CTX202367
2015-10-30
1970-01-01
From a network trace: Netscaler receives broadcast DHCP requests; ie, destination IP address is 255.255.255.255; Netscaler ...

Symptoms or Error

From a network trace:

  • Netscaler receives broadcast DHCP requests; ie, destination IP address is 255.255.255.255
  • Netscaler rebroadcasts DHCP request, with it's own IP address as the source and broadcast (255.255.255.255) as the destination
  • Disable of L2 and L3 modes on Netscaler does not prevent the issue

??


Solution

Issue ID 591657
Fixed in Netscaler 10.5 / Build 60.x
Fixed in Netscaler 11.0 / Build 64.x

Temporary workaround:
add ns acl BlockDHCPBroadcast DENY -protocol UDP -destPort 67
apply ns acl


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Problem Cause

Netscaler erroneously re-broadcasting DHCP broadcast packets.

Applicable Products


 

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