IP Router Configuration
Router Configuration Guide 193
shutdown
Syntax [no] shutdown
Context config>router>if>ipv6>secure-nd
Description This command enables or disables Secure Neighbor Discovery (SeND) on the interface.
stale-time
Syntax stale-time seconds
no stale-time
Context config>router>ipv6
config>router>if>ipv6
Description This command configures the time a neighbor discovery cache entry can remain stale before being
removed.
The no form of the command removes the stale-time value.
Default no stale-time
Parameters seconds — The allowed stale time (in seconds) before a neighbor discovery cache entry is
removed.
Values 60 to 65535
tcp-mss
Syntax tcp-mss mss-value
no tcp-mss
Context config>router>if
config>router>if>ipv6
Description This command statically sets the TCP maximum segment size (MSS) for TCP connections originated
from the associated IP interface to the specified value.
The no form of the command removes the static value and allows the TCP MSS value to be calculated
based on the IP MTU value by subtracting the base IP and TCP header lengths from the IP MTU value
(tcp_mss = ip_mtu – 40).
Default no tcp-mss
Parameters mss-value — The TCP MSS value that should be used in the TCP SYN packet during the three-
way handshake negotiation of a TCP connection.
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