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I am a teacher at a private school that also supports our computer
network, and we just dumped DSL for a full T1. SBC installed a Cisco
1721 Router, that has (1) T1 port, (1) 10/100 LAN port. There is no
4-port switch module installed. It is configured with 5 static IP's.
SBC doesn't support DHCP on its leased equip.

I have it connected (temp) to a netgear DSL router/4-port switch which
is connected to a unmanaged 24-port switch which cascades to other
24-port switches (we have over 60 PC's in two buildings connected via
fiber) so I can have DHCP for all of the PC's. Everything is working
fine like this, but I have questions, SBC is no help.

1) If the LAN port on the Cisco is only 10/100, what's the point of
having a T1? Why doesn't it have a gigabit port? Am I missing a piece
of hardware?

2) I wan't to have a 24-port gigabit network for the computer lab and
our (2) servers. If I have to plug into the netgear DSL router just to
get DHCP at 10/100, how do I get gigabit speeds even with a 24-port
gigabit switch?

3) How do I use the other (4) IP addresses?

See, these may be dumb questions.

Thanks for your help.

Ray Kinsala

Also posted at alt.certification.network

Thanks for your answer, I get it now. Yes, we got a donation to
upgrade our technology. The catch was that we had to get a T1. With
e-rate, we are only paying $300 per month for the T1. Before we were
paying $260 per month for SDSL with 5 static IP's. Well worth it IMOP.

Do you recommend any brand names for gigabit equip.?










On Thu, 22 Jul 2004 13:37:55 -0400, "ImhoTech" <>
wrote:

>
>"yeabeer" <> wrote in message
>news:.. .
>> I am a teacher at a private school that also supports our computer
>> network, and we just dumped DSL for a full T1. SBC installed a Cisco
>> 1721 Router, that has (1) T1 port, (1) 10/100 LAN port. There is no
>> 4-port switch module installed. It is configured with 5 static IP's.
>> SBC doesn't support DHCP on its leased equip.
>>
>> I have it connected (temp) to a netgear DSL router/4-port switch which
>> is connected to a unmanaged 24-port switch which cascades to other
>> 24-port switches (we have over 60 PC's in two buildings connected via
>> fiber) so I can have DHCP for all of the PC's. Everything is working
>> fine like this, but I have questions, SBC is no help.
>>
>> 1) If the LAN port on the Cisco is only 10/100, what's the point of
>> having a T1? Why doesn't it have a gigabit port? Am I missing a piece
>> of hardware?
>
>You're not missing hardware, you're not understanding what a T1 is. That
>10/100 is 10 megabytes, a T1 is abt 1.5 megabytes.
>>
>> 2) I wan't to have a 24-port gigabit network for the computer lab and
>> our (2) servers. If I have to plug into the netgear DSL router just to
>> get DHCP at 10/100, how do I get gigabit speeds even with a 24-port
>> gigabit switch?
>
>If everything else is gigabit and you use switches you'll get gigabit
>betweent comps and servers. You don't have gigabit WAN.
>
>>
>> 3) How do I use the other (4) IP addresses?
>
>If they have five ip addresses coded to the Cisco, but no hub installed,
>then you'll need at least a switch as the next in the device chain. On this
>switch could be anyt device that could be configured to use an ip address,
>pc router etc. Any device here is directly exposed to the external Internet,
>really no purpose in using all the IP addresses unless you ne Internet
>Accesible servers. Safer to use a router with one ip address, then NAT
>everything through.
>
>
>Are you being given a T1? doesn't reallt make a lot of sense to switch from
>DSL to T1 from a financial standpoint.
>
>>
>> See, these may be dumb questions.
>>
>> Thanks for your help.
>>
>> Ray Kinsala
>>
>> Also posted at alt.certification.network
>>
>

I want gigabit for future-proofing the lab, and also we have a
department of labor job training contract which calls for online
learning using streaming video and flash/shockwave software. With 24
lab pc's all being used at once, the DSL couldn't cut it. Also, the
school's principal wants to use the Cat6 and gigabit lab as a selling
point to get more students and a basis for increasing the tuition.



On Thu, 22 Jul 2004 21:34:30 GMT, Michael <> wrote:

>ImhoTech wrote:
>
>> "yeabeer" <> wrote in message
>> news:...
>>
>>>I am a teacher at a private school that also supports our computer
>>>network, and we just dumped DSL for a full T1. SBC installed a Cisco
>>>1721 Router, that has (1) T1 port, (1) 10/100 LAN port. There is no
>>>4-port switch module installed. It is configured with 5 static IP's.
>>>SBC doesn't support DHCP on its leased equip.
>>>
>>>I have it connected (temp) to a netgear DSL router/4-port switch which
>>>is connected to a unmanaged 24-port switch which cascades to other
>>>24-port switches (we have over 60 PC's in two buildings connected via
>>>fiber) so I can have DHCP for all of the PC's. Everything is working
>>>fine like this, but I have questions, SBC is no help.
>>>
>>>1) If the LAN port on the Cisco is only 10/100, what's the point of
>>>having a T1? Why doesn't it have a gigabit port? Am I missing a piece
>>>of hardware?
>>
>>
>> You're not missing hardware, you're not understanding what a T1 is. That
>> 10/100 is 10 megabytes, a T1 is abt 1.5 megabytes.
>
>10 megabit / 100 megabit and ~ 1.5 megabit.
>
>michael

all i can say is it's a good thing you're working for a private school. the
expense involved in this operation will actually be utilized to LEARN
something, unlike in pubic schools
--
Brought to you courtesy of Kozanski's Morgue & Grill

"yeabeer" <> wrote in message
news:...
> I want gigabit for future-proofing the lab, and also we have a
> department of labor job training contract which calls for online
> learning using streaming video and flash/shockwave software. With 24
> lab pc's all being used at once, the DSL couldn't cut it. Also, the
> school's principal wants to use the Cat6 and gigabit lab as a selling
> point to get more students and a basis for increasing the tuition.
>
>
>
> On Thu, 22 Jul 2004 21:34:30 GMT, Michael <> wrote:
>
> >ImhoTech wrote:
> >
> >> "yeabeer" <> wrote in message
> >> news:...
> >>
> >>>I am a teacher at a private school that also supports our computer
> >>>network, and we just dumped DSL for a full T1. SBC installed a Cisco
> >>>1721 Router, that has (1) T1 port, (1) 10/100 LAN port. There is no
> >>>4-port switch module installed. It is configured with 5 static IP's.
> >>>SBC doesn't support DHCP on its leased equip.
> >>>
> >>>I have it connected (temp) to a netgear DSL router/4-port switch which
> >>>is connected to a unmanaged 24-port switch which cascades to other
> >>>24-port switches (we have over 60 PC's in two buildings connected via
> >>>fiber) so I can have DHCP for all of the PC's. Everything is working
> >>>fine like this, but I have questions, SBC is no help.
> >>>
> >>>1) If the LAN port on the Cisco is only 10/100, what's the point of
> >>>having a T1? Why doesn't it have a gigabit port? Am I missing a piece
> >>>of hardware?
> >>
> >>
> >> You're not missing hardware, you're not understanding what a T1 is.
That
> >> 10/100 is 10 megabytes, a T1 is abt 1.5 megabytes.
> >
> >10 megabit / 100 megabit and ~ 1.5 megabit.
> >
> >michael
>