Owner manual
Table Of Contents
- Contents
- Figures
- Tables
- Preface
- Section I
- Basic Operations
- Chapter 1
- Overview
- Chapter 2
- Enhanced Stacking
- Chapter 3
- SNMPv1 and SNMPv2c
- Chapter 4
- MAC Address Table
- Chapter 5
- Static Port Trunks
- Chapter 6
- LACP Port Trunks
- Chapter 7
- Port Mirror
- Section II
- Advanced Operations
- Chapter 8
- File System
- Chapter 9
- Event Logs and the Syslog Client
- Chapter 10
- Classifiers
- Chapter 11
- Access Control Lists
- Chapter 12
- Class of Service
- Chapter 13
- Quality of Service
- Chapter 14
- Denial of Service Defenses
- Chapter 15
- Power Over Ethernet
- Section III
- Snooping Protocols
- Chapter 16
- IGMP Snooping
- Chapter 17
- MLD Snooping
- Chapter 18
- RRP Snooping
- Chapter 19
- Ethernet Protection Switching Ring Snooping
- Section IV
- SNMPv3
- Chapter 20
- SNMPv3
- Section V
- Spanning Tree Protocols
- Chapter 21
- Spanning Tree and Rapid Spanning Tree Protocols
- Chapter 22
- Multiple Spanning Tree Protocol
- Section VI
- Virtual LANs
- Chapter 23
- Port-based and Tagged VLANs
- Chapter 24
- GARP VLAN Registration Protocol
- Chapter 25
- Multiple VLAN Modes
- Chapter 26
- Protected Ports VLANs
- Chapter 27
- MAC Address-based VLANs
- Section VII
- Routing
- Chapter 28
- Internet Protocol Version 4 Packet Routing
- Supported Platforms
- Overview
- Routing Interfaces
- Interface Names
- Static Routes
- Routing Information Protocol (RIP)
- Default Routes
- Equal-cost Multi-path (ECMP) Routing
- Routing Table
- Address Resolution Protocol (ARP) Table
- Internet Control Message Protocol (ICMP)
- Routing Interfaces and Management Features
- Local Interface
- AT-9408LC/SP AT-9424T/GB, and AT-9424T/SP Switches
- Routing Command Example
- Non-routing Command Example
- Upgrading from AT-S63 Version 1.3.0 or Earlier
- Chapter 29
- BOOTP Relay Agent
- Chapter 30
- Virtual Router Redundancy Protocol
- Section VIII
- Port Security
- Chapter 31
- MAC Address-based Port Security
- Chapter 32
- 802.1x Port-based Network Access Control
- Section IX
- Management Security
- Chapter 33
- Web Server
- Chapter 34
- Encryption Keys
- Chapter 35
- PKI Certificates and SSL
- Chapter 36
- Secure Shell (SSH)
- Chapter 37
- TACACS+ and RADIUS Protocols
- Chapter 38
- Management Access Control List
- Appendix A
- AT-S63 Management Software Default Settings
- Address Resolution Protocol Cache
- Boot Configuration File
- BOOTP Relay Agent
- Class of Service
- Denial of Service Defenses
- 802.1x Port-Based Network Access Control
- Enhanced Stacking
- Ethernet Protection Switching Ring (EPSR) Snooping
- Event Logs
- GVRP
- IGMP Snooping
- Internet Protocol Version 4 Packet Routing
- MAC Address-based Port Security
- MAC Address Table
- Management Access Control List
- Manager and Operator Account
- Multicast Listener Discovery Snooping
- Public Key Infrastructure
- Port Settings
- RJ-45 Serial Terminal Port
- Router Redundancy Protocol Snooping
- Server-based Authentication (RADIUS and TACACS+)
- Simple Network Management Protocol
- Simple Network Time Protocol
- Spanning Tree Protocols (STP, RSTP, and MSTP)
- Secure Shell Server
- Secure Sockets Layer
- System Name, Administrator, and Comments Settings
- Telnet Server
- Virtual Router Redundancy Protocol
- VLANs
- Web Server
- Appendix B
- SNMPv3 Configuration Examples
- Appendix C
- Features and Standards
- 10/100/1000Base-T Twisted Pair Ports
- Denial of Service Defenses
- Ethernet Protection Switching Ring Snooping
- Fiber Optic Ports (AT-9408LC/SP Switch)
- File System
- DHCP and BOOTP Clients
- Internet Protocol Multicasting
- Internet Protocol Version 4 Routing
- MAC Address Table
- Management Access and Security
- Management Access Methods
- Management Interfaces
- Management MIBs
- Port Security
- Port Trunking and Mirroring
- Spanning Tree Protocols
- System Monitoring
- Traffic Control
- Virtual LANs
- Virtual Router Redundancy Protocol
- Appendix D
- MIB Objects
- Index
Chapter 35: PKI Certificates and SSL
414 Section IX: Management Security
this, and other attacks, PKI provides a means for secure transfer of public
keys by linking an identity and that identity’s public key in a secure
certificate.
Caution
Although a certificate binds a public key to a subject to ensure the
public key’s security, it does not guarantee that the security of the
associated private key has not been breached. A secure system is
dependent upon private keys being kept secret, by protecting them
from malicious physical and virtual access.
Certificates A certificate is an electronic identity document. To create a certificate for a
subject, a trusted third party (known as the Certification Authority) verifies
the subject’s identity, binds a public key to that identity, and digitally signs
the certificate. A person receiving a copy of the certificate can verify the
Certification Authority’s digital signature and be sure that the public key is
owned by the identity in it.
The switch can generate a self-signed certificate but this should only be
used with an SSL enabled HTTP server, or where third party trust is not
required.
X.509 Certificates
The X.509 specification specifies a format for certificates. Almost all
certificates use the X.509 version 3 format, described in RFC 2459,
Internet X.509 Public Key Infrastructure Certificate and CRL Profile. This
is the format which is supported by the switch.
An X.509 v3 certificate consists of:
A serial number, which distinguishes the certificate from all others
issued by that issuer. This serial number is used to identify the
certificate in a Certificate Revocation List, if necessary.
The owner’s identity details, such as name, company and address.
The owner’s public key, and information about the algorithm with
which it was produced.
The identity details of the organization which issued the certificate.
The issuer’s digital signature and the algorithm used to produce it.
The period for which the certificate is valid.
Optional information is included, such as the type of application with
which the certificate is intended to be used.
The issuing organization’s digital signature is included in order to
authenticate the certificate. As a result, if a certificate is tampered with
during transmission, the tampering is detected.