13 blocking direct broadcast, 14 maximum transmission unit (mtu), Blocking direct broadcast – Siemens S223 User Manual

Page 276: Maximum transmission unit (mtu)

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UMN:CLI User Manual

SURPASS hiD 6615 S223/S323 R1.5

276 A50010-Y3-C150-2-7619

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SWITCH(bridge)#

8.13

Blocking Direct Broadcast

RFC 2644 recommends that system blocks broadcast packet of same network bandwidth
with interfaceof equipment, namely Direct broadcast packet. Hereby, SURPASS hiD 6615
supposed to block Direct broadcast packet by default setting. However, you can enable or
disable it in SURPASS hiD 6615. In order to block Direct broadcast packet, use the fol-
lowing command.

Command Mode

Description

no ip forward direct-broadcast

Enables blocking Direct broadcast packet. (Default)

ip forward direct-broadcast

Global

Disables blocking Direct broadcast packet.

The following is an example of blocking Direct broadcast packet and showing it.

SWITCH(config)# ip forward direct-broadcast

SWITCH(config)# show running-config

Building configuration...

(omitted)

!

ip forward direct-broadcast

!

no snmp

!

SWITCH(config)#

8.14

Maximum Transmission Unit (MTU)

Maximum value for the length of the data payload can be transmitted. User can control
Maximum Transmission Unit (MTU) with below command.

Command Mode

Description

mtu

<68-1500>

Configures maximum MTU size.

no mtu

Interface

Returns to the default MTU size.

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