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Barracuda NextGen Firewall X

Driver options for bcm5700 module (Broadcom Gigabit Cards)

  • Type: Knowledgebase
  • Date changed: 5 months ago
Solution #00005096

This solution replies to:
- NG Firewall firmware versions 4.2.x
- netfence firmware versions 4.2.x


Some switches require setting the link speed of a network adapter manually, whitout autonegotiation. 


This is possible via "Config" > "Box" > "Network" > "Inerfaces" > "Physical Interfaces" or directly in the interface setting via  "Config" > "Box" > "Network" > "Inerfaces" > "Network Interface Cards" as a driver module option.
To set the link speed of a network card manually you have to enter the driver options of the respective network card driver.


Driver Options:

Auto Negotation:

auto_speed=0 (Auto Negotation off)
auto_speed=1 (Auto Negotation on)


Line Speed:

line_speed=0 (Autonegotiate for highest speed supported) (default)
line_speed=10 (10 MBit/s)
line_speed=100 (100 MBit/s)
line_speed=1000 (1000 MBit/s)


Full Duplex:

full_duplex=0 (half-duplex)
full_duplex=1 (full-duplex)(default)



mtu=xxx (xxx=size)




To define the link speed of one interface to 100 MBit Full Duplex enter the following driver parameters:





To define the link speed of one Broadcom interface to 100 MBit Half Duplex and the other Broadcom interface to 1000 MBit Full Duplex enter the following driver parameters:





For further information on network card drivers please visit the hardware support section of the support page.



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