Re: Cisco 4000 behind a cable modem [7:1498]
I just might add...I have a similar scenarion as you mention .but i have a 2511 it does not matter ios is ios . i basically don't have to do nothing my 2511 pick up an ip address on the fly from dsl router. i am running the below. Cisco Internetwork Operating System Software IOS (tm) 3000 Software (IGS-I-L), Version 11.1(24a), RELEASE SOFTWARE (fc1) Copyright (c) 1986-2001 by cisco Systems, Inc. Compiled Fri 09-Mar-01 19:43 by pnicosia Image text-base: 0x03020728, data-base: 0x1000 Tim Roberts wrote: I just had cable internet access installed. I want to put a 4000 (with a 6-port ethernet module) between the cable modem and my network. The cable service only does dynamic addressing at this point. Every few weeks, I will get a new IP address. The IP address is grabbed by the PC not by the cable modem. So in order to put the 4000 between the cable box and my network, I will need one of the ethernet ports to grab an IP from the DHCP server. I cannot remember if there is a way to make an ethernet port do this. Can someone help me out with this or recommend another way to perform this task. Thanks _ Get your FREE download of MSN Explorer at http://explorer.msn.com 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=7i=1517t=1498 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco 4000 behind a cable modem [7:1498]
You may have to do some research to find what IOS first supports routers a dhcp clients if this command doesn't just work, but here it is: int e0 ip address dhcp You may also want to change the MAC address on your interface if your cable company has tied your access to the NIC you used during the install (I know a number of providers have done that, thinking they could stop multiple access or something silly like that). int e0 mac-address .abcd.abcd You'll then want to use this interface for PAT: ip nat inside source list 1 interface Ethernet0 overload access-list 1 permit 192.168.1.0 0.0.0.255 -- Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+ List email: [EMAIL PROTECTED] Homepage: http://jason.artoo.net/ Tim Roberts wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I just had cable internet access installed. I want to put a 4000 (with a 6-port ethernet module) between the cable modem and my network. The cable service only does dynamic addressing at this point. Every few weeks, I will get a new IP address. The IP address is grabbed by the PC not by the cable modem. So in order to put the 4000 between the cable box and my network, I will need one of the ethernet ports to grab an IP from the DHCP server. I cannot remember if there is a way to make an ethernet port do this. Can someone help me out with this or recommend another way to perform this task. Thanks _ Get your FREE download of MSN Explorer at http://explorer.msn.com 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=7i=1513t=1498 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Cisco 4000 behind a cable modem [7:1498]
I was stating that ip address dhcp needed to have 12.1(2)T not NAT. Brian Dennis CCIE #2210 (RS)(ISP/Dial) CCSI #98640 -Original Message- From: Circusnuts [mailto:[EMAIL PROTECTED]] Sent: Saturday, April 21, 2001 7:27 PM To: Brian Dennis; [EMAIL PROTECTED] Subject: Re: Cisco 4000 behind a cable modem [7:1498] I know NAT started with 11.2. 11.2 11.3 (gotta MZMaker the 11.3) work fine on the 4 Meg 4000's. If I'm not mistaken, 11.3 started the ability to run Dynamic in out (can anyone correct me here ???) Phil - Original Message - From: Brian Dennis To: Sent: Saturday, April 21, 2001 7:07 PM Subject: RE: Cisco 4000 behind a cable modem [7:1498] Might add that a standard 4000 can't run the 12.1T train but can run the 12.1 mainline. You'll need a 4500 or 4700 to get the T train features. Brian Dennis CCIE #2210 (RS)(ISP/Dial) CCSI #98640 -Original Message- From: Brian Dennis [mailto:[EMAIL PROTECTED]] Sent: Saturday, April 21, 2001 4:00 PM To: Tim Roberts; [EMAIL PROTECTED] Subject: RE: Cisco 4000 behind a cable modem [7:1498] Tim, You could use ip address dhcp on your Ethernet interface connected to the cable modem. It's a 12.1(2)T feature. Access_Server(config-if)#ip address ? A.B.C.D IP address dhcp IP Address negotiated via DHCP You'll need to set up NAT if you're only getting one IP address to use. Also they may have the cable modem configured to only talk to one particular MAC address. If so just change the MAC address on the Ethernet interface connected to the cable modem to same as your PC's NIC. Brian Dennis CCIE #2210 (RS)(ISP/Dial) CCSI #98640 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Tim Roberts Sent: Saturday, April 21, 2001 2:32 PM To: [EMAIL PROTECTED] Subject: Cisco 4000 behind a cable modem [7:1498] I just had cable internet access installed. I want to put a 4000 (with a 6-port ethernet module) between the cable modem and my network. The cable service only does dynamic addressing at this point. Every few weeks, I will get a new IP address. The IP address is grabbed by the PC not by the cable modem. So in order to put the 4000 between the cable box and my network, I will need one of the ethernet ports to grab an IP from the DHCP server. I cannot remember if there is a way to make an ethernet port do this. Can someone help me out with this or recommend another way to perform this task. Thanks _ Get your FREE download of MSN Explorer at http://explorer.msn.com 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=7i=1511t=1498 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco 4000 behind a cable modem [7:1498]
