Re: subnet routing problem

[Ronnie Pettersson <ronnie68 yahoo com>]

The only DHCP server is the Linksys router/firewall, which has a built
in switch with ethernet and wifi interfaces. 

It's really not that convoluted. I have two subnets with one
firewall/router(linksys) to the Internet... If it would make any
difference, I could disable the DHCP on the laptop and provide only
static addresses.  

My girlfriend won't let me have the server/router in the bedroom where
the linksys router is, so I am pretty much stuck right now...

Ronnie


--- Vidiot <brown mrvideo vidiot com> wrote:
> >I have a strange (to me) problem with my home network consisting of
> a
> >Linksys DSL router, a Linux server/router and two Linux end points
> (one
> >laptop and an embedded linux device). My current topology is:
> >
> >Internet/DSL modem
> >|
> >Linksys 
> >(192.168.1.1 w/ static route to 192.168.0.0/24 via 192.168.1.17)
> >|
> >wifi--(192.168.1.101 DHCP) Redhat 9 Laptop
> >|
> >(192.168.1.17/24 default gw 192.168.1.1)
> >Redhat 7.2 Linux Server/Router (kernel 2.4.21)
> >(192.168.0.1/24 )
> >|
> >Ethernet
> >|
> >(192.168.0.90/24 gw 192.168.0.1)
> >embedded linux (kernel 2.4.19)
> >
> >
> >The laptop and the embedded device can ping the internet and resolve
> >addresses.
> >
> >ifconfig shows all interfaces are up and with ip-addresses and
> >netmasks, etc.
> >
> >The router/servers ip_tables is flushed with ACCEPT policies.
> >
> >The router/server  /proc/sys/net/ipv4/ip_forward is 1.
> >
> >I can not make the server/router route traffic between the laptop
> and
> >the embedded device. I know that it's not the optimal topology but
> at
> >this point it's the possible way. Optimally I want to have the
> >server/router on a Linksys ethernet port rather than on the wifi
> side. 
> >
> >I've been trying all kinds of configurations for the routing tables
> >(using route and/or iproute2) but nothing seems to work. Am I
> missing
> >something fundamental here?
> >Ronnie Pettersson
> 
> What a convoluted mess.  Personally I don't think you are ever going
> to get
> that topology to work.
> 
> You don't supply what the internet address is, i.e., static or DHCP. 
> Is the
> Linksys doing the DHCP/Static to the internet and supplying an
> internal static
> (which it what it appears to be doing).  Is the Linksys your firewall
> as well?
> 
> If your Linksys is your firewall to the internet, then your
> connection is
> simple... all devices inside the firewall need to directly connect to
> the
> Linksys:
> 
>                                    Internet
>                                        |
>                                        |
>                                     Linksys
>                                        |
>                                        |
>          
> --------------------------------------------------------------
>           |                            |                             
>  |
>         wifi                      Linux Server                      
> Linux
>           |
>        laptop
> 
> 
> If the Linksys doesn't have multiple outputs, then a multiport switch
> can be
> added between the Linksys and your internal machines.  This way all
> of your
> boxes can be in the same IP range and the server doesn't need a
> second
> ethernet card and try to act as a router in a configuration that
> won't work.
> 
> MB
> -- 
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> 
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