802.1x Overview
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If the port link type is Hybrid, the assigned VLAN is allowed to pass the current
port without carrying the tag. The default VLAN ID of the port is that of the
assigned VLAN.
The assigned VLAN neither changes nor affects the configuration of a port.
However, as the assigned VLAN has higher priority than the user-configured VLAN,
it is the assigned VLAN that takes effect after a user passes authentication. After
the user goes offline, the port returns to its original VLAN.
For details about VLAN configuration, refer to “VLAN Configuration” on page 83.
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With a Hybrid port, the VLAN assigning will fail if you have configured the
assigned VLAN to carry tags.
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With a Hybrid port, you cannot configure an assigned VLAN to carry tags after
the VLAN has been assigned.
Guest VLAN
Guest VLAN allows unauthenticated users to access some special resources.
Guest VLAN is the default VLAN that a supplicant on a port can access without
authentication. After the supplicant passes 802.1x authentication, the port leaves
the guest VLAN and the supplicant can access other network resources.
A user of the guest VLAN can perform operations such as downloading and
upgrading the authentication client software. If a supplicant does not have the
required authentication client software or the version of the client software is
lower, the supplicant will fail the authentication. If no supplicant on a port passes
authentication in a certain period of time (45 seconds by default), the port will be
added into the guest VLAN.
If a device with 802.1x enabled and the guest VLAN correctly configured sends an
EAP-Request/Identity packet for the allowed maximum number of times but gets
no response, it adds the port into the guest VLAN according to port link type in
the similar way as described in VLAN assigning.
When a supplicant added into the guest VLAN initiates another authentication
process, if the authentication is not successful, the supplicant stays in the guest
VLAN; otherwise, two cases may occur:
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The authentication server assigns a VLAN: The port leaves the guest VLAN and
joins the assigned VLAN. If the supplicant goes offline, the port returns to its
original VLAN, that is, the VLAN to which it is configured to belong and it
belongs before joining the guest VLAN.
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The authentication server does not assign any VLAN: The port leaves the guest
VLAN and returns to its original VLAN. If the supplicant goes offline, the port
just stays in its original VLAN.
ACL assignment
ACLs provide a way of controlling access to network resources and defining access
rights. When a user logs in through a port, and the RADIUS server is configured
with authorization ACLs, the device will permit or deny data flows traversing
through the port according to the authorization ACLs. Before specifying
authorization ACLs on the server, you need to configure the ACL rules on the
Summary of Contents for 4800G Series
Page 26: ...26 CHAPTER NETWORKING APPLICATIONS ...
Page 30: ...30 CHAPTER 1 LOGGING IN TO AN ETHERNET SWITCH ...
Page 62: ...62 CHAPTER 3 LOGGING IN THROUGH TELNET ...
Page 70: ...70 CHAPTER 5 LOGGING IN THROUGH WEB BASED NETWORK MANAGEMENT SYSTEM ...
Page 72: ...72 CHAPTER 6 LOGGING IN THROUGH NMS ...
Page 82: ...82 CHAPTER 8 CONTROLLING LOGIN USERS ...
Page 98: ...98 CHAPTER 9 VLAN CONFIGURATION ...
Page 108: ...108 CHAPTER 10 VOICE VLAN CONFIGURATION ...
Page 119: ...GVRP Configuration Examples 119 DeviceB display vlan dynamic No dynamic vlans exist ...
Page 120: ...120 CHAPTER 11 GVRP CONFIGURATION ...
Page 160: ...160 CHAPTER 17 PORT ISOLATION CONFIGURATION ...
Page 172: ...172 CHAPTER 19 LINK AGGREGATION CONFIGURATION ...
Page 196: ...196 CHAPTER 22 DLDP CONFIGURATION ...
Page 240: ...240 CHAPTER 23 MSTP CONFIGURATION ...
Page 272: ...272 CHAPTER 27 RIP CONFIGURATION ...
Page 364: ...364 CHAPTER 29 IS IS CONFIGURATION ...
Page 426: ...426 CHAPTER 31 ROUTING POLICY CONFIGURATION ...
Page 442: ...442 CHAPTER 33 IPV6 RIPNG CONFIGURATION ...
Page 466: ...466 CHAPTER 35 IPV6 IS IS CONFIGURATION ...
Page 488: ...488 CHAPTER 36 IPV6 BGP CONFIGURATION ...
Page 498: ...498 CHAPTER 37 ROUTING POLICY CONFIGURATION ...
Page 540: ...540 CHAPTER 40 TUNNELING CONFIGURATION ...
Page 552: ...552 CHAPTER 41 MULTICAST OVERVIEW ...
Page 604: ...604 CHAPTER 43 MLD SNOOPING CONFIGURATION ...
Page 628: ...628 CHAPTER 46 IGMP CONFIGURATION ...
Page 700: ...700 CHAPTER 48 MSDP CONFIGURATION ...
Page 812: ...812 CHAPTER 57 DHCP SERVER CONFIGURATION ...
Page 822: ...822 CHAPTER 58 DHCP RELAY AGENT CONFIGURATION ...
Page 834: ...834 CHAPTER 61 BOOTP CLIENT CONFIGURATION ...
Page 850: ...850 CHAPTER 63 IPV4 ACL CONFIGURATION ...
Page 856: ...856 CHAPTER 64 IPV6 ACL CONFIGURATION ...
Page 860: ...860 CHAPTER 65 QOS OVERVIEW ...
Page 868: ...868 CHAPTER 66 TRAFFIC CLASSIFICATION TP AND LR CONFIGURATION ...
Page 888: ...888 CHAPTER 69 PRIORITY MAPPING ...
Page 894: ...894 CHAPTER 71 TRAFFIC MIRRORING CONFIGURATION ...
Page 904: ...904 CHAPTER 72 PORT MIRRORING CONFIGURATION ...
Page 930: ...930 CHAPTER 74 UDP HELPER CONFIGURATION ...
Page 990: ...990 CHAPTER 79 FILE SYSTEM MANAGEMENT CONFIGURATION ...
Page 1000: ...1000 CHAPTER 80 FTP CONFIGURATION ...
Page 1020: ...1020 CHAPTER 82 INFORMATION CENTER CONFIGURATION ...
Page 1038: ...1038 CHAPTER 84 SYSTEM MAINTAINING AND DEBUGGING ...
Page 1046: ...1046 CHAPTER 85 DEVICE MANAGEMENT ...
Page 1129: ...SSH Client Configuration Examples 1129 SwitchB ...
Page 1130: ...1130 CHAPTER 88 SSH CONFIGURATION ...
Page 1160: ...1160 CHAPTER 90 RRPP CONFIGURATION ...
Page 1180: ...1180 CHAPTER 91 PORT SECURITY CONFIGURATION ...
Page 1192: ...1192 CHAPTER 92 LLDP CONFIGURATION ...
Page 1202: ...1202 CHAPTER 93 POE CONFIGURATION ...
Page 1218: ...1218 CHAPTER 96 HTTPS CONFIGURATION ...