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Professional Discussions => Routing and Switching => Topic started by: onebigfish on January 26, 2022, 02:09:33 PM

Title: Trying to join two networks, unsuccesfully
Post by: onebigfish on January 26, 2022, 02:09:33 PM
I am having trouble setting up a second router to join two networks together. The main reason I am doing this is that we are running out of IP addresses.

The diagram below is a basic overview of what we have.

(https://i53.servimg.com/u/f53/15/57/16/61/networ10.jpg)

This is what I need:

These are a few issues I am having:

I have looked and ready many pages and tried several things but I cannot get it to work properly. I would really appreciate some help. I do well at basic networking but this one has me frustrated.  :-[

OBF
Title: Re: Trying to join two networks, unsuccesfully
Post by: Otanx on January 26, 2022, 02:29:28 PM
Do you have a diagram of how it is all connected? Models of the routers? Could be a lot of reasons it isn't working.

-Otanx
Title: Re: Trying to join two networks, unsuccesfully
Post by: onebigfish on January 26, 2022, 02:58:15 PM
Thank you for responding.

I updated the diagram and added a few points below that hopefully explain more.

(https://i53.servimg.com/u/f53/15/57/16/61/captur10.jpg)


OBF
Title: Re: Trying to join two networks, unsuccesfully
Post by: deanwebb on January 26, 2022, 06:06:15 PM
I see an issue... two different DHCP servers means whoever assigns the address first, wins. What's the switch vendor/model? It should be able to support more than one VLAN (one each for your networks) and then be able to specify the DHCP server for that VLAN.

For wifi dropping, that may have more to do with physical access to the WLAN access point: do you have more than one in the office? Is the office too large for just one access point?
Title: Re: Trying to join two networks, unsuccesfully
Post by: icecream-guy on January 27, 2022, 08:03:13 AM
put a transit link between the two network routers like 192.168.3.0/29

Router A 192.168.3.1
Router B 192.168.3.2

put a route on router A to 192.168.0.0/24  next hop ip 192.168.3.2
put a route on router B to 192.168.1.0/24  next hop ip 192.168.3.1
put a default route 0.0.0.0/0 on router B next hop ip 192.168.3.1 for internet
Title: Re: Trying to join two networks, unsuccesfully
Post by: onebigfish on January 27, 2022, 08:49:56 AM
Quote from: deanwebb on January 26, 2022, 06:06:15 PM
I see an issue... two different DHCP servers means whoever assigns the address first, wins. What's the switch vendor/model? It should be able to support more than one VLAN (one each for your networks) and then be able to specify the DHCP server for that VLAN.

There are five switches:
Title: Re: Trying to join two networks, unsuccesfully
Post by: onebigfish on January 27, 2022, 09:25:09 AM
Quote from: icecream-guy on January 27, 2022, 08:03:13 AM
put a transit link between the two network routers like 192.168.3.0/29

Router A 192.168.3.1
Router B 192.168.3.2

put a route on router A to 192.168.0.0/24  next hop ip 192.168.3.2
put a route on router B to 192.168.1.0/24  next hop ip 192.168.3.1
put a default route 0.0.0.0/0 on router B next hop ip 192.168.3.1 for internet

I know what a route is, but what is a transit link?
Title: Re: Trying to join two networks, unsuccesfully
Post by: deanwebb on January 27, 2022, 12:51:40 PM
I'll leave the transit link discussion to icecream-guy.

For the switches, can they support VLAN creations? If yes, then you should specify the DHCP server that handles clients on the switch. Use only one, not both.
Title: Re: Trying to join two networks, unsuccesfully
Post by: icecream-guy on January 27, 2022, 02:54:48 PM
Quote from: onebigfish on January 27, 2022, 09:25:09 AM
Quote from: icecream-guy on January 27, 2022, 08:03:13 AM
put a transit link between the two network routers like 192.168.3.0/29

Router A 192.168.3.1
Router B 192.168.3.2

put a route on router A to 192.168.0.0/24  next hop ip 192.168.3.2
put a route on router B to 192.168.1.0/24  next hop ip 192.168.3.1
put a default route 0.0.0.0/0 on router B next hop ip 192.168.3.1 for internet

I know what a route is, but what is a transit link?

A transit network (link) is a network that bridges a connection between two other networks

sometimes with these consumer grade routers, they get confused with routing multiple networks, AKA can't handle DMZ networks. or WAN port on one router is connected to LAN port on another router.


the RT-AX58U looks like you can assign a IP address to the LAN ports & route

To configure the LAN Routing table:
1. From the navigation panel, go to Advanced Settings > LAN >
Route tab.
2. On the Enable static routes field, choose Yes.
3. On the Static Route List, enter the network information of
other access points or nodes. Click the Add or Delete
button to add or remove a device on the list.
4. Click Apply.


on the AC-2600* 
configure static IP address for the WAN port.
configure a default route

*(manual was not very helpful)