Hi mike.. here's my system: internet dsl box V V dlink router (192.168.1.100) V V switch ->>>>>>>>>>>>>>+ ^ V ^ V ^ V box1 wireless access point (192.168.1.200) (eth0) | |(ath0) box2 |(eth0) | box3 (future) (192.168.2.13) so: router - 192.168.1.100 (gateway) wireless access point - 192.168.1.200 box1 (eth0) 192.168.1.3 box2 ath0 - 102.168.1.5 eth0 - 102.168.2.5 box3 eth0 - 102.168.2.6 box1 connects to the switch, which is connected to the access point via the lan (eth) connection. so, everything is on the 192.168.1 subnet, except the eth0 nic of box2, and the box3 that'll be added to interface with box2/eth0... box2 has ip_forwarding set. so my basic questions: -what do i need to do on box2 to allow a user to be able to do a "ping 192.168.2.5" -what do i need to do on box2 to allow a user on box1 to be able to "ping 192.168.2.5" and have a successful reply. bear with me !! thanks -----Original Message----- From: fedora-list-bounces@xxxxxxxxxx [mailto:fedora-list-bounces@xxxxxxxxxx]On Behalf Of Mike Wright Sent: Monday, November 26, 2007 2:22 PM To: For users of Fedora Subject: Re: ip masquerading/subnets bruce wrote: > Hi Mike.. > > and adding this route to the box2, will allow me to ping box2/eth0 from > box1? > > or are you saying that i'd have to add the route to box1. if i have to add a > route to box1, then i'd have to add a route to every box in the system... > which isn't what i'd want to do. > > again.. thanks for the basic understanding.. I'm not so sure I have that basic understanding ;) Blaaargh! The command I gave you was a linux command that can't be executed on the windows box, ergo: bad advice. You mentioned two boxes with one to come, then you mentioned that there is also another router (to the internet? connected to box1?). If so, then is this what you have? internet (router's default gateway) | router wan xxx.xxx.xxx.xxx (your outside IP) router lan yyy.yyy.yyy.??? (box1's default gateway) | box1's eth? yyy.yyy.yyy.??? (box1's other IP) box1's eth0 192.168.1.3 (box2's default gateway) | box2's ath0 192.168.1.5 (box1's route to box2 and beyond) box2's eth0 192.168.2.5 (box3's default gateway) | box3 eth0 192.168.2.???/24 Note that each box further from the internet has a default route that points to the network device of the next closer box. Now, in order to have box1 be able to access box2 and further box1 will have to have a route added to its routing table that points to box2. This is where I gave the wrong command. You'd have to use whatever is the appropriate windows command to add an additional route (ipconfig???). The only other consideration (ignoring iptables) is that box2 must have forwarding enabled or it will not pass traffic between its two interfaces: /etc/sysctl.conf -> net.ipv4.ip_forward = 1 Hope that is a little clearer. :m) -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list