I have a SG300-28P running 22.214.171.124 which is configured in L3 mode. This unit is running its DHCP service for my LAN hosts.
I've only set up a part of my /24 LAN subnet as the DHCP scope and have statically configured a number of LAN hosts to use specific IP addresses in this subnet, based on MAC address. For these reserved addresses I have used addresses outside the range used for the DHCP scope.
Here's an example:
ip dhcp server ip dhcp pool host some-host-1 address 192.168.1.10 255.255.255.0 hardware-address b8:c7:5d:c7:f9:5e exit ip dhcp pool host some-host-2 address 192.168.1.11 255.255.255.0 hardware-address 20:c9:d0:9a:a2:fb exit ip dhcp pool network LAN address low 192.168.1.201 high 192.168.1.253 255.255.255.0 domain-name home.local default-router 192.168.1.1 dns-server 126.96.36.199 exit
However, what I'm seeing is the static hosts are being allocated addresses from the 192.168.1.201 thru 253 block (with the MAC Address/Client Identifier being shown with the correct MAC address but with a "01:" prefix).
Also I'm seeing a few (declined) entries which look similar to this "192.168.1.210Client Identifierc0.a8.6f.e22014-Mar-18 12:01:24DynamicDeclined", i.e. with a MAC address with just a XX.XX.XX.XX hex format.
I am having almost the same problem on Cisco SG300-28.
-Single default VLAN1 in L3 with 192.168.100.x/24 network, Switch IP 192.168.100.254/24 -Router/ISP modem's running NAT with LAN IP 192.168.100.1/24 -DHCP configured and assigning IP addresses to client machines from start of pool -But static reservations for client machines is NOT working with MAC/hardware addresses, haven't tried with Client IDs yet.
Q1-Is only option to configure static reservations is through client IDs? Q2-If so what will be the client IDs for MacBookPro, iphones and android devices? (I understand that windows devices have client IDs as 00 & 01:MACaddress Q3-Do I have to make each static entry with Default-Router & DNS for all devices when using Client IDs? (I already have pool configured to assign default gateway 192.168.100.1 and dns 188.8.131.52 , which works well with dynamic DHCP clients)
P.S. I am doing all configuration through GUI, am I missing out on any important feature via GUI?
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