Sending DHCP request across diffrent vlans

https://m.youtube.com/watch?v=krE16IRIHw4
Watch this video for switch port access . You will need to be in global config interface mode.

Huawei S2300/3300/5300 series switch although no H3C switches am user-bind command, but through the DHCP Snooping function can also be realized IP+MAC+ port binding to prevent users set up a static IP address. For example, if the request port Ethernet0/0/1 in addition to the static IP address for the 1.1.1.2, MAC address for the 001c-2309-9aa7 corresponding to the user, all other static IP users can not access the internet. Configuration is as follows:
Configure the device DHCP Snooping
# enable the global DHCP Snooping function.
[Quidway] DHCP snooping enable
# configure user side interface of VLAN.
[Quidway] VLAN 100
[Quidway-vlan100] quit
[Quidway] interface Ethernet 0/0/1
[Quidway-Ethernet0/0/1] port default VLAN 100
[Quidway-Ethernet0/0/1] quit
# enable VLAN DHCP Snooping function.
[Quidway] VLAN 100
[Quidway-vlan100] DHCP snooping enable
# configuration interface for packet inspection at the user side
[Quidway] interface Ethernet 0/0/1
[Quidway-Ethernet0/0/1] DHCP snooping check ARP enable
[Quidway-Ethernet0/0/1] DHCP snooping check IP enable
[Quidway-Ethernet0/0/1] quit
# configuration static binding table entry
[Quidway] VLAN 100
[Quidway-vlan100] DHCP snooping bind-table static IP-address 1.1.1.2 mac-address 001c-2309-9aa7 interface Ethernet 0/0/1

Hi

This happens when you IP phone communicated with the Voice vlan with the IP address of data vlan.

To solve it manually enter the IP address of the TFTP server and option 150 on the DHCP server.
remove the voice vlan from the switch port and reboot the phone
again add the voice vlan and reload the phones

This switch will not function as a DHCP server itself. You will need to have a DHCP server on the VLAN with the access points to give out IP's to the wireless users.
HP has free design and configuration services http://www.procurve.com/customercare/services/design-center/index.htm

Here's what you need to do:

First, be sure to assign an ip address(in the proper subnet) to each VLAN.

Second, use the ip helper-address command in the context of each VLAN, the address used should be the address of the DHCP server

Third, Add a scope for each additional VLAN on the DHCP server.

The switch will route the DHCP request to the proper server based on the ip helper-address command parameter and based on the ip address of the VLAN that is passed tot he server, a DHCP address in the proper subnet is automatically configured.

Here is a sample:

ProCurve Switch 3500yl-24G-PWR# configure
ProCurve Switch 3500yl-24G-PWR(config)# vlan 33
ProCurve Switch 3500yl-24G-PWR (vlan-33)#ip address 192.168.33.254/24
ProCurve Switch 3500yl-24G-PWR (vlan-33)# ip helper-address 10.1.2.250

can you clarify the switch configuration, by default it will have all ports as untagged in the default vlan 1 with a bootp/dhcp address, I assume you will need to perform some kind of routing ie; default gateway, ip-helper address or static route to point to your routing device ADSL router etc try the following;

1~ configure an ip helper address on vlan 1 to point to what ever is supplying dhcp

2~ create a defualt route on the switch ie; 0.0.0.0 0.0.0.0 to next hop / routing device

3~ configure a default gateway ie; ip default-gateway x.x.x.x where x= routing device

the above can be accomplished via a serial connection to the switch using hyperterminal with the following settings

bits per second 9600
data bits 8
parity none
stop bits 1
flow control none

let me know if this resolves the issue

tell each vlan about DHCP server using

ip helper <DHCP servers ip adddress>.

in config mode.

i can't set ip address over 4 vlans. the 3com switch 4500 always give error message "there's not enough routing resources available".please help....