techie08 Posted February 12, 2013 Posted February 12, 2013 Ive just set up the DHCP relay agent on my HP procurve switch and entered the ip addrees of of our DHCP server for vlan 100 but its not assigning DHCP address. IP routing is enabled on the switch and ive also created a new DHCP scope on the server. VLAN 100 also has an IP address set on the switch. Does any one have any ideas on why DHCP is not giving out IP address for the new range? Everything on vlan 1 is fine and picking up an address.
FN-GM Posted February 12, 2013 Posted February 12, 2013 Have you setup IP Helpers? If you give a static ip to a machine on the other VLAN does everything network wise work?
Geoff Posted February 12, 2013 Posted February 12, 2013 What did the windows server think? Did it issue an IP lease? Anything in the logs on the procurve? Also post your actual config.
timbo343 Posted February 12, 2013 Posted February 12, 2013 Have you given the DHCP server the default gateway address of vlan100
techie08 Posted February 12, 2013 Author Posted February 12, 2013 Have you setup IP Helpers? If you give a static ip to a machine on the other VLAN does everything network wise work? Yes it does.
techie08 Posted February 12, 2013 Author Posted February 12, 2013 The VLAN does have an ip address in the same range as the new DHCP scope and yes the DG is the ip address of vlan 100
timbo343 Posted February 12, 2013 Posted February 12, 2013 Not too sure if this helps... but i have got my 1 DHCP server working and giving out IP addresses through VLANs Running configuration: ; J8770A Configuration Editor; Created on release #L.11.20 hostname "ProCurve Switch 4204vl" snmp-server contact "xxxx" snmp-server location "xxxx" max-vlans 256 module 1 type J8768A module 2 type J9033A module 3 type J9033A module 4 type J9033A ip default-gateway 172.16.24.8 ip routing snmp-server community "public" Unrestricted vlan 1 name "DEFAULT_VLAN" untagged A1,A3-A24,B1-B24,C1-C24,D1-D24 ip address 172.16.24.24 255.255.248.0 ip helper-address 172.16.24.4 no untagged A2 ip igmp exit vlan 2 name "Staff-BYOD" untagged A2 ip address 192.168.12.1 255.255.252.0 ip helper-address 172.16.24.4 tagged A1,A3-A4,A9,A11,A14 exit vlan 3 name "Stu-BYOD" ip address 192.168.16.1 255.255.248.0 ip helper-address 172.16.24.4 tagged A1,A3-A4,A9,A11,A14 exit vlan 4 name "Guests_BYOD" ip address 192.168.24.1 255.255.255.0 ip helper-address 172.16.24.4 tagged A3-A4,A9,A11,A14 exit ip route 0.0.0.0 0.0.0.0 172.16.24.8 spanning-tree
FN-GM Posted February 12, 2013 Posted February 12, 2013 You will need an IP Helper Address just like the config above.
techie08 Posted February 12, 2013 Author Posted February 12, 2013 I have an ip helper address on my DHCP server on VLAN100 of the switch. Would the default gateway on the DHCP server need to that of the vlan 1 IP adresss where the DHCP server sits?
timbo343 Posted February 12, 2013 Posted February 12, 2013 My DHCP server settings are: IP: 172.16.24.4 Subnet: 255.255.248.0 D GW: 172.16.24.24 DNS1: 172.16.24.5 DNS2: 172.16.24.3
FN-GM Posted February 12, 2013 Posted February 12, 2013 Would the default gateway on the DHCP server need to that of the vlan 1 IP adresss where the DHCP server sits? This doesn't need changing. Please can you post your HP config up?
techie08 Posted February 12, 2013 Author Posted February 12, 2013 Running configuration: ; J8697A Configuration Editor; Created on release #K.15.07.0008 ; Ver #02:1b.2f:36 hostname "SVR-Servers1" module 1 type J8702A module 2 type J8705A module 3 type J8705A module 4 type J8702A module 6 type J8708A interface A1 no power-over-ethernet exit interface A2 no power-over-ethernet exit interface A3 no power-over-ethernet exit interface A4 no power-over-ethernet exit interface A5 no power-over-ethernet exit interface A6 no power-over-ethernet exit interface A7 no power-over-ethernet exit interface A8 no power-over-ethernet exit interface A9 no power-over-ethernet exit interface A10 no power-over-ethernet exit interface A11 no power-over-ethernet exit interface A12 no power-over-ethernet exit interface A13 no power-over-ethernet exit interface A14 no power-over-ethernet exit interface A15 no power-over-ethernet exit interface A16 no power-over-ethernet exit interface A17 no power-over-ethernet exit interface A18 no power-over-ethernet exit interface A19 no power-over-ethernet exit interface A20 no power-over-ethernet exit interface A21 no power-over-ethernet exit interface A22 no power-over-ethernet exit interface A23 no power-over-ethernet exit interface A24 no power-over-ethernet exit interface C1 no power-over-ethernet exit interface C2 no power-over-ethernet exit interface C3 no power-over-ethernet exit interface C4 no power-over-ethernet exit interface C5 no power-over-ethernet exit interface C6 no power-over-ethernet exit interface C7 no power-over-ethernet exit interface C8 no power-over-ethernet exit interface C9 no power-over-ethernet exit interface C10 no power-over-ethernet exit interface C11 no power-over-ethernet exit interface C12 no power-over-ethernet exit interface C13 no power-over-ethernet