[j-nsp] Urgently Need Sample of IP Address Plan

[Bjorn Tore Paulen]

> -----Opprinnelig melding-----
> Fra: juniper-nsp-bounces at puck.nether.net 
> [mailto:juniper-nsp-bounces at puck.nether.net] På vegne av chenoi A
> Sendt: 16. mars 2009 13:59
> Til: juniper-nsp at puck.nether.net
> Emne: [j-nsp] Urgently Need Sample of IP Address Plan
> 
> Hai...
> 
> I need some advised and sample perhaps... I have being 
> searching net, reading books, get some advise, ARIN/APNIC 
> guide, etc but i still think i miss the idea.
> 
> i have block of /22. What is the best way to manage and 
> allocate the ip ...
> what iam thinking now is for infra, customer, loopback.
> 
> is it ok if i divide it to 4 x /24. where should i start from 
> here....? do i need to allocate 1 block for customer, 1 block 
> for loopback and 1 block for infra...what is the best practice. 
> if i got some example or sample that would give me more 
> understanding on how to do this ip plan.
> 
> i want to ensure my ip plan is well manage and properly 
> assign, no waste of ip. i want to ensure i fully utilize the 
> ip given from RIR.
> 
> Please help me..please do assist me...much appreciate if got 
> sample of ip plan as my guideline.
> 
> thank you in advanced.

Hi

I would recommend you spend one block for loopback (if you can't use RFC1918
addresses?). Depending of the size of your network (I take it it's not too
big, since you got a /22 in total), this could perhaps be a /26 or smaller.
Then you could use the reset of the corresponding /24 for INFRA-AW, using
/31 to keep the usage low. Also, I would keep one block for customers that
want routing and own servers (for instance one /25 consisting of /30, /29,
/28). The rest should be for linknet between PE and CE. I take it this is
for business customers? Do you need anything for DHCP or PPPoE for domestic
users?

It's very difficult to give an educated advice when the network structure is
unknown.

/BT