If I remember from previous posts on this list, a particular IOS version is required to let a router port to be a DHCP "client". It is something like 12.0(3)XKG ?? - but search the archives to be sure. Don't know if a 4000 can handle that IOS anyway. I think your simplest route would be to purchase a LinkSys Cable/DSL Router and let it do it for you. (other manufacturers also have like machines). Get the one port model, the WAN ethernet goes to the cable modem and the LAN ethernet goes to your router. Very easy box to set up. I use two, one for cable and one for DSL. Kevin Wigle - Original Message - From: "Tim Roberts" To: Sent: Saturday, 21 April, 2001 17:31 Subject: Cisco 4000 behind a cable modem [7:1498] I just had cable internet access installed. I want to put a 4000 (with a 6-port ethernet module) between the cable modem and my network. The cable service only does dynamic addressing at this point. Every few weeks, I will get a new IP address. The IP address is grabbed by the PC not by the cable modem. So in order to put the 4000 between the cable box and my network, I will need one of the ethernet ports to grab an IP from the DHCP server. I cannot remember if there is a way to make an ethernet port do this. Can someone help me out with this or recommend another way to perform this task. Thanks _ Get your FREE download of MSN Explorer at http://explorer.msn.com 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=7i=1501t=1498 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Cisco 4000 behind a cable modem [7:1498]
Tim, You could use ip address dhcp on your Ethernet interface connected to the cable modem. It's a 12.1(2)T feature. Access_Server(config-if)#ip address ? A.B.C.D IP address dhcp IP Address negotiated via DHCP You'll need to set up NAT if you're only getting one IP address to use. Also they may have the cable modem configured to only talk to one particular MAC address. If so just change the MAC address on the Ethernet interface connected to the cable modem to same as your PC's NIC. Brian Dennis CCIE #2210 (RS)(ISP/Dial) CCSI #98640 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Tim Roberts Sent: Saturday, April 21, 2001 2:32 PM To: [EMAIL PROTECTED] Subject: Cisco 4000 behind a cable modem [7:1498] I just had cable internet access installed. I want to put a 4000 (with a 6-port ethernet module) between the cable modem and my network. The cable service only does dynamic addressing at this point. Every few weeks, I will get a new IP address. The IP address is grabbed by the PC not by the cable modem. So in order to put the 4000 between the cable box and my network, I will need one of the ethernet ports to grab an IP from the DHCP server. I cannot remember if there is a way to make an ethernet port do this. Can someone help me out with this or recommend another way to perform this task. Thanks _ Get your FREE download of MSN Explorer at http://explorer.msn.com 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=7i=1502t=1498 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Cisco 4000 behind a cable modem [7:1498]
Might add that a standard 4000 can't run the 12.1T train but can run the 12.1 mainline. You'll need a 4500 or 4700 to get the T train features. Brian Dennis CCIE #2210 (RS)(ISP/Dial) CCSI #98640 -Original Message- From: Brian Dennis [mailto:[EMAIL PROTECTED]] Sent: Saturday, April 21, 2001 4:00 PM To: Tim Roberts; [EMAIL PROTECTED] Subject: RE: Cisco 4000 behind a cable modem [7:1498] Tim, You could use ip address dhcp on your Ethernet interface connected to the cable modem. It's a 12.1(2)T feature. Access_Server(config-if)#ip address ? A.B.C.D IP address dhcp IP Address negotiated via DHCP You'll need to set up NAT if you're only getting one IP address to use. Also they may have the cable modem configured to only talk to one particular MAC address. If so just change the MAC address on the Ethernet interface connected to the cable modem to same as your PC's NIC. Brian Dennis CCIE #2210 (RS)(ISP/Dial) CCSI #98640 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Tim Roberts Sent: Saturday, April 21, 2001 2:32 PM To: [EMAIL PROTECTED] Subject: Cisco 4000 behind a cable modem [7:1498] I just had cable internet access installed. I want to put a 4000 (with a 6-port ethernet module) between the cable modem and my network. The cable service only does dynamic addressing at this point. Every few weeks, I will get a new IP address. The IP address is grabbed by the PC not by the cable modem. So in order to put the 4000 between the cable box and my network, I will need one of the ethernet ports to grab an IP from the DHCP server. I cannot remember if there is a way to make an ethernet port do this. Can someone help me out with this or recommend another way to perform this task. Thanks _ Get your FREE download of MSN Explorer at http://explorer.msn.com 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=7i=1503t=1498 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco 4000 behind a cable modem [7:1498]
