Hi Abhijit,
If you want the switch to be the DHCP server on your VLANs you have to define a pool for each of the VLANs, and be sure the switch has an active IP address on each of the VLANs.
If you have a central DHCP server, then you need to define an IP address for the switch on each of the VLANs and then use the ip helper-address command on each of the vlan interfaces.
For example setting "ip helper-address 192.168.100.100" on VLAN10 will make the switch relay DHCP requests to the DHCP server on IP 192.168.100.100.
Regards, Kim Pedersen ------------------------------ #dhcps ! set dhcp enable set dhcp pool pool-bms set dhcp pool pool-bms default-router 192.168.93.254 set dhcp pool pool-bms network 192.168.93.0 255.255.255.0 set dhcp pool pool-amx set dhcp pool pool-amx dns-server 192.168.92.254 set dhcp pool pool-amx default-router 192.168.92.254 set dhcp pool pool-amx network 192.168.92.0 255.255.255.0 set dhcp pool pool-wlan set dhcp pool pool-wlan dns-server 192.168.90.3 set dhcp pool pool-wlan default-router 192.168.91.254 set dhcp pool pool-wlan network 192.168.91.0 255.255.255.0 set dhcp pool pool-security set dhcp pool pool-security dns-server 192.168.90.3 set dhcp pool pool-security default-router 192.168.95.254 set dhcp pool pool-security network 192.168.95.0 255.255.255.0 set dhcp pool pool-lutron set dhcp pool pool-lutron default-router 192.168.94.254 set dhcp pool pool-lutron network 192.168.94.0 255.255.255.0 set dhcp pool pool-guest set dhcp pool pool-guest default-router 192.168.99.254 set dhcp pool pool-guest network 192.168.99.0 255.255.255.0 set dhcp pool MGMT set dhcp pool MGMT default-router 192.168.100.254 set dhcp pool MGMT network 192.168.100.0 255.255.255.0 ---------------------------- ! #Router Configuration router enable configure interface vlan 90 no shutdown ip address 192.168.90.250 255.255.255.0 exit interface vlan 91 no shutdown ip address 192.168.91.254 255.255.255.0 exit interface vlan 92 no shutdown ip address 192.168.92.250 255.255.255.0 exit interface vlan 93 no shutdown ip address 192.168.93.254 255.255.255.0 exit interface vlan 94 no shutdown ip address 192.168.94.250 255.255.255.0 exit interface vlan 95 no shutdown ip address 192.168.95.254 255.255.255.0 exit interface vlan 96 no shutdown ip address 192.168.96.250 255.255.255.0 exit interface vlan 99 no shutdown ip address 192.168.99.250 255.255.255.0 exit interface vlan 100 no shutdown ip address 192.168.100.250 255.255.255.0 exit -------------------------------------- Stephen Faulkner wrote:
Hmmm. Most of this stuff is in the manuals!! I cannot answer regarding DHCP server features/functionality on the C3 itself. I have set up UDP forwarding (ip-helper) on these - that's all. If the C3 ITSELF is the DHCP server then I don't see the need for the relay function except in neighbouring routers where there may be DHCP clients.
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