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Class C to Class B

 
 
nate.ists@gmail.com
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      12-26-2007, 11:05 PM
I currently have a 192.168.1.x/24 network that is saturated. While I'm
reworking the network architecture, I think I need to change to a 16
bit netmask. From the research that I've done, it looks pretty
straight-forward to change a server's (running AD) IP address, so that
gives me hope it's not too hard. I plan on keeping the server IP the
same, but changing the netmask from 255.255.255.0 to 255.255.0.0.

Any words of caution? I know I'll have to "update" this in my DHCP
range, on all printers/devices and so on.

Nathan
 
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Bill Grant
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      12-26-2007, 11:33 PM
If you are doing a rework of your network, why not simply create a
second /24 subnet an route between them? That way you do not ned to change
anything in the existing network or the existing DHCP scope. Just set up a
new scope for the new subnet.

<(E-Mail Removed)> wrote in message
news:3cac5b04-ca60-4c9f-9e46-(E-Mail Removed)...
>I currently have a 192.168.1.x/24 network that is saturated. While I'm
> reworking the network architecture, I think I need to change to a 16
> bit netmask. From the research that I've done, it looks pretty
> straight-forward to change a server's (running AD) IP address, so that
> gives me hope it's not too hard. I plan on keeping the server IP the
> same, but changing the netmask from 255.255.255.0 to 255.255.0.0.
>
> Any words of caution? I know I'll have to "update" this in my DHCP
> range, on all printers/devices and so on.
>
> Nathan


 
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maxwelln@gmail.com
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      12-27-2007, 12:47 AM
Thanks - hadn't thought of that. I guess I would setup my Sonicwall so
that it knew both /24's were "local" - seems like that would really
increase the work-load on the router/sonicwall though wouldn't it? All
of a sudden any packets for the new /24 would have to bounce off the
router and back onto the network as opposed to the switches handling
them right? Or, am I off on picturing how that would work. It's hard
to visualize packet movement since I've not set something up like that
before.

Seems like moving to a /16 still seems like the best option That would
go from a 192.168.1.0 to a 192.168.0.0 setup. Maybe I'm not seeing
your suggestion clearly.

Nathan

On Dec 26, 6:33 pm, "Bill Grant" <not.available@online> wrote:
> If you are doing a rework of your network, why not simply create a
> second /24 subnet an route between them? That way you do not ned to change
> anything in the existing network or the existing DHCP scope. Just set up a
> new scope for the new subnet.
>
> <nate.i...@gmail.com> wrote in message
>
> news:3cac5b04-ca60-4c9f-9e46-(E-Mail Removed)...
>
> >I currently have a 192.168.1.x/24 network that is saturated. While I'm
> > reworking the network architecture, I think I need to change to a 16
> > bit netmask. From the research that I've done, it looks pretty
> > straight-forward to change a server's (running AD) IP address, so that
> > gives me hope it's not too hard. I plan on keeping the server IP the
> > same, but changing the netmask from 255.255.255.0 to 255.255.0.0.

>
> > Any words of caution? I know I'll have to "update" this in my DHCP
> > range, on all printers/devices and so on.

>
> > Nathan


 
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Bill Grant
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      12-27-2007, 10:28 PM
That depends on what you use to route between the subnets. If your switch
supports it you could use VLANs. You could use the Sonicwall and two
switches if the Sonicwall has two LAN ports. Or you could use a separate LAN
router.

<(E-Mail Removed)> wrote in message
news:4f2b773f-cb89-450b-8aea-(E-Mail Removed)...
> Thanks - hadn't thought of that. I guess I would setup my Sonicwall so
> that it knew both /24's were "local" - seems like that would really
> increase the work-load on the router/sonicwall though wouldn't it? All
> of a sudden any packets for the new /24 would have to bounce off the
> router and back onto the network as opposed to the switches handling
> them right? Or, am I off on picturing how that would work. It's hard
> to visualize packet movement since I've not set something up like that
> before.
>
> Seems like moving to a /16 still seems like the best option That would
> go from a 192.168.1.0 to a 192.168.0.0 setup. Maybe I'm not seeing
> your suggestion clearly.
>
> Nathan
>
> On Dec 26, 6:33 pm, "Bill Grant" <not.available@online> wrote:
>> If you are doing a rework of your network, why not simply create a
>> second /24 subnet an route between them? That way you do not ned to
>> change
>> anything in the existing network or the existing DHCP scope. Just set up
>> a
>> new scope for the new subnet.
>>
>> <nate.i...@gmail.com> wrote in message
>>
>> news:3cac5b04-ca60-4c9f-9e46-(E-Mail Removed)...
>>
>> >I currently have a 192.168.1.x/24 network that is saturated. While I'm
>> > reworking the network architecture, I think I need to change to a 16
>> > bit netmask. From the research that I've done, it looks pretty
>> > straight-forward to change a server's (running AD) IP address, so that
>> > gives me hope it's not too hard. I plan on keeping the server IP the
>> > same, but changing the netmask from 255.255.255.0 to 255.255.0.0.

>>
>> > Any words of caution? I know I'll have to "update" this in my DHCP
>> > range, on all printers/devices and so on.

>>
>> > Nathan

>


 
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