DHCP Problems

cheechm

cheechm

cheechm

Associate
Joined
16 Jan 2008
Posts
2,350
Having problems with DHCP, wireless routers and my PoE switch.

The switch is a cheap Netgear FS108P which is unmananaged.

The DHCP server, and router, is a Vigor 2920.

The wireless routers are Cisco WAP4410N (got a pair of them running).

Connected as follows:

INTERNET ---> Modem ---> Router ---> Switch ---> WAP

All cabling is Cat6, fully tested, terminated and working.

So the question: Clients computers/phones/PlayStations have trouble connecting to the wireless router. The connection is successful in terms of security, signal etc, however the clients aren't assigned IP addresses, which is quite odd. The WAPs are auto-assigned IP addresses by the router, and within their settings, their default gateway is the router. Cannot seem to work out why the wireless clients aren't assigned IPs. I've had to manually assign them.

The switch isn't on a different subnet is it?

Router is running on 192.168.1.0/24

Any ideas?

Thanks
 
cheechm said:
Having problems with DHCP, wireless routers and my PoE switch.

The switch is a cheap Netgear FS108P which is unmananaged.

The DHCP server, and router, is a Vigor 2920.

The wireless routers are Cisco WAP4410N (got a pair of them running).

Connected as follows:

INTERNET ---> Modem ---> Router ---> Switch ---> WAP

All cabling is Cat6, fully tested, terminated and working.

So the question: Clients computers/phones/PlayStations have trouble connecting to the wireless router. The connection is successful in terms of security, signal etc, however the clients aren't assigned IP addresses, which is quite odd. The WAPs are auto-assigned IP addresses by the router, and within their settings, their default gateway is the router. Cannot seem to work out why the wireless clients aren't assigned IPs. I've had to manually assign them.

The switch isn't on a different subnet is it?

Router is running on 192.168.1.0/24

Any ideas?

Thanks
Click to expand...


Those APs support VLANs. So it's worth checking that the SSID configured on them maps to the VLAN that is untagged on the LAN port you're using to connect to the DHCP source.
Usually APs that support multiple SSIDs and VLANs have to be told which VLAN to dump the wireless traffic to, they're not always smart enough to see only one VLAN and SSID are configured and thus the two should be linked.
 
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