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Forum Discussion
psda
Jan 03, 2024Aspirant
Problems creating reserved IP address in a DHCP Pool
We created a pool of reserved DHCP IP addresses under an older firmware release (13.0.4.13). We've upgraded to 13.0.4.17 and are now trying to both update existing reservations and add new reservations of manual IP addresses.
After the 13.0.4.17 upgrade, when I try to either add or update a static DHCP pool reservation I get the following error
Error! Failed to Set 'Host Mask' with '255.255.255.0'
The IP range for this pool is
10.4.0.x
I've tried a variety of valid host masks but they all result in this error.
5 Replies
- LaurentMaNETGEAR Expert
Hi psda ,
Sorry about this issue, maybe there is a conflict somewhere else - can you edit your config file or do a show run like I do below, to show your static pools and your VLAN interfaces? Alternatively, please send your tech-support file (Diagnostics\Support Diagnostics to ProAVDesign@netgear.com) with a link to this post and one of our SEs will help you.
On my side, using the latest NETGEAR Engage Controller (www.netgear.com/engage) and creating a VAN 10 with your IP scheme, I can create plenty of static pools easily in Engage (Site Settings\VLAN Routing and DHCP Server\Advanced\DHCP Reservations):
interface vlan 1
routing
ip address 192.168.253.1 255.255.255.0
exitinterface vlan 10
routing
ip address 10.4.0.1 255.255.255.0
exit
ip management vlan 1 192.168.253.1 255.255.255.0
router rip
exitservice dhcp
ip dhcp excluded-address 192.168.253.1 192.168.253.9
ip dhcp excluded-address 192.168.253.101 192.168.253.254
ip dhcp excluded-address 192.168.20.1 192.168.20.99
ip dhcp excluded-address 192.168.20.201 192.168.20.254
ip dhcp excluded-address 10.4.0.1 10.4.0.99
ip dhcp excluded-address 10.4.0.201 10.4.0.254
ip dhcp pool "pool_dynamic_1"
lease 0 4 0
dns-server 8.8.8.8 4.4.4.4
default-router 192.168.253.1
network 192.168.253.0 255.255.255.0
exitip dhcp pool "pool_dynamic_10"
lease 0 4 0
default-router 10.4.0.1
network 10.4.0.0 255.255.255.0
exitip dhcp pool "aabbccddeeff"
default-router 10.4.0.1
hardware-address aa:bb:cc:dd:ee:ff
host 10.4.0.101 255.255.255.0
netbios-node-type b-node
exitip dhcp pool "aabbccddeeaa"
default-router 10.4.0.1
hardware-address aa:bb:cc:dd:ee:aa
host 10.4.0.102 255.255.255.0
netbios-node-type b-node
exit
exit- psdaAspirant
I'm using the main UI and not the engage controller. I experimented with the engage controller and DHCP reservations but these only work if the controller is running and that isn't a viable scenario for our config.
What show option is dumping out the info you displayed above?
- LaurentMaNETGEAR Expert
Can you do "show run" after "enable" so in global admin mode, and copy paste the end of the config here, like me, starting with the VLAN IP interfaces, and all the DHCP services under?
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