11-06-2009 01:26:19 PM
To configure the public IP for the server I did the following.
1. Enabled the "Public Routed Subinterface"
2. Gave it the first of my 5 static ip addresses x.x.x.24
3. The subnet att gave me 255.255.255.248 is not a valid subnet for this IP so I used 255.255.0.0 and the router took that just fine.
4. I went to the address allocation table and found the server NIC that I want to use for my external connection. I then disabled the firewall on this connection and told it to use a public IP, from the dropdown I then selected the next IP in the range ATT had provided x.x.x.25
5. The router then stated to renew DHCP which I did and now the server's external nic gets the ip of x.x.x.25.
I cannot ping this nic in the server from an outside connection. Could ATT have given me incorrect information in terms of my static IP bank? Or did I configure something wrong in setting up the public IP? Any ideas?
11-06-2009 02:09:58 PM
Your configuration is not correct.
Your static IP range is x.x.x.24/29 (CIDR notation) or x.x.x.24 with a subnet mask of 255.255.255.248 (using subnet mask notation). The subnet you have been assigned contains 8 raw IP addresses, but as with any subnet range, the first address is reserved for the network, the last address is reserved for broadcast, and then one address must be assigned to your router. This leaves 5 static IPs for hosts.
x.x.x.24 - Reserved for network
x.x.x.31 - Reserved for broadcast
x.x.x.25 - Assign to router
x.x.x.26-30 - 5 static IPs for hosts.
You should set this up as follows:
Public routed subinterface in the router should be x.x.x.25 with a subnet mask of 255.255.255.248.
Your server should be assigned x.x.x.26 by using the router's Address Allocation table..
Now renew DHCP on the server.
Now the server should be pingable from outside using x.x.x.26.
11-06-2009 02:36:19 PM
Im going to try to set the public routed as the x.x.x.25 and the subnet and ill move the server up and well see what happens. I wont know until tommrow when im back at the server!