exit interface C14 no power-over-ethernet exit interface C15 no power-over-ethernet exit interface C16 no power-over-ethernet exit interface C17 no power-over-ethernet exit interface C18 no power-over-ethernet exit interface C19 no power-over-ethernet exit interface C20 no power-over-ethernet exit interface D1 no power-over-ethernet exit interface D2 no power-over-ethernet exit interface D3 no power-over-ethernet exit interface D4 no power-over-ethernet exit interface D5 no power-over-ethernet exit interface D6 no power-over-ethernet exit interface D7 no power-over-ethernet exit interface D8 no power-over-ethernet exit interface D9 no power-over-ethernet exit interface D10 no power-over-ethernet exit interface D11 no power-over-ethernet exit interface D12 no power-over-ethernet exit interface D13 no power-over-ethernet exit interface D14 no power-over-ethernet exit interface D15 no power-over-ethernet exit interface D16 no power-over-ethernet exit interface D17 no power-over-ethernet exit interface D18 no power-over-ethernet exit interface D19 no power-over-ethernet exit interface D20 no power-over-ethernet exit interface D21 no power-over-ethernet exit interface D22 no power-over-ethernet exit interface D23 no power-over-ethernet exit interface D24 no power-over-ethernet exit ip routing vlan 1 name "DEFAULT_VLAN" untagged A1-A8,A10-A24,B1-B24,C1-C24,D1-D24,F1-F4 ip address 10.43.113.73 255.255.248.0 no untagged A9 exit vlan 100 name "BYOD" untagged A9 ip helper-address 10.43.112.4 ip address 10.74.220.5 255.255.254.0 tagged B24,F1 exit power-over-ethernet pre-std-detect no ip ssh interface F1 flow-control exit snmp-server community "public" unrestricted snmp-server host 10.43.112.12 community "public" snmp-server host 10.43.115.40 community "public" snmp-server location "Server Room" password manager password operator
FN-GM Posted February 12, 2013 Posted February 12, 2013 (edited) What is the IP address of 10.43.112.4? I assume its not your DHCP server as it doesn't fall into the same range as the devices in VLAN 1. Does the DHCP server live in VLAN 1? Edited February 12, 2013 by FN-GM
techie08 Posted February 12, 2013 Author Posted February 12, 2013 What is the IP address of 10.43.112.4? I assume its not your DHCP server as it doesn't fall into the same range as the devices in VLAN 1. Does the DHCP live in VLAN 1? Its in the same subnet and its the dhcp server.
FN-GM Posted February 12, 2013 Posted February 12, 2013 (edited) So the DHCP is in vlan 1? The ip range configured for VLAN 1 is 10.43.113.73 - 10.43.113.78 I assume this is not what your using? For VLAN 1 what is the IP range do you use and what subnet mask? It looks like its not routing back to the DHCP because VLAN 1 is not configured correctly. Edited February 12, 2013 by FN-GM
techie08 Posted February 12, 2013 Author Posted February 12, 2013 The ip range for VLAN 1 is 10.43.112.1 - 119.254 SN - 255.255.248.0 The ip Range for VLAN 100 is 10.74.220.1 -221.254 SN - 255.255.254.0
FN-GM Posted February 12, 2013 Posted February 12, 2013 Is Subnet mask configured as 255.255.248.0 in DHCP for VLAN 1? For vlan 100 why did you pick that IP please? Usually people would pick something like 10.74.221.254 for that range.
techie08 Posted February 12, 2013 Author Posted February 12, 2013 Is Subnet mask configured as 255.255.248.0 in DHCP for VLAN 1? For vlan 100 why did you pick that IP please? Usually people would pick something like 10.74.221.254 for that range. I chose that just because it was the first one available in that range. 255.255.248 is also configured in DHCP for VLAN 1
FN-GM Posted February 12, 2013 Posted February 12, 2013 (edited) Urgh, right sorry i have been reading this wrong start again!! sorry I was reading it as 255.255.255.248 need to go to spec savers! I chose that just because it was the first one available in that range 10.74.220.1 is. not 10.74.220.5 Can you ping the DHCP ip (10.43.112.4) from VLAN 100? Edited February 12, 2013 by FN-GM
techie08 Posted February 12, 2013 Author Posted February 12, 2013 Urgh, right sorry i have been reading this wrong start again!! sorry I was reading it as 255.255.255.248 need to go to spec savers! 10.74.220.1 is. not 10.74.220.5 Can you ping the DHCP ip (10.43.112.4) from VLAN 100? I set a static IP and i can ping the ip address of VLAN 100 and VLAN 1 but not the DHCP server
timbo343 Posted February 12, 2013 Posted February 12, 2013 Hav eyou authorised the DHCP server? I know its a simple question, often overlooked
techie08 Posted February 12, 2013 Author Posted February 12, 2013 Hav eyou authorised the DHCP server? I know its a simple question, often overlooked yes i have as its handing out DHCPs from VLAN 1.
techie08 Posted February 12, 2013 Author Posted February 12, 2013 Interestingly is saying 2 addresses in use when i display statistics for the scope but no leases appear. Is it worth un-authorising and re-authorising DHCP?
timbo343 Posted February 12, 2013 Posted February 12, 2013 You have to authorise it per scope. It wont harm re-authorising.
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now