter

Description

Maximum Simultaneous Sessions (1 – 8)

Specify how many sessions at most the server program will

handle simultaneously.

Connection Timeout (120 - 600 sec)

Specify how many seconds the connection can survive before

the server automatically ends the connection.

Maximum Fail Attempts (2 – 20)

Specify the maximum number of allowed authentication

attempts before access being denied.

Listened Port Number (1 – 65535)

Specify the TCP port number. TCP ports are numbered

between 1 and 65535. The "well-known" TCP port for the SSH

Page 130 / 160

DGS-3224TGR Gigabit Ethernet Switch User’s Guide

118

protocol is 22.

Authentication Method

Specify the methods of user authentication supported by

server.

Key Re-Exchange Timeout (minute)

Specify how many minutes the parties must process key re-

exchange.

Encryption

Specify the algorithm to use for encryption supported by

server.

3DES:

Use

3DES

encryption.

Blowfish:

Use

Blowfish

encryption.

Data Integrity

Specify the desired MAC algorithm to use for the data integrity

verification.

SHA-1: Use the hmac-sha1 MAC. MD5:

Use the hmac-md5

MAC.

Public Key

Specify the algorithm to use for the public key.

DSA: Use the DSA algorithm. RSA: Use the RSA algorithm.

SSH Account Configuration

Figure 6- 127.

SSH Account Configuration window

Click

New

to open the

SSH Account Configuration – Add

window:

Figure 6- 128.

SSH Account Configuration – Add window

Rate

Popular D-Link Models

Famous Router IPs

Famous Router Companies

Bookmark Our Site

Share