Basic Management Tasks
4-10
4
• The switch must always be configured with a link-local address. Therefore any
configuration process that enables IPv6 functionality, or assigns a global unicast
address to the switch, will also automatically generate a link-local unicast address.
The prefix length for a link-local address is fixed at 64 bits, and the host portion of
the default address is based on the modified EUI-64 (Extended Universal Identifier)
form of the interface identifier (i.e., the physical MAC address). Alternatively, you
can manually configure the link-local address by entering the full address with the
network prefix FE80.
• To connect to a larger network with multiple subnets, you must configure a global
unicast address. There are several alternatives to configuring this address type:
- The global unicast address can be automatically configured by taking the
network prefix from router advertisements observed on the local interface, and
using the modified EUI-64 form of the interface identifier to automatically create
the host portion of the address.
- It can be manually configured by specifying the entire network prefix and prefix
length, and using the EUI-64 form of the interface identifier to automatically
create the low-order 64 bits in the host portion of the address.
- You can also manually configure the global unicast address by entering the full
address and prefix length.
- Or you can include a general prefix for the network portion of the address (as
described under "Configuring an IPv6 General Network Prefix" on page 4-15).
When using this method, remember that the prefix length specified on the IPv6
Configuration page must include both the length of the general prefix and any
contiguous bits (from the left of the specified address) that are added to the
general prefix to form the extended network portion of the address.
• You can configure multiple IPv6 global unicast addresses per interface, but only
one link-local address per interface.
• If a duplicate link-local address is detected on the local segment, this interface is
disabled and a warning message displayed on the console. If a duplicate global
unicast address is detected on the network, the address is disabled on this
interface and a warning message displayed on the console.
Command Attributes
•
VLAN
– ID of the configured VLAN (1-4093). By default, all ports on the stack are
members of VLAN 1. However, the management station can be attached to a port
belonging to any VLAN, as long as that VLAN has been assigned an IP address.
•
IPv6 Address Processing
– Enables IPv6 on an interface. Note that when an
explicit address is assigned to an interface, IPv6 is automatically enabled, and
cannot be disabled until all assigned addresses have been removed.
•
IPv6 Interface Status
– Shows if IPv6 interface address configuration state is
stable (Enabled) or unstable (Stale).
•
IPv6 Default Gateway
– Sets the IPv6 address of the default next hop router to
use when no other routing information is known about an IPv6 address.
- The specified gateway is only valid if routing is disabled using the IP / General /
Global Settings screen (see page 19-4) or no other routing information is known
Summary of Contents for 8926EM
Page 6: ...ii ...
Page 34: ...Getting Started ...
Page 44: ...Introduction 1 10 1 ...
Page 62: ...Initial Configuration 2 18 2 ...
Page 64: ...Switch Management ...
Page 76: ...Configuring the Switch 3 12 3 ...
Page 118: ...Basic Management Tasks 4 42 4 ...
Page 164: ...User Authentication 6 28 6 ...
Page 176: ...Access Control Lists 7 12 7 ...
Page 284: ...Quality of Service 14 8 14 ...
Page 294: ...Multicast Filtering 15 10 15 ...
Page 300: ...Domain Name Service 16 6 16 ...
Page 310: ...Dynamic Host Configuration Protocol 17 10 17 ...
Page 320: ...Configuring Router Redundancy 18 10 18 ...
Page 344: ...IP Routing 19 24 19 ...
Page 356: ...Unicast Routing 20 12 20 Web Click Routing Protocol RIP Statistics Figure 20 5 RIP Statistics ...
Page 386: ...Unicast Routing 20 42 20 ...
Page 388: ...Command Line Interface ...
Page 400: ...Overview of the Command Line Interface 21 12 21 ...
Page 466: ...SNMP Commands 24 16 24 ...
Page 520: ...Access Control List Commands 26 18 26 ...
Page 546: ...Rate Limit Commands 30 2 30 ...
Page 612: ...VLAN Commands 34 24 34 ...
Page 626: ...Class of Service Commands 35 14 35 ...
Page 670: ...DHCP Commands 39 16 39 ...
Page 716: ...IP Interface Commands 41 36 41 ...
Page 768: ...IP Routing Commands 42 52 42 ...
Page 770: ...Appendices ...
Page 791: ......