Recently I contracted with an ISP a two public and fixed Ips Conection.
(IP Numbers have been changed !)
It is an ADSL 512Kb 2Wire Modem-Router Conection!.
1.- My 2Wire Modem-Router Conf.
a.- Broadband : Ip address 126.96.36.199 ; Mask 255.255.255.240; Gateway 188.8.131.52
b.- Modem Router shows : Public Route Ip address 184.108.40.206; Mask 255.255.255.252
c.- Private Conf. Router address Ip 192.168.1.254; Mask 255.255.255.0; DHCP Intervals 220.127.116.11 to 192.168.1.253
2.- It also shows four active workstations:
a.- #1 = Ip address 18.104.22.168; fixed, DMZplus (Here I have my website!)
doing an ipconfig I get : Ip address 22.214.171.124; Mask 255.255.255.240; gateway 126.96.36.199
b.- #2 = Ip address 188.8.131.52; Public (Have my Testing site; No domain name, just Ip)
doing an ipconfig I get: Ip address 184.108.40.206; Mask 255.255.255.252; gateway 220.127.116.11
c.- #3 = Ip address 192.168.1.65; DHCP, Private
doing an ipconfig I get: Ip address 192.168.1.65; Mask 255.255.255.0; Gateway 192.168.1.254
d.- #4 = Ip address 192.168.1.69; DHCP, Private (Here i have my Switch)
Inside the switch : Ip address 192.168.1.69; Mask 255.255.255.0; Gateway 192.168.1.254
3.- I did a traceroute from
to my two public and fixed Ips:
a.- Traceroute to 18.104.22.168; Results > 18 hops; Reached Destination
b.- Traceroute to 22.214.171.124; Results > 18 hops; Reached destination; Hop 17 goes to Ip 126.96.36.199, Hop 18 goes to 188.8.131.52
Questions: Do I have two fixed and Public Ips totally Independent? Why the Traceroute to the second Ip had to pass through the first Ip?
What does that mean? Since I contracted a 512Kb broadband conection, Do I have 512Kb for each Ip or is it shared?
If it is shared how does it exactly work?; this last question relates to my idea that if an ip gets a conection that uses all the bandwidth, the
other ip will not be able to initiate a conection. Or the first ip will release some bandwidth and let the other ip use some bandwidth?
Any Thoughts will be appreciated!!!!.
I'm not exactly sure from your description how your ISP has set the 2Wire up, but it looks like you have one 'real' IP address assigned to the 2Wire itself and your second one is a virtual address presented by the NAT facilites within the unit. That would be why your traceroute for the second address passes through the first one.
As to your second question, your link capacity is 512k whatever you do with it. So if you hit both IPs with traffic you can have up to 512k in total shared between them; it isn't 512k for each IP address independantly
What confuses me is that:
despite all that, I run a testing site at the second
Ip without a domain name. http://184.108.40.206/...
I go to cybercafes for extra testing and everything
points to the idea of having two Ip address.
I run a tiny radio and from one computer to the
other, seems to work fine.
The other confusing thing is that both reach their
destination from outside starting from two different
ips 220.127.116.11 and 18.104.22.168.
P.S. At both computers I have Apache, Php and Mysql
installed and ready to accept conections on two diferent
You do have two IP addresses. One is the 'real' address of the WAN side of your 2-Wire box, while the other is being internally generated by the 2-Wire to support the LAN-side device that you have placed into DMZPlus mode. The 2-Wire can do this for several devices - I use one with five public IP addresses - but only if the addresses are allocated for your use by your ISP