Reference Guide

1022 | Neighbor Discovery Protocol (NDP)
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Defaults
No default values or behavior
Command Modes
INTERFACE
Command
History
Usage
Information
The ip nd mtu command sets the value advertised to routers. It does not set the actual MTU
rate. For example, if
ip nd mtu is set to 1280, the interface will still pass 1500-byte packets.
The
mtu command sets the actual frame size passed, and can be larger than the advertised
MTU. If the mtu setting is larger than the ip nd mtu, an error message is sent, but the
configuration is accepted.
% Error: nd ra mtu is greater than link mtu, link mtu will be used.
Related
Commands
ipv6 nd other-config-flag
e
Set the other stateful configuration flag in the IPv6 router advertisement. The description of
this flag from RFC 2461 (http://tools.ietf.org/html/rfc2461) is:
O: 1-bit “Other stateful configuration” flag. When set, hosts use the administered (stateful)
protocol for autoconfiguration of other (non-address) information. The use of this flag is
described in:
Thomson, S. and T. Narten, “IPv6 Address Autoconfiguration”, RFC 2462, December 1998.
Syntax
ipv6 nd other-config-flag
To clear the flag from the IPv6 router advertisements, use the no ipv6 nd other-config-flag
command.
Defaults
The default flag is 0.
Command Modes
INTERFACE
ipv6 nd prefix
e
Configure how IPv6 prefixes are advertised in the IPv6 router advertisements. The
description of an IPv6 prefix from RFC 2461(http://tools.ietf.org/html/rfc2461) is a bit string
that consists of some number of initial bits of an address.
Syntax
ipv6 nd prefix {ipv6-address prefix-length | default} [no-advertise] | [no-autoconfig | no-rtr-address
| off-link
]
Version 8.3.1.0 Introduced
mtu Set the maximum link MTU (frame size) for an Ethernet interface.