DHCP - How to Reserve IP Addresses
I have a DHCP server where the distribution list is from 198.1.1.51 to 198.1.1.199.
But I would like to reserve 198.1.1.51 and 198.1.1.52 specifically for two switches.
I went to the RESERVATIONS and keyed in these two IP Addresses and the mac addresses of the switches and under supported types, i select DHCP.
When I go to Address Leases - i see that 198.1.1.51 & 52 shows as reservation inactive and the type shows as NONE.
I have already released the IP address 198.1.1.51 & 52 from the users laptops and renewed their IP addresses, but on the DHCP server it still shows inactive.
Why is this so?
Do I need to go to the Addess Pool and include these two IP addresses (198.1.1.51 & 52) under the excluded list?
Please note that the address range for distrubution shows 198.1.1.51 to 198.1.1.199.
What should I do, and what have I done wrong? Has 198.1.1.51 & 52 been reserved for the switch? Why does it show inactive in the address leases (when both the switches have been turned on).
But I would like to reserve 198.1.1.51 and 198.1.1.52 specifically for two switches.
I went to the RESERVATIONS and keyed in these two IP Addresses and the mac addresses of the switches and under supported types, i select DHCP.
When I go to Address Leases - i see that 198.1.1.51 & 52 shows as reservation inactive and the type shows as NONE.
I have already released the IP address 198.1.1.51 & 52 from the users laptops and renewed their IP addresses, but on the DHCP server it still shows inactive.
Why is this so?
Do I need to go to the Addess Pool and include these two IP addresses (198.1.1.51 & 52) under the excluded list?
Please note that the address range for distrubution shows 198.1.1.51 to 198.1.1.199.
What should I do, and what have I done wrong? Has 198.1.1.51 & 52 been reserved for the switch? Why does it show inactive in the address leases (when both the switches have been turned on).
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yes, your switches are probably manually configured with static IP addresses.
ASKER
Do I need to Exclude these two IP Addresses from the Address Pool.
In the Address Pool, it shows the Address Range for distribution is from 198.1.1.51 to 198.1.1.199.
Do I need to create an exclusion for 198.1.1.51 & 198.1.1.52? If I do this, how will it affect the current Address pool which shows that the distribution list starts from 198.1.1.51?
I have another question. If I wanted to add an additional distribution list of IP Addresses, say from 198.1.1.200 to 198.1.1.210 - how do I do this please?
In the Address Pool, it shows the Address Range for distribution is from 198.1.1.51 to 198.1.1.199.
Do I need to create an exclusion for 198.1.1.51 & 198.1.1.52? If I do this, how will it affect the current Address pool which shows that the distribution list starts from 198.1.1.51?
I have another question. If I wanted to add an additional distribution list of IP Addresses, say from 198.1.1.200 to 198.1.1.210 - how do I do this please?
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Nope, you cannot exclude them. If you have configured IP reservation for some MACs and in the same scope you excluded them, they will never be issued to clients :)
Exclude IP is only for static IP addresses defined on clients and DHCP pool have them, then you have to exclude IPs to avoid IP adresses duplication.
All devices which have configured reservations must be set up as DHCP clients, no static IP, because they never pull address from DHCP server.
Regards,
Krzysztof
Exclude IP is only for static IP addresses defined on clients and DHCP pool have them, then you have to exclude IPs to avoid IP adresses duplication.
All devices which have configured reservations must be set up as DHCP clients, no static IP, because they never pull address from DHCP server.
Regards,
Krzysztof
ASKER
Hi All,
I have created an exclusion for the 2 IP Addresses that I mentioned.
If I wanted to add a new scope above the IP Addresses of .199, how do I add this?
There is a new scope, multiscope and one other selection. What is the difference between these three? Which should I choose?
I have created an exclusion for the 2 IP Addresses that I mentioned.
If I wanted to add a new scope above the IP Addresses of .199, how do I add this?
There is a new scope, multiscope and one other selection. What is the difference between these three? Which should I choose?
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Krzysztof I don't understand Super Scope. Could you re-explain it to me again please?
And New Scope, what do you mean by solid range?
And New Scope, what do you mean by solid range?
If you want to Expand your Scope then you can open DHCP Manager, Right Click your existing scope and Choose Properties. You can Edit the Address Pool.
DHCP-Scope-Properties.PNG
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