Reference Guide
ip-address 
mask
(OPTIONAL) Enter an IP address in dotted decimal format 
and enter a mask in either dotted decimal or /prefix format.
prefix-list (OPTIONAL) Enter the name of a prefix list name.
Defaults weight = 115
Command 
Modes
• ROUTER ISIS (for IPv4)
• CONFIGURATION-ROUTER-ISIS-ADDRESS-FAMILY-IPV6 (for IPv6)
Command 
History
This guide is platform-specific. For command information about other platforms, 
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version 9.0.2.0 Introduced on the S6000.
Version 
8.3.19.0
Introduced on the S4820T.
Version 
8.3.12.0
Introduced on the S4810.
Version 8.3.11.1 Introduced on the Z9000.
Version 6.3.1.0 Introduced.
Usage 
Information
The administrative distance indicates the trust value of incoming packets. A low 
administrative distance indicates a high trust rate. A high value indicates a lower 
trust rate. For example, a weight of 255 is interpreted that the routing information 
source is not trustworthy and should be ignored.
distribute-list in
Filter network prefixes received in updates.
S4820T
Syntax
distribute-list prefix-list-name in [interface]
To return to the default values, use the no distribute-list prefix-list-
name in [interface] command.
Parameters
prefix-list-
name
Specify the prefix list to filter prefixes in routing updates.
interface (OPTIONAL) Identifies the interface type slot/port as one of 
the following:
• For a 40-Gigabit Ethernet interface, enter the keyword 
fortyGigE then the slot/port information.
970
Intermediate System to Intermediate System (IS-IS)










