hmmm... first, Thank You Again! for your feedback! You have no idea how much I appreciate your time!
I thought wanderer said:
Sounds more like his "AP" is a wifi router not that makes any difference to your setup except others will be able to connect thru him to use your internet service.
If this is the situation <b>his network is protected from you but your network is not protected from him.</b>
The answer to the above is Yes, his "AP" is a wifi router. I'm not worried about others connecting thru him but appreciated the reminder that would be possible.
Your comments made me think that if that works for his side, why can't it work for my side? Why can't I also cascade my current perfectly fine router from the new one I just ordered? Originally I ordered the new router because of the guest network capability ... my current router does not have that capability and can't support it ... it's 3-4? yrs old... too old...
The article I found said:
ii. LAN to WAN – Connecting one of the Ethernet ports (LAN ports) of the main router to the Internet port (WAN port) of the secondary router.
This type of cascading requires the main router and the secondary router to have different IP segments. This connection makes it easier to identify which router the computers and other devices in the network are connected to since they will have different LAN IP segments. <b>However, computers that are connected to the main router will not be able to communicate with the secondary router, and vice versa since there are two (2) different networks.</b>
With this method, with two cascades, I believe he'll get what he wants (which is to keep his own local network setup) and we'll both be protected from each other - right? Isn't this the example Wanderer describes for the small business setup except that instead of the guest, he'll also use a cascade, which may be lan-lan or lan-wan,? I don't really care whether we plug into an ethernet port on his AP or the internet port (former is lan-lan and latter is lan-wan) - I'm going to be lan-wan so I'll be isolated... right?
I know we originally talked about using the guest network (which I didn't know was a possibility until this conversation, thank you again), but this method does not involve using the guest network ... that won't do what he wants... he wants to be able to keep his old network and not have to set up his equipment again although I'm curious if he has cascaded his router before. If not, he may have to change some of the settings in it like the ip and the dhcp. This is assuming I can get my cascade to work LOL - but those instructions look pretty straightforward... I'll be using all cisco equip and some phone tech support comes with the new router. I haven't called Cisco in a long time. Hopefully they're support is still decent.
What do you think? I'm trying to do a selective 20-year fast forward here knowledge-wise in an area that I was never great at back then to start with.
The vlan idea is a good one but my old router wouldn't support that either.