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Figure 6- 125. DNS Relay Static Settings and Table window
To add an entry into the
DNS Relay Static Table, simply enter a Domain Name with its corresponding IP address and click Add.A successful entry will be
presented in the table below, as shown in the example above.To erase an entry from the table, click the corresponding
8 of the entry you wish to delete.
VRRP
VRRP or Virtual Routing Redundancy Protocol is a function on the Switch that dynamically assigns responsibility for a virtual router to one of the VRRP routers on a
LAN.The VRRP router that controls the IP address associated with a virtual router is called the Master, and will forward packets sent to this IP address.This will
allow any Virtual Router IP address on the LAN to be used as the default first hop router by end hosts. Utilizing VRRP, the administrator can achieve a higher
available default path cost without needing to configure every end host for dynamic routing or routing discovery protocols.
Statically configured default routes on the LAN are prone to a single point of failure.VRRP is designed to eliminate these failures by setting an election protocol
that will assign a responsibility for a virtual router to one of the VRRP routers on the LAN.When a virtual router fails, the election protocol will select a virtual
router with the highest priority to be the Master router on the LAN.This retains the link and the connection is kept alive, regardless of the point of failure.
To configure VRRP for virtual routers on the Switch, an IP interface must be present on the system and it must be a part of a VLAN.VRRP IP interfaces may be
assigned to every VLAN, and therefore IP interface, on the Switch.VRRP routers within the same VRRP group must be consistent in configuration settings for this
protocol to function optimally.
VRRP Configuration
To enable VRRP globally on the Switch, click Configuration > Layer 3 IP Networking > VRRP > VRRP Global Settings:
Figure 6- 126.VRRP Global Settings window
The f
ollo
wing fields can be set:
Parameter Description
Gl
obal VRRP
Use the pull-do
wn menu to enable or disable VRRP globally on the Switch.The default is
Disabled.
Non-o
wner r
esponse PING
Enabling this parameter will allo
w the vir
tual IP ad
dr
ess to be pinged fr
om other host end nodes to v
erify
connectivity.This will only enable the ping connectivity check function.This command is Disabled by default.
Click
A
pply
to implement changes made
.
125
Allied Telesyn AT-9724TS High-Density Layer 3 Stackable Gigabit Ethernet Switch
- AT-9724TS 1
- Table of Contents 3
- Purpose of This Guide 6
- How This Guide is Organized 6
- Document Conventions 7
- Where to Find Related Guides 8
- Returning Products 9
- FTP Server 9
- Tell Us What You Think 10
- Chapter 1 - Introduction 11
- 1-2 Switch Description 12
- 1-3 Features 12
- 1-4 Ports 13
- Installing the SFP ports 13
- 1-5 Front Panel Components 13
- Chapter 2 - Installation 15
- 2-5 Power On 17
- 2-6 Power Failure 17
- UTP cable 18
- Optical fibre cable 19
- 4-7 Password Protection 23
- 4-8 SNMP Settings 23
- 4-9 IP Address Assignment 24
- 5-1 Introduction 26
- 5-2 Login to Web Manager 26
- 5-3 Web-based User Interface 27
- Areas of the User Interface 27
- Web Pages 28
- 6-1 Switch Information 29
- 6-2 IP Address 30
- Advanced Settings 31
- 6.3 Box Information 32
- 6-4 Port Configuration 33
- 6-5 Port Description 34
- 6-6 Port Mirroring 35
- 6-7 Link Aggregation 35
- 6-8 LACP Port Setting 37
- C Notification 38
