Users Guide

Parameters
<8-75> Wait duration in seconds for the TCP connection to be established.
Command Modes
CONFIGURATION
Command History
Version Description
9.10(0.0) Introduced on the S6100–ON.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.3(0.0) Introduced on the S4810, S4820T, S6000, and Z9000 platforms.
Usage Information You can congure the amount of time for which the device must wait before it attempts to establish a TCP
connection. Using this capability, you can limit the wait times for TCP connection requests. Upon responding to the
initial SYN packet that requests a connection to the router for a specic service (such as SSH or BGP) with a SYN
ACK, the router waits for a period of time for the ACK packet to be sent from the requesting host that will
establish the TCP connection.
ip unknown-unicast
Enable IPv4 catch-all route.
Syntax
ip unknown-unicast [vrf vrf-name]
To remove the IPv4 catch-all route (0.0.0.0/0) from the LPM route forwarding table in hardware which gets added
as a default conguration after the initialization of FIB Agent module, use the no ip unknown-unicast
command.
Defaults None
Parameters
vrf vrf-name (Optional) Enter the keyword vrf followed by the name of the VRF to enable catch-all
routes corresponding to that VRF.
Command Modes CONFIGURATION
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.10(0.0) Introduced on the S6100–ON.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
742 IPv4 Routing