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Home Documentation Junos OS Junos CLI Reference CLI Reference B

Junos CLI Reference

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Junos CLI Reference
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{ "lLangCode": "en", "lName": "English", "lCountryCode": "us", "transcode": "en_US" }
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by-protocol (IDS MS-MPC)

date_range 19-Nov-23
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Syntax

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by-protocol {
    icmp {
        maximum number;
        packets number;
        rate number;
    }
    tcp {
        maximum number;
        packets number;
        rate number;
    }
    udp {
        maximum number;
        packets number;
        rate number;
    }
}

Hierarchy Level

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[edit services ids rule rule-name term term-name then session-limit by-destination],
[edit services ids rule rule-name term term-name then session-limit by-source]

Description

Configure the IDS rule session limits for an individual destination or source address or subnet for the specified protocol. This protects against network probing attacks and network flooding attacks. This IDS rule can only be assigned to a service set on an MS-MPC.

When a session limit is exceeded for a source or destination for the protocol, packets from the source or to the destination are dropped until the session limit is no longer exceeded.

To specify limits for destination or source subnets rather than individual addresses, include the aggregation statement at the [edit services ids rule rule-name term term-name then] hierarchy level.

Options

icmp

Apply session limits to ICMP packets.

maximum number

Specify the maximum number of concurrent ICMP sessions allowed for an individual destination or source address or subnet.

packets number

Specify the maximum number of ICMP packets per second allowed for an individual destination or source address or subnet.

rate number

Specify the maximum number of ICMP connections per second allowed for an individual destination or source address or subnet.

tcp

Session limits apply to TCP packets.

maximum number

Specify the maximum number of concurrent TCP sessions allowed for an individual destination or source address or subnet.

packets number

Specify the maximum number of TCP packets per second allowed for an individual destination or source address or subnet.

rate number

Specify the maximum number of TCP connections per second allowed for an individual destination or source address or subnet.

udp

Session limits apply to UDP packets.

maximum number

Specify the maximum number of concurrent UDP sessions allowed for an individual destination or source address or subnet.

packets number

Specify the maximum number of UDP packets per second allowed for an individual destination or source address or subnet.

rate number

Specify the maximum number of UDP connections per second allowed for an individual destination or source address or subnet.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 17.1.

Related Documentation

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