Newbie questions, access problems

[Christian Marx]

Hi,

i?ve got some newbie questions.
I try to create an access point on a RedHat Linux 7.3 maschine.
These are the specs:

AMD K6 II/300
NetGear MA311 wireless PCI adapter
Intel EthernetPro 100 wired PCI adapter
RedHat Linux 7.3
Kernel 2.4.18-27.7.x

I've no problems to compile and activate the drivers and the daemon.
My problems began when i try to access my WLAN.

I can see the WLAN.
I can access the WLAN.

But i?ve no chance to get an IP adress from the DHCP Server.
Also i?ve got no chance to "ping" some machines in my wired network, 
even when i configure a fixed IP Adress on my wireless client.

My network looks like this:

IP address eth0 192.168.15.250/255.255.255.240
IP address eth0:0 192.168.15.251/255.255.255.240
IP address eth0:1 192.168.15.252/255.255.255.240
IP address eth1 192.168.15.253/255.255.255.240
IP address wlan0 192.168.5.254/255.255.255.248

Default gateway 192.168.15.254
No iptables rulebase.

The DHCP Server looks on the interface wlan0.

And here are my questions:
Do i need another network configuration ?
Do i need the bridging functionality ?

Thank you for every informations !

Christian