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Cisco IOS in a Nutshell, 2nd Edition by James Boney

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Name

ip mask-reply — interface

Synopsis

ip mask-reply
no mask-reply

Configures

Responses to ICMP mask request messages

Default

Disabled

Description

By default, the router does not respond to ICMP mask requests. This command enables responses through the interface.

Example

interface ethernet 1
  ip mask-reply

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