Router admin from inner LAN

Netgear / Cg814wg
September 15, 2009 at 23:40:48
Specs: Windows XP
I'm cross-posting from Whirlpool ( because I did not find the answer there.

I have two Netgear routers; call them A and B. Router A is connected to the Internet and has IP space 192.168.1.*. Router B is connected to a one of A's LAN ports, and governs IP address space 192.168.2.*.

When connected directly to A, my computer can access A's administration interface. When connected directly to B, my computer can reach A's administration interface, but is refused permission to change the configuration (it gets an HTTP 401 Unauthorized response.

Does anybody know why?

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September 16, 2009 at 05:16:30
Did you enable remote administration in the first router? The router probably considers it remote, since the connection is from a different IP address/subnet.

How do you know when a politician is lying? His mouth is moving.

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September 16, 2009 at 05:45:26
I'd agree with guapo. It may also consider it remote since you're not plugged directly into a LAN port on A either. Try enabling the remote access and report back to us here whether or not that worked.

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September 16, 2009 at 10:18:44
Would not that be enable remote administration on the 2ND router?

Reason you can't access router B is due to your access via its wan port. Only if remote access is set can you admin the router via the wan port.

This means you access router B via a 192.168.1.x ip not a x.x.2.x ip

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Related Solutions

September 16, 2009 at 14:35:17
He said that he wanted to access router A from a PC connected to router B.

How do you know when a politician is lying? His mouth is moving.

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September 16, 2009 at 15:13:29
Good catch. I missed that.

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September 16, 2009 at 15:53:24
Thanks so much for weighing in on this, guys.

I'm really perplexed now. It seems that I can administer only one Netgear router at a time.

I connected my computer directly to the outer router (router A) and enabled remote administration. I then moved my computer back to the inner router (router B). Hey presto! I can administer router A from within LAN B.

Fine. Now, I just want to check that I can still administer router B. I log out of the admin interface for router A, and attempt to access the admin interface for router B. It comes up with the welcome wizard, as if I had never used it before.

So then I log out of router B and attempt to again administer router A. Noooooo! it won't let me.

What on earth is going on? Could it be a cookie thing? I'm going to keep investigating this to see what other information I can gather. I'll check what cookies get saved.

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September 16, 2009 at 15:57:57
Oh, wait; I'm an idiot. I just realised that I disabled remote admin on router A during the session. Disregard the last part of my previous post.

Current status is this: enabling admin interface on router A makes it possible to administer router A from within LAN B.

Here's the thing, though. Remote administration puts my router's admin interface at the mercy of the nasty big ol' Internet thingy. Sure, I have a very good admin password, but I feel uneasy about having my bollocks swinging in the breeze like that.

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September 16, 2009 at 16:09:16
I found that the remote admin set-up on my inner router (B) allows the user to specify the IP address of one particular computer that may administer the router, excluding all others.

The remote admin set-up of my outer router (A) has an all-or-nothing approach. It won't let me specify a particular IP from which the administration can be done.

I might see if there's a firmware upgrade for router A.

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September 16, 2009 at 16:17:14
Nope: no firmware update, nor any way of performing a firmware upgrade. Maybe that's a restriction because of it's other role as a cable modem.

I conclude then that I can:
a) enable remote admin on router A, and trust in the strength of my administration password to protect me from malicious users on the Internet; or
b) swap my computer to LAN A whenever I need to administer router A.

Of the two options, I'm more inclined to do the second.

Am I reading this thing right?

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September 17, 2009 at 07:19:24
You want a strong password anyway, no matter if you swap it or not. Why? Because if the routers have wireless capability & someone connects from the street, it's worse than having remote admin enabled. They would be free to change the router settings. They would be able to view all shares if they aren't password protected, since they already have an IP address.

99% of people including admins, don't change the default password to the router. Shared drives are rarely password protected either.

How do you know when a politician is lying? His mouth is moving.

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