I know NAT started with 11.2. 11.2 11.3 (gotta MZMaker the 11.3) work fine on the 4 Meg 4000's. If I'm not mistaken, 11.3 started the ability to run Dynamic in out (can anyone correct me here ???) Phil - Original Message - From: Brian Dennis To: Sent: Saturday, April 21, 2001 7:07 PM Subject: RE: Cisco 4000 behind a cable modem [7:1498] Might add that a standard 4000 can't run the 12.1T train but can run the 12.1 mainline. You'll need a 4500 or 4700 to get the T train features. Brian Dennis CCIE #2210 (RS)(ISP/Dial) CCSI #98640 -Original Message- From: Brian Dennis [mailto:[EMAIL PROTECTED]] Sent: Saturday, April 21, 2001 4:00 PM To: Tim Roberts; [EMAIL PROTECTED] Subject: RE: Cisco 4000 behind a cable modem [7:1498] Tim, You could use ip address dhcp on your Ethernet interface connected to the cable modem. It's a 12.1(2)T feature. Access_Server(config-if)#ip address ? A.B.C.D IP address dhcp IP Address negotiated via DHCP You'll need to set up NAT if you're only getting one IP address to use. Also they may have the cable modem configured to only talk to one particular MAC address. If so just change the MAC address on the Ethernet interface connected to the cable modem to same as your PC's NIC. Brian Dennis CCIE #2210 (RS)(ISP/Dial) CCSI #98640 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Tim Roberts Sent: Saturday, April 21, 2001 2:32 PM To: [EMAIL PROTECTED] Subject: Cisco 4000 behind a cable modem [7:1498] I just had cable internet access installed. I want to put a 4000 (with a 6-port ethernet module) between the cable modem and my network. The cable service only does dynamic addressing at this point. Every few weeks, I will get a new IP address. The IP address is grabbed by the PC not by the cable modem. So in order to put the 4000 between the cable box and my network, I will need one of the ethernet ports to grab an IP from the DHCP server. I cannot remember if there is a way to make an ethernet port do this. Can someone help me out with this or recommend another way to perform this task. Thanks _ Get your FREE download of MSN Explorer at http://explorer.msn.com 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=7i=1509t=1498 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco 4000 behind a cable modem [7:1498]
I just finished setting this up @ the house. I'm assuming you want to do this for config access-list experience (or you would buy a Linksys :o) Most often than not, the cable modem does the analog to digital transfer (so you need this irregardless of the setup). I live in a suburb of Washington DC we have digital to the demark outside in the yard, with analog terminating @ the modem here inside the house. I used a twin Ethernet 3101 router with 2500 Series IP/Firewall IOS. I'm running NAT inside overload, which is better know as PAT. I have a 254 address block on the inside, that can travel under the one global IP I have (although I never have use for more than two). Firewall#sh run Building configuration... Current configuration: ! version 12.0 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname Firewall ! enable password Cisco ! ip subnet-zero ip name-server 24.xxx.xxx.33 ip name-server 24.xxx.xxx.34 ! ! ! interface Ethernet0 ip address 10.1.1.1 255.255.255.0 no ip directed-broadcast ip nat inside ! interface Ethernet1 ip address 24.xxx.xxx.72 255.255.255.0 no ip directed-broadcast ip nat outside ! ip default-gateway 24.xxx.xxx.1 ip nat pool Molly 24.xxx.xxx.72 24.xxx.xxx.72 netmask 255.255.255.0 ip nat inside source list 1 pool Molly overload ip classless ip route 0.0.0.0 0.0.0.0 24.xxx.xxx.1 ! access-list 1 permit 10.1.1.0 0.0.0.255 ! line con 0 transport input none line aux 0 line vty 0 4 password Phil login ! end I hope this helps Phil Phil - Original Message - From: Tim Roberts To: Sent: Saturday, April 21, 2001 5:31 PM Subject: Cisco 4000 behind a cable modem [7:1498] I just had cable internet access installed. I want to put a 4000 (with a 6-port ethernet module) between the cable modem and my network. The cable service only does dynamic addressing at this point. Every few weeks, I will get a new IP address. The IP address is grabbed by the PC not by the cable modem. So in order to put the 4000 between the cable box and my network, I will need one of the ethernet ports to grab an IP from the DHCP server. I cannot remember if there is a way to make an ethernet port do this. Can someone help me out with this or recommend another way to perform this task. Thanks _ Get your FREE download of MSN Explorer at http://explorer.msn.com 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=7i=1507t=1498 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
