[CentOS] Attaching LinkSys WRT54GL to CentOS machine
Ljubomir Ljubojevic
office at plnet.rs
Sun Apr 24 23:34:24 UTC 2011
Anthony wrote:
> On 25/04/11 04:15, Timothy Murphy wrote:
>> Do you have a LinkSys router with an IP address other than 192.168.1.1 ,
>> or even better with an address other than 192.168.1.* ?
>> If you have, could you tell me _how_ you did it, please.
>> I don't really care _why_ you did it.
>>
>> The instructions on the router only explain
>> how to set it up (with address 192.168.1.1)
>> attached directly to an ADSL modem.
>> I could do that, but I don't want to ...
>>
>
> The reason you might want to stick with the 192.168.1.* IP address is
> because when you have a need to reset to factory defaults, you'll find
> it takes some extra steps to reconnect to it (can be done by adding a
> slave IP address to the NIC attached to your AP; ip addr add
> 192.168.1.x/24 dev ethx) to reconfigure. In my case, I simply changed
> my internal network to suit the Linksys and never looked back.
>
> I have my set up as follows:
>
> (Pardon my ASCII art if it fails to render properly once I hit send)
>
> ------------ ----------------- ---------------- -----------------
> | Internet |----| 5-port switch |----| CentOS 5 Box |----| 8-port switch |
> ------------ ----------------- ---------------- -----------------
> |
> V
> <<<----------------------------------------------------<<<
> |
> V ----------------
> >>>--|Linksys WRT54G|
> ----------------
>
> My internal devices (192.168.1.x/24) are attached to the 8-port switch.
> I use only 2-ports on the 5 port switch to connect the ADSL modem to the
> server. All DHCP, DNS, Firewalling, is done on the CentOS box. I know
> most will cringe on the next few words, but I happen to like the way it
> is setup. On the ADSL modem, I've set the CentOS box as the DMZ so that
> I can control all Nating on the server. It has not failed me for the
> last 6 years I've been doing this. The key is to have a deny,allow
> firewall policy - meaning the policy on all chains is DROP, then I
> puunch the holes I need.
>
> Hopefully not too much verbiage.
>
> Cheers,
> Ak.
His ADSL modem is already on 192.168.1.x subnet, so CentOS WAN NIC
already uses it. And I do not expect resetting router to defaults every
week. Maybe never.
Ljubomir
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