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SpeedCrazy

Hidden Network Switch Problem

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I can see but not access my network switch.

 

Setup:

Computer -> Switch -> Gateway Router

 

I setup my network a few years ago. At that time i could access the switch by navigating to it via 192.168.1.10, and the router by 192.168.0.1. Then last year my ISP replaced my gateway with one of their own, an Arris something or other, that they locked me out of. Now i have to call them whenever i want a port forwarded and explain why, such bs.

 

Problem:

I just recently started using the wireless functionality of my switch(yes i'm a little behind the times in that respect) and as such wanted to see if there were any settings i could tweak. So i direct my browser to 192.168.1.10 and it times out. I ping it and it times out. I tracert it, and it times out.

At this point i downloaded SoftPerfect Network scanner, it can see all the devices on my network and registered something with the ip address 192.168.1.10, but couldn't tell me anything else about it. So i found a mac address scanner which not only said there was a device there but also confirmed it was a Cisco-Linksys device. But i still can't access it.

Do any of y'all network wizards have any ideas on what i could try?

 

Thanks,

Speed 

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Your switch has wireless? ......Post your network config and a diagram if possible. If the router is on network 192.168.0.0/24 and the switch is on 192.168.1.0/24 then what network are the workstations on? Remember if you have devices in separate subnets then they would require a layer 3 device (router) to route traffic between them.

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Here is the layout.

post-72422-0-24834900-1391655320_thumb.png

 

The gateway is and Arris something or other provided by the ISP.

The gateway has four port in the back of it, two of those ports go directly to computers.

The third port in use has a CAT5 cable that runs to the opposite end of the building where i have a Cisco-Linkseys WRT54GL router configured as a switch. I think the option was labeled passthrough or something. Anyway it serves connection both wirelessly and hardwired to a number of computers.

I'm afraid you lost me with the subnet thing, all i know is that it works, but i can't access the cisco-linkseys router to change its settings.

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Okies, from your diagram, you have actually 2 different networks, one with 2 computers and the other 3 computers connected to the switch. you should be able to access the switch from one of the computers that's connected to it. But the other 2 that are connected directly to the gateway can/won't see/connect to the switch.. This is because the switch forms a separate network off the gateway.

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Okies, from your diagram, you have actually 2 different networks, one with 2 computers and the other 3 computers connected to the switch. you should be able to access the switch from one of the computers that's connected to it. But the other 2 that are connected directly to the gateway can/won't see/connect to the switch.. This is because the switch forms a separate network off the gateway.

That makes sense, however the computer i am using to try and access the switch is directly attached to it.

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What IP addresses do the computers directly connected to the switch receive from DHCP or have statically assigned?

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Ok so if everything gets a 192.168.0.x address dynamically how did the switch end up with a 192.168.1.x address? You have a device on one network (192.168.1.0/24) that has no way to communicate with another network (192.168.0.0/24). The "gateway" device would have to have a route setup so that the traffic from the two networks can communicate. If you were to plug a laptop into the switch with the 192.168.1.0/24 network already manually configured on it I bet you would be able to access and manage the switch from it. As it stands you basically have an invalid network configuration.

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Ok so if everything gets a 192.168.0.x address dynamically how did the switch end up with a 192.168.1.x address? You have a device on one network (192.168.1.0/24) that has no way to communicate with another network (192.168.0.0/24). The "gateway" device would have to have a route setup so that the traffic from the two networks can communicate. If you were to plug a laptop into the switch with the 192.168.1.0/24 network already manually configured on it I bet you would be able to access and manage the switch from it. As it stands you basically have an invalid network configuration.

Okay, that makes sense. 

I really have no clue how it ended up with that IP, as i said as far as i know the gateway serves as a DHCP server as well. So all that said, if it is on a different subnetwork, how does it manage to serve connection to the computers attached to it?

Thanks for your help Nerm, i will try your suggestion when i get home.

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Ok so if everything gets a 192.168.0.x address dynamically how did the switch end up with a 192.168.1.x address? You have a device on one network (192.168.1.0/24) that has no way to communicate with another network (192.168.0.0/24). The "gateway" device would have to have a route setup so that the traffic from the two networks can communicate. If you were to plug a laptop into the switch with the 192.168.1.0/24 network already manually configured on it I bet you would be able to access and manage the switch from it. As it stands you basically have an invalid network configuration.

Okay, that makes sense. 

I really have no clue how it ended up with that IP, as i said as far as i know the gateway serves as a DHCP server as well. So all that said, if it is on a different subnetwork, how does it manage to serve connection to the computers attached to it?

Thanks for your help Nerm, i will try your suggestion when i get home.

 

Because it is acting as a switch it is still passing layer 2 traffic so it is essentially being a bridge for the 192.168.0.0/24 network.

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Ok so if everything gets a 192.168.0.x address dynamically how did the switch end up with a 192.168.1.x address? You have a device on one network (192.168.1.0/24) that has no way to communicate with another network (192.168.0.0/24). The "gateway" device would have to have a route setup so that the traffic from the two networks can communicate. If you were to plug a laptop into the switch with the 192.168.1.0/24 network already manually configured on it I bet you would be able to access and manage the switch from it. As it stands you basically have an invalid network configuration.

Okay, that makes sense. 

I really have no clue how it ended up with that IP, as i said as far as i know the gateway serves as a DHCP server as well. So all that said, if it is on a different subnetwork, how does it manage to serve connection to the computers attached to it?

Thanks for your help Nerm, i will try your suggestion when i get home.

 

Because it is acting as a switch it is still passing layer 2 traffic so it is essentially being a bridge for the 192.168.0.0/24 network.

 

Ok, that makes sense. I should be able to test the 192.168.1.x connection here in a little bit.

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Well i unplugged everything but my laptop and set the laptop's ip to 192.168.1.5

I still can't connect to the router, but i had a thought: if its on a different subnetwork, do i need a different subnet mask? Its currently on the default 255.255.255.0, but that's what it was on before i switched from 192.168.0.x to 192.168.1.x

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