I have a Linux Server I have built with Centos 5.2 to be my localized file server. It will eventually be setup to share a volume accessed from my LAN from both PC’s and MACs through a samba share. I need to be able to SSH into it from outside and I have that configured on the box and it is working in certain situations I already know since I’m behind a PIX 501 I will have to setup natting to redirect the outside address to the inside address with the specific ports for which I need to access these services depending on where I’m going with it. Since I’m going to be using dyndns.org on my router, those requests will be routed in to the 192.168.8.1 only, while anything dealing with ports 22, 23, 21, and others on the Linux box, I want only to go to that box 192.168.8.100 for higher security.
My cable modem comes into the pix and it goes from the pix to my Linksys wireless router. all of my pc’s are wireless with the exception of my Linux box which plugs into the wireless router (Linksys WRT54GL) ok so I want to give my Linux box a 192.168.8.100(static) my wireless stuff is on DHCP leases from 192.168.2 – 11 with 192.168.8.1 being the address of the wireless router or the Default Gateway. I had originally setup the Linux to 192.168.8.100 with a class c subnet mask and 192.168.8.1 being the gateway however with the wireless being leased and the Linux box static they would not talk over SSH, I could not ping from either Linux to pc or from my pc to the Linux and I could not pull up Google. If I set Linux to DHCP it pulled 192.168.8.6 and everything worked fine, even if I set it statically to 192.168.8.6 which is within the lease range.
Just today I was thinking that maybe the default SPI firewall on the Linksys was blocking it. It is on and I have these options set: block anonymous internet requests, filter multicast, and filter IDENT (port 113); I have Filter Internet NAT redirection off. I have not tried turning off the firewall as of yet can someone advise me to whether this is the cause of my issues? I am behind a PIX in default state as of right now which I have not configured yet. So turning it off probably wouldn’t be a big deal
dr ice it is already on the same subnet.
the subnet is 192.168.8.X
the leases are .2-11 and the Linux box is .100
and Loggsie I dont believe i have all those options maybe i do but im going to try disabling the Router firewall first since im behind a PIX 501 if that doesnt solve it I may just setup DHCP on the Linux server and disable it on the Router that way i can assign what Ip i want to what via MAC address if i always want it to stay the same.
