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Daisy chained router question

W

Waterhazard

Weaksauce
Joined
Sep 23, 2005
Messages
96
I've got two routers (D-link DI-704P's), one daisy chained off the other. Everything connects fine, and all computers can see each other on the network, but only on their respective routers, not between the routers. Why is this? It seems the second (downline) router is assigning IPs to its connected computers as I can log into that router (of course only from computers directly connected to it) and assign static IPs etc... Clearly I'm not well versed in networking and would appreciate any assitance/explainations.
 
Waterhazard said:
I've got two routers (D-link DI-704P's), one daisy chained off the other. Everything connects fine, and all computers can see each other on the network, but only on their respective routers, not between the routers. Why is this? It seems the second (downline) router is assigning IPs to its connected computers as I can log into that router (of course only from computers directly connected to it) and assign static IPs etc... Clearly I'm not well versed in networking and would appreciate any assitance/explainations.
Click to expand...

Sounds like you've got DHCP active on both routers - not a good idea. What you probably wanted was to jsut use the extra switch ports - not have cascaded routers. Turn off DHCP in the 2nd router and connect one of its LAN ports to the LAN ports of the 1st router. (depending on the routers capabilities you may need a cross-over cable).
 
If you mean by "see" that they see each other in widnows workgroups, then this behavior is normal. You can connect by IP across the routers to windows shares by forwarding ports (I think it is 445) to a machine, but I am not usre if you can set it up so that they show up in workgroups. Is there a reason you need daisy chained routers? You could slave them together as lan switches (cable from a lan port on one to a lan port on the other), and turn off DHCP on one of them, and have only one with an occupied WAN port.
 
Party2go9820 said:
Sounds like you've got DHCP active on both routers - not a good idea. What you probably wanted was to jsut use the extra switch ports - not have cascaded routers. Turn off DHCP in the 2nd router and connect one of its LAN ports to the LAN ports of the 1st router. (depending on the routers capabilities you may need a cross-over cable).
Click to expand...

The problem with this is I dont have enough open LAN ports then, leaving my tivo without a connection. Why is having DHCP enabled on both a bad idea?
 
Then things wont interconnect.. Id say just get a switch also.

Running your connection to the second router's wan port will read it almost as its own subnet and connections wont go threw it to the other router.
 
Waterhazard said:
The problem with this is I dont have enough open LAN ports then, leaving my tivo without a connection. Why is having DHCP enabled on both a bad idea?
Click to expand...

The biggest thing you need to avoid is both routers assigning addresses from the same network because you could end up with IP address conflicts because both routers could assign the same address to two different devices.

You can have two DHCP servers on one network, but you need to make sure they are exclusive in scope. In your setup you definatly don't need multiple DHCP servers and its just adding unnessisary complexity.

I don't mean to tell you that its impossible to have multiple routers on one network either. You can, but it makes things much more complicated as you need to be very careful about default gateways and default routes.

To keep things the most simple and straight forward I would highly consider selling/trading your 2nd router for a larger switch so you can even have even more ports for future expansion.
 
What are the IP ranges for each router?

I'm guessing that they are using different ranges otherwise you would already be having IP addressing conflicts.

You have the WAN port from one router connected to the LAN ports of the other router, yes? So the one router is getting its IP address from the DHCP of the first router. I would bet that you don't have a routing protocol enabled, nor the gateway addresses setup correctly.

You can't just connect two routers together like you can two switches. There are a few more settings to play with.

Party2go's suggestion of replacing one router with a switch is your easiest solution.
 
Thanks for the suggestions. I guess I'll just try to find a switch. Ive prolly got one in the closet or attic.
Just one question though: Will it will be possible to log into the router from computers connected through the switch (not directly to the router), and assign static IPs to any device, including ones not connected directly to the router?
 
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