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Old 12-09-2004, 03:44 AM   #1
adtomar
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Angry Port Blocking


hello Friends,

I have a backup Server with 10 clients each have 2 ethernet card and the card with with these are connected to Backup Server have the same IP address also DHCP server runs on all the 10 clients.

My problem is to connect the 10 cleints with the backup Server with a switch.

As All of them have same IP address on the interface with which they are connected there should be some means from which only one clinet is active at a time so what I think is to block the 9 ports and allow only one at a time to be coonetd with backup server...........

Please guide me is this a right way to solve this probelm or there are some other meathod to do so.........

Also please guide me how to call the commands for port blocking in switches.


Aditya
 
Old 12-14-2004, 12:52 AM   #2
win32sux
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why don't you just give them each their own ip address??
 
Old 12-14-2004, 01:25 AM   #3
adtomar
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thanks for your reply......

My problem is that all the clients have the same IP addresss and I had to find out a strategy to connect theem.......


Aditya
 
Old 12-14-2004, 02:01 AM   #4
chrisfirestar
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it doesnt make sence to force all to have the same IP if you ask me. In fact Im not sure why you even need to the two nic cards.

Give your Backup Server an ip address on your normal network. Then you just have to point your local PC's to back to the local address??

why you require 2 nic cards in each PC? seems obsolete to me???
 
Old 12-14-2004, 02:09 AM   #5
adtomar
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Thanks for your reply,

My clients are not the normal PC they are headless stations and each have 4 NIc and out of them one NIC is dedicated for backup /restore of clients. and each client have the same IP address on the ethernet interface for the Backup/restore.

This is fixed so I have to design keeping in mind that all clients have the same IP on that interface therefore I asked is the port blocink in switch right way to do so..........

Aditya
 
Old 12-14-2004, 02:15 AM   #6
chrisfirestar
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I guess what I am worried about is how the heck will the Backup know what to do with the traffic because it has 9 connected that are the same IP.

What kind of systems are we dealing with? are the Unix?

i dont know if this is a good solution but just 'thinking out loud' but you could have cron jobs to bring up the nic card, do the backup, then bring down the nic again. do this on each PC at different times???

It seems odd that these IP's are not changeable.. it doesnt make sence at all.. i have never known of a PC/server or anything that is set like that??
 
Old 12-14-2004, 03:35 AM   #7
adtomar
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Hello,

Solution which I had chosen is to connect all the 9 clients and the backup server to CISCO 3750 series switch and manually block the 8 ports at a time and perform the backup on the 9 clients and do this in round robin way.......


Aditya
 
  


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