[Server-devel] Access Point configuration

Joshua N Pritikin jpritikin at pobox.com
Thu Jul 23 06:14:18 EDT 2009


I had my first experience of bricking a wireless router today. 
Fortunately, I had a backup router on hand.

The steps listed in "AP Configuration" seem incomplete.

Today I flashed my secondary WRT54GL with DD-WRT and loaded factory 
defaults.

"Make sure that the access point is NOT running as a DHCP server and 
it's not running NAT"

1. DD-WRT does not have NAT enabled. That's easy.

2. To not run a DHCP Server means that I should turn off DHCP 
completely? I only see options for DHCP Server and DHCP Forwarding. I 
assume I want DHCP Forwarding? Should I turn off DNSMasq?

Also, would be wrong to turn off DHCP for the WAN link? (I think that's 
how I bricked my router.)

The XS wants to issue DHCP assignments through the router, right? Do I 
need to change the router operating mode from Gateway to Router (DD-WRT 
Advanced Routing / Operating Mode)?

Currently, my router gets assigned WAN IP 172.18.96.24, which looks 
correct. However, the schoolserver log shows:

DHCPDISCOVER from 00:1e:c9:04:9a:b0 via 192.168.1.1: unknown network 
segment

00:1e:c9:04:9a:b0 is my laptop's Ethernet MAC address. I get an 
analogous result if I try to connect via wireless. I presume the 
schoolserver is expecting DHCPDISCOVER via the router's WAN IP? How can 
I accomplish this? The Linksys routing table is:

192.168.1.0	255.255.255.0	0.0.0.0	LAN & WLAN
172.18.96.0	255.255.224.0	0.0.0.0	WAN
169.254.0.0	255.255.0.0	0.0.0.0	LAN & WLAN
0.0.0.0	        0.0.0.0	        172.18.96.1	WAN

Do I want to statically assign the router to 172.18.96.24? (Probably 
not.)

Suggestions welcome. Thanks for your help.

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