IP Addressing ---------- ASAP

panlamture · ‎05-23-2005

Hi All,

Lan A|Router A|--Internet--|Router B|Lan B

Above is my network Diagram, and ip addressing for the dia is as, Note that this is DSL connection i am getting the Wan ip address from ISP.

Router A Ethernet : 200.200.1.0/29

Router B Ethernet : 200.200.2.0/24 (Whole Class C)

Now my 4 server having ip's at router b side.

i.e

Server 1 : 200.200.2.4

Server 2 : 200.200.2.6

Server 3 : 200.200.2.8

Server 4 : 200.200.2.10

Question : Now i am shiftting my above 4 server from router b side to router A side, and do not want to be change the ip's of server.

Is it possible that should i use first 16 ip address from 200.200.2.0/24 on router A side and remaining ip from 17 to 255 to be use on router B side, so my server will not get change ip.

If Yes,

Pls let me know the Ip address subnetting for both the location .

like what will be the network id broadcast id for both network and subnetmask.

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remember that

1. i do not want to change the ip address of server.

2. Useing the ip address above 200.200.2.0/24, how can i use at bothside.

3. I wanted first 16 ip's to be configured on Router A side only not more then 16 IP's.

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peterledwidge · ‎05-23-2005

You will need to subnet into a /28 range = 14 hosts per subnet.

Cisco have a tool for this (CCO Access required)

http://www.cisco.com/cgi-bin/Support/IpSubnet/home.pl

HTH

anand · ‎05-24-2005

Hi,

i don't think so that you can't use the "B" WAN IP address on "A" side, because your ISP would have routed the public IP of 200.200.2.0/24 only to the "B" side. if it is possible to hav 200.200.2.0/24 to be used on the "A" side,in that case even if some one comes to know about your WAN IP address, he can use it else where across the world, i hope you agree with this, isn't?

panlamture · ‎05-25-2005

Dear Friend,

All those ip's are at LAN side not at WAN side.

i am getting WAN ip's once my router get coonected to ISP.

this IS DSL connection

charlesmusgrove · ‎05-26-2005

Hi,

I have a couple of questions. First, I'm assuming that your ISP is supplying you with these 2 ranges of public addresses... is that correct? Secondly, are you getting a static IP address on both WAN interfaces? Please advise.