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3750 Routing

 
 
tesseeb@gmail.com
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      04-10-2008
Hi all;

I'm jack of all trades, master of none for my organization so this is
a basic question. I've been out to cisco.com and other multitudes of
sites but the examples appear to be way more complex than what I'm
trying to do so I don't know what's necessary and what's not. Any
pointers would be appreciated.

We have three sites all connected by 3rd-party fiber. Previously, we
had vendor supplied Cisco 3400 ME switches at each site that plugged
into our 1841 routers that were connected to our Linksys switches. I
just finished ripping out the switches and replacing them with 3750G
PS switches at each site. Now I want to pull the 1841 routers at the
two remote sites and use the 3750s to route since I can get a fiber
hand off from the 3400s from the vendor. (I'm not worried about
outside connectivity at this time since that's a whole 'nother can of
worms.)

At one of my sites, we have an addressing scheme of 10.28.20.0/24 with
a default gateway of 10.28.20.1. The new 3750 has the default VLAN1
as 10.28.20.2. The 1841 has a LAN address of 10.28.20.1 and a WAN
address of 10.28.254.2/24 with a route back to 10.28.254.1. The F/E
WAN connection plugs into the 3400 ME switch that then runs back to
the data center. The data center router has two VLANs with this site
as VLAN3 10.28.254.1/24.

Sooo...my question is how I apply the 10.28.20.1 and 10.28.254.2
addresses to the 3750. Do I readdress the switch as 10.28.20.1 and
apply the 10.28.254.2 address to the G/E52 physical port? Or do I
create a second VLAN with the 254 address? Or what?? Like I said,
basic to you guys but slightly puzzling to me in the timeframe I have
to make this work.

Thanks for any help in advance. Let me know if you want the configs.
 
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Merv
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      04-10-2008
On Apr 10, 12:40 pm, (E-Mail Removed) wrote:
> Hi all;
>
> I'm jack of all trades, master of none for my organization so this is
> a basic question. I've been out to cisco.com and other multitudes of
> sites but the examples appear to be way more complex than what I'm
> trying to do so I don't know what's necessary and what's not. Any
> pointers would be appreciated.
>
> We have three sites all connected by 3rd-party fiber. Previously, we
> had vendor supplied Cisco 3400 ME switches at each site that plugged
> into our 1841 routers that were connected to our Linksys switches. I
> just finished ripping out the switches and replacing them with 3750G
> PS switches at each site. Now I want to pull the 1841 routers at the
> two remote sites and use the 3750s to route since I can get a fiber
> hand off from the 3400s from the vendor. (I'm not worried about
> outside connectivity at this time since that's a whole 'nother can of
> worms.)
>
> At one of my sites, we have an addressing scheme of 10.28.20.0/24 with
> a default gateway of 10.28.20.1. The new 3750 has the default VLAN1
> as 10.28.20.2. The 1841 has a LAN address of 10.28.20.1 and a WAN
> address of 10.28.254.2/24 with a route back to 10.28.254.1. The F/E
> WAN connection plugs into the 3400 ME switch that then runs back to
> the data center. The data center router has two VLANs with this site
> as VLAN3 10.28.254.1/24.
>
> Sooo...my question is how I apply the 10.28.20.1 and 10.28.254.2
> addresses to the 3750. Do I readdress the switch as 10.28.20.1 and
> apply the 10.28.254.2 address to the G/E52 physical port? Or do I
> create a second VLAN with the 254 address? Or what?? Like I said,
> basic to you guys but slightly puzzling to me in the timeframe I have
> to make this work.
>
> Thanks for any help in advance. Let me know if you want the configs.





for the WAN GE port

int ge <>
no switchport ! make this a routed port
ip address 10.28.254.2 255.255.255.0
cdp enable

show interface status command should displaythe port as "routed"


configure a suitable dynamci routing protocol i.e EIGRP

 
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