Web Management Guide-R07
Table Of Contents
- How to Use This Guide
- Contents
- Figures
- Tables
- Getting Started
- Introduction
- Key Features
- Description of Software Features
- Configuration Backup and Restore
- Authentication
- Access Control Lists
- Port Configuration
- Rate Limiting
- Port Mirroring
- Port Trunking
- Storm Control
- Static MAC Addresses
- IP Address Filtering
- IEEE 802.1D Bridge
- Store-and-Forward Switching
- Spanning Tree Algorithm
- Virtual LANs
- IEEE 802.1Q Tunneling (QinQ)
- Traffic Prioritization
- Quality of Service
- IP Routing
- Address Resolution Protocol
- Multicast Filtering
- Link Layer Discovery Protocol
- System Defaults
- Introduction
- Web Configuration
- Using the Web Interface
- Basic Management Tasks
- Displaying System Information
- Displaying Hardware/Software Versions
- Configuring Support for Jumbo Frames
- Displaying Bridge Extension Capabilities
- Managing System Files
- Setting the System Clock
- Configuring the Console Port
- Configuring Telnet Settings
- Displaying CPU Utilization
- Configuring CPU Guard
- Displaying Memory Utilization
- Resetting the System
- Using Cloud Management
- Interface Configuration
- VLAN Configuration
- Address Table Settings
- Spanning Tree Algorithm
- Congestion Control
- Class of Service
- Quality of Service
- VoIP Traffic Configuration
- Security Measures
- AAA (Authentication, Authorization and Accounting)
- Configuring User Accounts
- Web Authentication
- Network Access (MAC Address Authentication)
- Configuring HTTPS
- Configuring the Secure Shell
- Access Control Lists
- Filtering IP Addresses for Management Access
- Configuring Port Security
- Configuring 802.1X Port Authentication
- DoS Protection
- DHCP Snooping
- IPv4 Source Guard
- ARP Inspection
- Basic Administration Protocols
- Configuring Event Logging
- Link Layer Discovery Protocol
- Power over Ethernet
- Simple Network Management Protocol
- Configuring Global Settings for SNMP
- Setting the Local Engine ID
- Specifying a Remote Engine ID
- Setting SNMPv3 Views
- Configuring SNMPv3 Groups
- Setting Community Access Strings
- Configuring Local SNMPv3 Users
- Configuring Remote SNMPv3 Users
- Specifying Trap Managers
- Creating SNMP Notification Logs
- Showing SNMP Statistics
- Remote Monitoring
- Switch Clustering
- Setting a Time Range
- LBD Configuration
- Smart Pair Configuration
- Multicast Filtering
- Overview
- Layer 2 IGMP (Snooping and Query for IPv4)
- Configuring IGMP Snooping and Query Parameters
- Specifying Static Interfaces for a Multicast Router
- Assigning Interfaces to Multicast Services
- Setting IGMP Snooping Status per Interface
- Filtering IGMP Query Packets and Multicast Data
- Displaying Multicast Groups Discovered by IGMP Snooping
- Displaying IGMP Snooping Statistics
- Filtering and Throttling IGMP Groups
- MLD Snooping (Snooping and Query for IPv6)
- Filtering and Throttling MLD Groups
- Filtering MLD Query Packets on an Interface
- IP Tools
- IP Configuration
- General IP Routing
- Unicast Routing
- Overview
- Configuring the Routing Information Protocol
- Configuring General Protocol Settings
- Clearing Entries from the Routing Table
- Specifying Network Interfaces
- Specifying Passive Interfaces
- Specifying Static Neighbors
- Configuring Route Redistribution
- Specifying an Administrative Distance
- Configuring Network Interfaces for RIP
- Displaying RIP Interface Settings
- Displaying Peer Router Information
- Resetting RIP Statistics
- IP Services
- Appendices
- Glossary
Chapter 18
| Unicast Routing
Configuring the Routing Information Protocol
– 519 –
■
Use “RIPv1 and RIPv2” if some routers in the local network are using RIPv2,
but there are still some older routers using RIPv1. (This is the default
setting.)
■
Use “Do Not Receive” if dynamic entries are not required to be added to the
routing table for an interface. (For example, when only static routes are to
be allowed for a specific interface.)
Protocol Message Authentication
RIPv1 is not a secure protocol. Any device sending protocol messages from UDP
port 520 will be considered a router by its neighbors. Malicious or unwanted
protocol messages can be easily propagated throughout the network if no
authentication is required.
RIPv2 supports authentication using a simple password or MD5 key encryption.
When a router is configured to exchange authentication messages, it will insert the
password into all transmitted protocol packets, and check all received packets to
ensure that they contain the authorized password. If any incoming protocol
messages do not contain the correct password, they are simply dropped.
For authentication to function properly, both the sending and receiving interface
must be configured with the same password or authentication key.
Loopback Prevention
Just as Layer 2 switches use the Spanning Tree Algorithm to prevent loops, routers
also use methods for preventing loops that would cause endless retransmission of
data traffic. When protocol packets are caught in a loop, links will be congested,
and protocol packets may be lost. However, the network will slowly converge to the
new state. RIP supports several methods which can provide faster convergence
when the network topology changes and prevent most loops from occurring.
Parameters
These parameters are displayed:
◆ VLAN ID – Layer 3 VLAN interface. This interface must be configured with an IP
address and have an active link. (Range: 1-4094)
◆ Send Version – The RIP version to send on an interface.
■
RIPv1: Sends only RIPv1 packets.
■
RIPv2: Sends only RIPv2 packets.
■
RIPv1 Compatible: Route information is broadcast to other routers with
RIPv2.
■
Do Not Send: Does not transmit RIP updates. Passively monitors route
information advertised by other routers attached to the network.
The default depends on the setting for the Global RIP Version. (See
“Configuring General Protocol Settings” on page 507.)