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Network Security, ACL

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Chapter 4 Configure the Network with Omada SDN Controller 4. 5 Network Security Network Security is a portfolio of features designed to improve the usability and ensure the safety of your network and data. Network security services include ACL, URL Filtering, and Attack Defense, which implement policies and controls on multiple layers of defenses in the network. 4. 5. 1 ACL Overview ACL (Access Control List) allows a network administrator to create rules to restrict access to network resources. ACL rules filter traffic based on specified criteria such as source IP addresses, destination IP addresses, and port numbers, and determine whether to forward the matched packets. These rules can be applied to specific clients or groups whose traffic passes through the gateway, switches and EAPs. The system filters traffic against the rules in the list sequentially. The first match determines whether the packet is accepted or dropped, and other rules are not checked after the first match. Therefore, the order of the rules is critical. By default, the rules are prioritized by their created time. The rule created earlier is checked for a match with higher priority. To reorder the rules, select a rule and drag it to a new position. If no rules match, the device forwards the packet because of an implicit Permit All clause. The system provides three types of ACL: ■■ Gateway ACL After Gateway ACLs are configured on the controller, they can be applied to the gateway to control traffic which is sourced from LAN ports and forwarded to the WAN ports. You can set the Network, IP address, port number of a packet as packet-filtering criteria in the rule. ■■ Switch ACL After Switch ACLs are configured on the controller, they can be applied to the switch to control inbound and outbound traffic through switch ports. You can set the Network, IP address, port number and MAC address of a packet as packet-filtering criteria in the rule. ■■ EAP ACL After EAP ACLs are configured on the controller, they can be applied to the EAPs to control traffic in wireless networks. You can set the Network, IP address, port number and SSID of a packet as packet-filtering criteria in the rule. Configuration To complete the ACL configuration, follow these steps: 7 ) Create an ACL with the specified type. 87

Section	Page
About this Guide	2
Omada SDN Controller Solution Overview	3
Overview of Omada SDN Controller Solution	4
Core Components	5
Get Started with Omada SDN Controller	10
Set Up Your Software Controller	11
Determine the Network Topology	11
Install Omada Software Controller	12
Start and Log In to the Omada Software Controller	14
Set Up Your Hardware Controller	19
Determine the Network Topology	19
Deploy Omada Hardware Controller	19
Start and Log in to the Controller	20
Set up Your Cloud-Based Controller	24
Manage Omada Managed Devices and Sites	25
Create Sites	26
Adopt Devices	30
For Omada Software Controller / Omada Hardware Controller	30
For Omada Cloud-Based Controller	42
Configure the Network with Omada SDN Controller	45
Navigate the UI	46
Modify the Current Site Configuration	49
Site Configuration	49
Services	49
Advanced Features	52
Device Account	54
Configure Wired Networks	55
Set Up an Internet Connection	55
Configure LAN Networks	69
Configure Wireless Networks	78
Set Up Basic Wireless Networks	78
Advanced Settings	84
WLAN Schedule	86
802.11 Rate Control	86
MAC Filter	87
Network Security	89
ACL	89
URL Filtering	97
Attack Defense	100
Transmission	105
Routing	105
NAT	108
Session Limit	111
Bandwidth Control	112
Configure VPN	116
Create Profiles	143
Time Range	143
Groups	144
Authentication	149
Portal	149
802.1X	180
MAC-Based Authentication	183
RADIUS Profile	184
Services	187
Dynamic DNS	187
SNMP	189
UPnP	190
SSH	191
Reboot Schedule	191
PoE Schedule	192
Export Data	193
Configure the Omada SDN Controller	195
Manage the Controller	196
General Settings	196
Mail Server	197
History Data Retention	199
Customer Experience Improvement Program	199
HTTPS Certificate	200
Access Port Config	200
Manage Your Controller Remotely via Cloud Access	202
Maintenance	204
Controller Status	204
User Interface	204
Backup & Restore	206
Migration	207
Site Migration	207
Controller Migration	212
Configure and Monitor Omada Managed Devices	219
Introduction to the Devices Page	220
Configure and Monitor the Gateway	224
Configure the Gateway	224
Monitor the Gateway	228
Configure and Monitor Switches	232
Configure Switches	232
Monitor Switches	249
Configure and Monitor EAPs	253
Configure EAPs	253
Monitor EAPs	263
Monitor and Manage the Clients	270
Manage Wired and Wireless Clients in Clients Page	271
Introduction to Clients Page	271
Using the Clients Table to Monitor and Manage the Clients	271
Using the Properties Window to Monitor and Manage the Clients	273
Manage Client Authentication in Hotspot Manager	278
Authorized Clients	278
Vouchers	278
Local Users	281
Operators	284
Monitor the Network	287
View the Status of Network with Dashboard	288
Page Layout of Dashboard	288
Explanation of Widgets	290
View the Statistics of the Network	298
Performance	298
Switch Statistics	301
Speed Test Statistics	303
Monitor the Network with Map	305
Topology	305
Map	307
View the Statistics During Specified Period with Insight	310
Known Clients	310
Past Portal Authorizations	311
Rogue APs	312
View and Manage Logs	314
Alerts	315
Events	316
Notifications	317
Manage Administrator Accounts of Omada SDN Controller	323
Introduction to User Accounts	324
Manage and Create Local User Accounts	325
Edit the Master Administrator Account	325
Create and Manage Administrator and Viewer	327
Manage and Create Cloud User Accounts	330
Set Up the Cloud Master Administrator	330

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Chapter 4

Conﬁgure the Network with Omada SDN Controller

4. 5 Network Security

Network Security is a portfolio of features designed to improve the usability and ensure the safety

of your network and data. Network security services include

ACL

URL Filtering

, and

Attack Defense

which implement policies and controls on multiple layers of defenses in the network.

4. 5. 1

ACL

Overview

ACL (Access Control List) allows a network administrator to create rules to restrict access to network

resources. ACL rules filter traffic based on specified criteria such as source IP addresses, destination

IP addresses, and port numbers, and determine whether to forward the matched packets. These rules

can be applied to specific clients or groups whose traffic passes through the gateway, switches and

EAPs.

The system filters traffic against the rules in the list sequentially. The first match determines whether

the packet is accepted or dropped, and other rules are not checked after the first match. Therefore, the

order of the rules is critical. By default, the rules are prioritized by their created time. The rule created

earlier is checked for a match with higher priority. To reorder the rules, select a rule and drag it to a new

position. If no rules match, the device forwards the packet because of an implicit Permit All clause.

The system provides three types of ACL:

■

Gateway ACL

After Gateway ACLs are configured on the controller, they can be applied to the gateway to control

traffic which is sourced from LAN ports and forwarded to the WAN ports.

You can set the Network, IP address, port number of a packet as packet-filtering criteria in the rule.

■

Switch ACL

After Switch ACLs are configured on the controller, they can be applied to the switch to control

inbound and outbound traffic through switch ports.

You can set the Network, IP address, port number and MAC address of a packet as packet-filtering

criteria in the rule.

■

EAP ACL

After EAP ACLs are configured on the controller, they can be applied to the EAPs to control traffic

in wireless networks.

You can set the Network, IP address, port number and SSID of a packet as packet-filtering criteria

in the rule.

Configuration

To complete the ACL configuration, follow these steps:

7 )

Create an ACL with the specified type.