Thanks for the info Mac.
First, I'm not that concerned about the CPE utility
working. That's one reason I like the static IP setup - I know what user
has what IP and how to get to their CPE.
For the VLAN switch (that I'm not familiar with at
all) can you tell me how this would work on a 2 hop setup? Basically
what I have is Tower 1 to Tower 2 using 5.8 backhaul, then Tower 2 to NOC using
another 5.8 backhaul. Where would I drop the switch, or do I need one
at each tower?
Main thing / challenge that I'm seeing right now is
that, like someone else mentioned either here or on the other list, is that I
cannot do true routing with TR-6000's (my AP's). So, what I've
got to figure out how to get past that. I'm considering
replacing the 6000's with Mikrotik's, but not sure about that 100%
I think I've been talked out of using the public
IP's on each CPE ;-) and am now planning to do 1-1 NAT. But, I'm
just having trouble picturing in my head how I'm going to do this - especially
with the TR6000 routing capabilities (or lack of).
Public IP's, at least for now, are pretty easy for
me to get. I could easily justify another /24 to my upstream, but beyond
that, it would take some pretty convincing data for me to get more. But,
once I get to that size, I'll be looking at buying my own block(s).
----- Original Message -----
Sent: Wednesday, August 23, 2006 9:48
Subject: RE: [WISPA] Managing CPE in
one of the largest bridged networks ever as I cover 15-18% of the State with
wireless. I can tell you a few things about bridging-vs-routing and I aint
getting into that, but I can tell you that I dont think you will want a
totally static routed network either. That is not necessary unless you have
50-60 clients to the AP and have multiple hops with that type of traffic. You
do need to be in a routed environment today, but IMHO not in the way the
majority would steer you.
Ok, this may be a simple question,
but I'm trying to figure the best way to do this. My wireless
network is currently all bridged with three different POP's (all statically
assigned private IP's). I'm getting requests for public IP
addresses and as I add more clients, I feel like I'm really going to need to
have a routed network.
There are many ways
to accomplish what you need to have done and I suggest that you look at each
one of the suggestions that will have been made and get a good understanding
of what will be required down the road to continue what you start. There are a
couple very simple solutions that will work, but then there are many ways to
accomplish the same task using static routing.
- Simplest and fastest (maybe
best) is to use layer 2 switches utilizing VLANS. You can get a switch like
a ($250.00) Linksys SRW224G4 (naturally there are better but that will
work fine) as there are whole Counties utilizing networks with the Linksys
switches and routing and they arent even wireless, but fiber!
Arlington County Virginia is just one example and they
do the back up for the Pentagon and they are a huge completely bridged
- Keep your bridged environment
between your APs and your clients, but route the backbone to all of your
towers. It will break up the broadcast packets...etc from tower to tower,
will segment each tower and will not allow a single clients virus to sweep
through your entire network and have rolling outages. It also keeps you from
having to use 10 subnets/ip ranges for 3 towers and allows for unlimited
My biggest question is, how do you
manage your CPE remotely in a routed network? Right now I'm pretty much
90% Tranzeo gear (mixture of CPE-15's and CPQ gear). If a customer calls
with performance or other problems, I'm able to log into their CPE from here
to see what's going on from that end. I would much rather maintain that
ability but not sure how to do that with a routed network.
I understand this
question as only another etherant/Tranzeo CPE user would :) Once you
enter a routed environment on the backhaul or otherwise your scan utility
will not scan but to the first router where it will loose its ability to go
any farther as the scan tool uses broadcast packets to seek its objects and
the router kills broadcast packets. You will have to log every IP on your
network and access the antennas via HTTP. (web interface) The scan tool will
still be functional at each individual tower and will capture the antennas on
the wireless AP you are attached to at the moment. If you maintain a bridged
network w/VLANS then the scan tool and everything else will work as it does
Also, I would ideally like to have
a public IP assigned to each CPE. The double NAT'ing I've got going
right now has been causing a few issues, plus, I'm getting more business
customers that want VPN and Remote Access to their network.
I would NOT use
public IPs for CPE, but I try to use public IPs for my infrastructure. Its one
of those deals where we all have our own beliefs, If you use private IPs then
you would need to do a VPN or RDP (remote desk top) back into your network to
see whats going on. The biggest advantage to privates on infrastructure is NO
HACKING from China...etc. Give only public IPs
to those who have a need and willing to pay a little extra for the ability.
VPNs work even though they are behind NAT. I would also encourage you to keep
your bandwidth shaping at the head end of your network for convenience and
easy back up. They can only send data as fast as you allow them irregardless
of where you do traffic shaping. The PC will slow down the data it is sending
thru your network to match what you set there speed to be and it does not
create a traffic jam on your network - - as some would make you
I realize this will take
subnetting to make it happen. I've got a /24 right now and can easily
bump to more when needed.
I have a huge network
right now and only have 2 /24s and 2 /27s, but I dont give public IPs to
anyone who dont pay for them so 90% of my clients have a private IP. If more
public IPs are easy to get get them! Once again the greatest advantage of
private IPs is the lack of the rest of the world to hack on our clients.
How are the rest of you handling
your setups like this?
Half of my network is
static routed and half is completely bridged. Which one is faster? The
bridged! Which one is easier to maintain? The bridged! Which one is
easier to add clients to? The bridged! Tell me is the internet bridged or
routed? It is a combination of both! Routers are only used where routers are
needed and if you counted the routers vs- switches on the fiber
backbone of the internet which do you think have the greatest population? I
see it the same way on my network - - I will route where I need a router and
use a good switch and a VLAN everywhere else.
Let the games begin
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