Yes but there are some security concerns with DHCP when sharing wireless 
sectors. To prevent requires tracking MAC addressess, which is one more 
headache to track. Sure if you are doing true 802.11 CPE, no problem, the 
link uses the MAC of the CPE that you already know, but when supporting true 
bridging, it means discovering teh MAC of the customer provided Home Router.

Tom DeReggi
RapidDSL & Wireless, Inc
IntAirNet- Fixed Wireless Broadband


----- Original Message ----- 
From: <[EMAIL PROTECTED]>
To: "WISPA General List" <wireless@wispa.org>
Sent: Monday, January 28, 2008 9:15 PM
Subject: Re: [WISPA] Private vs Public addresses for end-users


>
> Ryan,
>
> Have you considered using DHCP to manage manually assigned IP addresses?
> It offers the best of both worlds. The IPs are statically mapped to
> customers, yet the allocations are managed on the server side, eliminating
> the concern about ongoing maintenance (lost client settings).
> Additionally, duplicate IP allocation is prevented.
>
> ted
>
> On Mon, 28 Jan 2008, Ryan Langseth wrote:
>
>> My thoughts got ahead of my fingers,,  it was supposed to say bigger
>> and more profitable.
>>
>> I am looking at it from my standpoint,  we have 2000+ customers, 48
>> POPs and yes, all static IP addresses (a mix of internet routable and
>> rfc1918).  We have 2 full time installers and 2-3 CSRs on during
>> business hours.  Now, in order to  assign an IP address the tech has
>> to call in and get one from the CSRs,  that can take awhile especially
>> when we are busy.  Assigning and managing IPs is done with a BFS (Big
>> %&#ing Spreadsheet), I am guessing you currently use the same method.
>> Now we could assign the IP address on the work order, but then you
>> have to make sure it gets used, or marked as free if it is a no-go,
>> this is more difficult with more people.   Also since we have multiple
>> CSRs we have to have the BFS shared,  that causes numerous time delays
>> when saving, making changes and dealing with conflicts.
>>
>> Luckily  I hardly ever have to deal with the BFS, or IP assignment.
>> But I do believe it can be better
>>
>> Rather than looking at how well it works now,  take a look at how it
>> will work in the future.  If you are ok with what you see,  continue
>> how you want.  I am only expressing my opinion  and will not feel bad
>> if you do not agree with it. ;)
>>
>> Ryan
>>
>> On Jan 28, 2008, at 5:16 PM, Jason Hensley wrote:
>>
>>> Not sure where the 10+ minutes per install addition for a static IP
>>> comes
>>> into play.  Takes 30 seconds or so to program that in.  Yeah, not
>>> quite as
>>> convenient as DHCP, and you run the risk of duplicate IP's if you get
>>> sloppy, but otherwise I see a huge advantage with static.
>>>
>>> Renumbering, like you mentioned, is also MUCH easier if you have
>>> internal
>>> privates.  I NAT at the headend - not at each tower / POP.  Makes
>>> management
>>> very easy for me.
>>>
>>> For me, static works, dhcp doesn't.  Of course, everyone is different.
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
>>> On
>>> Behalf Of Ryan Langseth
>>> Sent: Monday, January 28, 2008 5:12 PM
>>> To: WISPA General List
>>> Subject: Re: [WISPA] Private vs Public addresses for end-users
>>>
>>> There are things like looking at the customer base.
>>>
>>> 1) are they likely to need incoming connections  ( This is mainly for
>>> businesses )
>>> 2) are they likely to get a worm and have it start spamming ( I hate
>>> trying
>>> to track down a spammy machine behind NAT ... its not hard just
>>> annoying)
>>> 3) are they going to have problems with double NAT, the customers
>>> router
>>> will be doing nat also.  Certain system do not handle that very nicely
>>>
>>> Frankly I hate using Private IPs for customers at all,  I also
>>> strongly
>>> dislike not doing DHCP unless the customer is paying for that static.
>>> Static IP addressing is a PITA if you have to renumber,  obivously
>>> with
>>> privates that problem is largely gone.
>>>
>>> Depending on where you are doing your NAT,  I would suggest if you
>>> go that
>>> route to do it at your Head End, not at your edge routers.  That way
>>> you can
>>> implement one of the common IDS/IPS systems to find problem customers
>>> (virus, etc) .
>>>
>>> Not doing DHCP, if you plan on being profitable, imo, is also a major
>>> mistake.  You will end up consuming 10+ minutes of your install
>>> techs and
>>> CSRs time per install.
>>>
>>>
>>> Ryan
>>>
>>> On Jan 28, 2008, at 3:37 PM, Ugo Bellavance wrote:
>>>
>>>> Tom DeReggi wrote:
>>>>> whether to give private or public address has nothing to do with
>>>>> cost.
>>>>>
>>>>
>>>> Oh, what are the thing to consider exactly?
>>>>
>>>> Regards,
>>>>
>>>> Ugo Bellavance
>>>>
>>>>
>>>>
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