Alcatel-Lucent OmniSwitch 6850-48 - Page 5

Contents
OmniSwitch AOS Release 6 Switch Management Guide September 2009 v
Using Secure Shell ........................................................................................................2-11
Secure Shell Components .......................................................................................2-11
Secure Shell Interface ......................................................................................2-11
Secure Shell File Transfer Protocol .................................................................2-11
Secure Shell Application Overview .......................................................................2-13
Secure Shell Authentication ...................................................................................2-14
Protocol Identification .....................................................................................2-14
Algorithm and Key Exchange .........................................................................2-14
Authentication Phase .......................................................................................2-14
Connection Phase ............................................................................................2-15
Using Secure Shell DSA Public Key Authentication .............................................2-15
Starting a Secure Shell Session ..............................................................................2-15
Closing a Secure Shell Session ..............................................................................2-17
Log Into the Switch with Secure Shell FTP ...........................................................2-17
Closing a Secure Shell FTP Session ......................................................................2-19
Modifying the Login Banner .........................................................................................2-20
Modifying the Text Display Before Login .............................................................2-21
Configuring Login Parameters ......................................................................................2-22
Configuring the Inactivity Timer ..................................................................................2-22
Enabling the DNS Resolver ..........................................................................................2-23
Verifying Login Settings ...............................................................................................2-24
Chapter 3 Using SNMP .................................................................................................................3-1
In This Chapter ................................................................................................................3-1
SNMP Specifications ......................................................................................................3-2
SNMP Defaults ...............................................................................................................3-2
Quick Steps for Setting Up An SNMP Management Station .........................................3-4
Quick Steps for Setting Up Trap Filters ..........................................................................3-5
Filtering by Trap Families ........................................................................................3-5
Filtering by Individual Traps ....................................................................................3-6
SNMP Overview .............................................................................................................3-7
SNMP Operations ....................................................................................................3-7
Using SNMP for Switch Management .....................................................................3-8
Setting Up an SNMP Management Station .......................................................3-8
SNMP Versions ........................................................................................................3-8
SNMPv1 ............................................................................................................3-8
SNMPv2 ............................................................................................................3-9
SNMPv3 ............................................................................................................3-9
SNMP Traps Table .................................................................................................3-10
Using SNMP For Switch Security ................................................................................3-46
Community Strings (SNMPv1 and SNMPv2) .......................................................3-46
Configuring Community Strings .....................................................................3-46
Encryption and Authentication (SNMPv3) ............................................................3-47
Configuring Encryption and Authentication ...................................................3-47
Setting SNMP Security ...................................................................................3-48