- 6-10 IGMP 39
- IGMP Versions 1 and 2 39
- IGMP Snooping 41
- Static Router Ports 42
- 6.11 Spanning Tree 43
- 802.1s MSTP 43
- MST Configuration Table 46
- MSTI Port Information 49
- STP Instance Settings 50
- STP Port Settings 52
- Unicast Forwarding 53
- 8 under the Delete 53
- Static Multicast Forwarding 54
- 802.1Q VLAN Tags 56
- Port-based VLANs 59
- VLAN Segmentation 59
- VLAN and Trunk Groups 59
- Protocol VLANs 59
- Static VLAN Entry 60
- GVRP Setting 63
- 6-15 Traffic Control 64
- 6-16 Port Security 65
- 6-17 Port Lock Entries 66
- 1 2 3 67
- Bandwidth Control 68
- QoS Scheduling Mechanism 69
- Output Scheduling 69
- 802.1p Default Priority 71
- 802.1p User Priority 71
- Traffic Segmentation 72
- 6-19 System Log Server 73
- 6-20 SNTP Settings 75
- Time Zone and DST 76
- 6-21 Access Profile Table 77
- Configur 77
- AT-9724TS Switch 86
- Uncontrolled Port 86
- Configure Authenticator 87
- Local Users 88
- PAE System Control 89
- RADIUS Server 93
- 6-23 Layer 3 IP Networking 94
- Setting Up IP Interfaces 94
- MD5 Key Table Configuration 96
- Route Redistribution Settings 97
- Static/Default Route 98
- Route Preference Settings 99
- Static ARP Table 101
- 8 under the Delete heading 101
- Setting Up RIP 103
- Shortest Path Tree 105
- Areas and Border Routers 106
- Link-State Packets 106
- Hello Packet 109
- Link-State Request Packet 111
- Link-State Update Packet 112
- Router Links Advertisements 114
- Summary Link Advertisements 116
- General OSPF Settings 118
- OSPF Area ID Setting 118
- OSPF Interface Settings 119
- 8 in the Delete 121
- OSPF Host Route Settings 122
- DHCP / BOOTP Relay 123
- DHCP/BootP Relay Settings 124
- DNS Relay 124
- DNS Relay Static Settings 125
- VRRP Configuration 126
- VRRP Interface Settings 127
- 8 to delete this VRRP entry 127
- IP Multicast Routing Protocol 130
- IGMP Interface Configuration 130
- DVMRP Interface Configuration 131
- DVMRP Global Setting 131
- DVMRP Interface Settings 131
- PIM-DM Configuration 132
- 7-1 Security IP 134
- 7-2 User Accounts 134
- Admin and User Privileges 135
- Authentication Server Hosts 139
- Login Method Lists 140
- Local Enable Password 142
- Enable Admin 143
- 7-4 Secure Socket Layer (SSL) 144
- Download Certificate 144
- Configuration 145
- 7-5 Secure Shell (SSH) 146
- SSH Configuration 146
- SSH Algorithm 146
- SSH User Authentication 148
- Chapter 8 - SNMP Manager 150
- SNMP View Table 152
- 8 in the Delete column cor 152
- SNMP Group Table 153
- SNMP Host Table 155
- SNMP Engine ID 156
- Chapter 9 - Monitoring 157
- 9-3 Packets 158
- Received (RX) 158
- UMB Cast (RX) 160
- 9-4 Errors 163
- 9-5 Size 166
- Stacking Information 167
- Device Status 168
- 9-6 MAC Address 169
- 9-7 Switch History Log 170
- 9-8 IGMP Snooping Gr 171
- 9-9 IGMP Snooping Forwarding 171
- 9-10 Browse Router Port 172
- 9-11 Port Access Control 172
- Authenticator State 172
- Authenticator Diagnostics 176
- RADIUS Authentication 177
- RADIUS Accounting 178
- 9-12 Lay 179
- Browse IP Address 179
- Browse Routing Table 180
- Browse ARP Table 180
- Browse IGMP Group Table 181
- OSPF Monitoring 181
- Browse OSPF Neighbor Table 182
- DVMRP Monitoring 183
- Browse DVMRP Routing Table 183
- PIM Monitoring 184
- PIM Neighbor Address Table 184
- 10-1 TFTP Service 185
- Download Firmware 185
- Config Firmware Image 187
- 10-4 Ping Test 188
- 10-5 Save Changes 189
- 10-6 Reset 189
- 10-7 Reboot Device 190
- 10-8 Logout 190
- Physical & Envir 191
- Performance 192
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