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Cisco Employee

"ip helper" command on Nexus 5K

Are any of the following commands supported on Nexus 5K switches when deployed with L3 card:

  • ip helper address
  • ip forward-protocol
  • ip directed-broadcast

thanks

Munaf

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Accepted Solutions
Cisco Employee

"ip helper" command on Nexus 5K

Hi Munaf,

it is weird that a Cisco employee uses the public forum for these requests

anyway

  • ip helper address

    In NX-OS we use "ip dhcp relay address" command to relay the dhcp requests to a different subnet. It will work for DHCP requests only.

  • ip forward-protocol

    not supported in NX-OS yet. Enhancement bug opened > CSCts96902    N5548 L3 support for "ip forward-protocol udp"    which is a dup of  CSCtj78445    NX-OS ER: allow any udp broadcast with ip helper-address just like IOS

  • ip directed-broadcast

    Feature already supported on N5k with L3. What is missing is the possibility to add an ACL. Also for this an enhancement bug has been opened > CSCts96910    N5548 L3 support for ACL in "ip directed-broadcast" command

regards,

Riccardo

2 REPLIES
Cisco Employee

"ip helper" command on Nexus 5K

Hi Munaf,

it is weird that a Cisco employee uses the public forum for these requests

anyway

  • ip helper address

    In NX-OS we use "ip dhcp relay address" command to relay the dhcp requests to a different subnet. It will work for DHCP requests only.

  • ip forward-protocol

    not supported in NX-OS yet. Enhancement bug opened > CSCts96902    N5548 L3 support for "ip forward-protocol udp"    which is a dup of  CSCtj78445    NX-OS ER: allow any udp broadcast with ip helper-address just like IOS

  • ip directed-broadcast

    Feature already supported on N5k with L3. What is missing is the possibility to add an ACL. Also for this an enhancement bug has been opened > CSCts96910    N5548 L3 support for ACL in "ip directed-broadcast" command

regards,

Riccardo

Cisco Employee

"ip helper" command on Nexus 5K

Thanks a lot for the answer.

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