Basically you need a hub, 1 router with an ethernet port and a cable modem.
You will need to assign the routable ip that you would get on your NIC to
the ethernet interface of the router. The trick is to have the cable modem
turned off then plug it into the hub and also have the ethernet interface on
the router plugged into the hub. Make sure router is up with the ip address
you would normally get as primary ip. Turn the cable modem on, it will see
the router ethernet interface and grab the mac address and return it to the
UBR or whatever. You will then need to configure NAT overload so it
overloads off the ethernet interface. I will gladly provide this config for
you below:
ip name server xxx.xxx.xxx.xxx DNS server name provided by provider...get
this of winipconfis or ipconfig/all
interface Ethernet0
ip address xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx -ip address that the dhcp server
would usually give your nic
ip nat outside
ip nat inside source list 7 interface ethernet0 overload - defines which
address inside may use NAT overload off the ethernet
access-list permit any - I only have a few system behind everything that
need to get out so this is sufficient
This works folks. I am using a 2511, sure there maybe other ways but I did
not want to bid on a 2 ethernet port 2500 router.
Raul
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Rick Cossey
Sent: Friday, April 27, 2001 8:00 PM
To: [EMAIL PROTECTED]
Subject: Re: 2511 between cable modem and network [7:2312]
Raul,
Please explain what you mean by "1 Ethernet interface".All cable/DSL modems
I have workd with(It has been a lot) have a Ethernet handoff. You need 2
Ethernet interfaces to connect a cable modem to a router and then to your
LAN. Also, I have not been able to get an IOS version for the Cisco 4000
that does IP Address DHCP as needed to be a dhcp client. I am currently
doing it with a Cisco 2514.
Rick
""Raul F. Fernandez"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Or run nat overload off the 1 ethernet interface on the router, thats how
I
> do it.
>
> Raul
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Kevin Wigle
> Sent: Friday, April 27, 2001 4:16 PM
> To: [EMAIL PROTECTED]
> Subject: Re: 2511 between cable modem and network [7:2312]
>
>
> quick answer - no
>
> The connection to the cable modem is ethernet. Don't get confused by the
> term "modem".
>
> You need a router with 2 ethernet ports.
>
> Kevin Wigle
>
> ----- Original Message -----
> From: Roberts, Timothy
> To:
> Sent: Friday, April 27, 2001 3:52 PM
> Subject: 2511 between cable modem and network [7:2312]
>
>
> > Can a 2511 be setup to connect a cable modem (ethernet) to a network
> segment
> > (ethernet)? I was going to use a 4000 but I do not have the flash
> > requirements to run 12.1 code so that I can make use of the "ip address
> > dhcp". Can I use one of the Async ports to connect to the cable modem
end
> > (provider via dhcp) and then enable nat to my network via the e0. Is
this
> > possible? Has anyone tried this before?
> > Thanks
> >
> > Confidentiality Notice: This e-mail message, including any attachments,
is
> > for the sole use of the intended recipient(s) and may contain
confidential
> > and privileged information. Any unauthorized review, use, disclosure or
> > distribution is prohibited. If you are not the intended recipient,
please
> > contact the sender by reply e-mail and destroy all copies of the
original
> > message.
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=2347&t=2312
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
