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Not Able To Configure DHCP Server Options 3 and 6 When Last Octet IP Address Greater Than 223

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Information

 
TitleNot Able To Configure DHCP Server Options 3 and 6 When Last Octet IP Address Greater Than 223
Symptoms
  • Errors when DHCP server options 3 and 6 configured with ip address last octet above 223
ERS3650GTS-PWR+(config)#ip dhcp-server option-3 10.10.10.254 
% Cannot modify settings 
% Invalid address 
ERS3650GTS-PWR+(config)#ip dhcp-server option-3 10.10.10.224 
% Cannot modify settings 
% Invalid IP address: multicast address not allowed 
3650GTS-PWR+(config)#ip dhcp-server option-6 10.10.10.254 
% Cannot modify settings 
% Invalid address 
3650GTS-PWR+(config)#ip dhcp-server option-6 10.10.10.224 
% Cannot modify settings 
% Invalid IP address: multicast address not allowed 
3650GTS-PWR+(config)#
  • No error seen when last octet 223 or lower
3650GTS-PWR+(config)#ip dhcp-server option-3 10.10.10.223 
3650GTS-PWR+(config)#ip dhcp-server option-6 10.10.10.223 
3650GTS-PWR+(config)#ip dhcp-server option-3 10.10.10.1
3650GTS-PWR+(config)#ip dhcp-server option-6 10.10.10.1
3650GTS-PWR+(config)#

 
Environment
  • ERS 3600
  • Release 6.2.0.057
Cause
Software defect ERS3600-645
Resolution
Upgrade to release 6.2.1
Additional notes
Workaround
  • Configure DHCP option 3 or 6 with ip address last octet of 223 or lower

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