How to set up a 2610 or 2620 to replace a standard home router?

Mizugori

Senior member
May 3, 2007
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I recently bought two 2600 routers (a 2610 and a 2620; the 2620 has two ethernet ports). Each has a t1 card installed. I also bought a 2900xl catalyst switch.

How could I set this up almost like a small business type office?

can i do:

modem --------> 2620 ethernet port 1

any port on switch --------> 2620 ethernet port 2

? then how do i configure the router? i changed the password when i got it but other than that haven't configured it. also, this means no firewall right? (whereas most home routers have a rudimentary one built in) could i pair it with a cisco pix 501?

thanks!!
 

Cooky

Golden Member
Apr 2, 2002
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When you say "modem" I assume it's a DSL/cable modem that has an ethernet hand-off?

The topology you presented is certainly possible, and will work w/ the proper configuration.
You'll need to look up manual and figure out the actual config.

It sounds like you are familiar w/ networking in general, but are new to Cisco specifics.
It's hard to go through everything step by step, and the best thing is to read through some entry level Cisco books & guides before attempting this.

Regarding the firewall...w/ the proper license, you can get IOS image w/ firewall featureset.
Even if you can get it, I'm not sure if 2620 supports it, since it's really limited in terms of hardware resource.

A Pix501 or even an ASA 5505 would be a much better choice for your firewall needs.
 

jlazzaro

Golden Member
May 6, 2004
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if this setup is temporary and strictly for learning purposes, so be it. if you wish to practice and learn IOS, these devices should be in a lab type setup, not the foundation of your home network.
 

Mizugori

Senior member
May 3, 2007
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anyone willing to step in with some config help? here is the current status of the 2620:

Router>show version
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-I-M), Version 12.3(9), RELEASE SOFTWARE (fc2)
Copyright (c) 1986-2004 by cisco Systems, Inc.
Compiled Fri 14-May-04 14:37 by dchih
Image text-base: 0x80008098, data-base: 0x80CC08C4

ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)

Router uptime is 6 minutes
System returned to ROM by power-on
System image file is "flash:/c2600-i-mz.123-9.bin"

cisco 2621 (MPC860) processor (revision 0x102) with 61440K/4096K bytes of memory
.
Processor board ID JAB040704TL (3368571963)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
2 FastEthernet/IEEE 802.3 interface(s)
1 Serial network interface(s)
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash (Read/Write)

Configuration register is 0x2142
 

jlazzaro

Golden Member
May 6, 2004
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first things first, reset your configuration register so your startup config is loaded at boot up:

(config)#config-register 0x2102

at what point are you at? what material are you using to learn IOS?
 

Mizugori

Senior member
May 3, 2007
496
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ok, here is the show run, can anyone help me configure it as though I were setting up my home as a small office?

thanks a lot for your time and help!!

Current configuration : 524 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
ip subnet-zero
ip cef
!
!
!
!
!
!
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0
no ip address
shutdown
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
no ip http server
ip classless
!
!
!
line con 0
line aux 0
line vty 0 4
login
!
!
end
 

xSauronx

Lifer
Jul 14, 2000
19,582
4
81
what i dont get is...why is it that you bought the equipment without any idea how to use it? :confused:

there was a recent thread here, another user configuring a cisco router as their main router. search for that.

as suggested, you really should reset it. and, also as suggested, you should play around with it in a lab setting, you can fiddle and learn much more that way rather than a one-off config
 

jlazzaro

Golden Member
May 6, 2004
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all i see is a default router configuration. going by your previous posts, you have a desire to break into the network/security field...

if your goal is simply to replace a SOHO router with a 2600, look elsewhere...those things are old, loud, and have a fairly low pps rating.

if your goal is to learn IOS and start studying for your CCNA, take a step back. if you truly have no idea where to start, a book should have been your first investment.

not trying to be a dick, just but being honest :)
 

mcmilljb

Platinum Member
May 17, 2005
2,144
2
81
I remember encountering 2600's back 2000. My first IT job had 2 of them. They must have been fairly new then because they were really expensive. I thought it was amazing how they had modules. I was only 17 then. Any way...

Take jlazzaro's advice and do some reading and praticing. Once you got a feel for the IOS, then you try doing this. Just think about the features you would need if was a small office or even a home router. Then figure out how to enable them ;)
 

Mizugori

Senior member
May 3, 2007
496
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can anyone tell me what the literal commands are to change settings regarding the interfaces? ie how do you set an ip address on the fast ethernet 0/0 interface?

how do i "Set the internal port (e0/0) with a static IP address in the range of the internal network (in this example 192.168.1.0/24), and assign it as the 'inside' NAT interface:"

thanks!
 

RadiclDreamer

Diamond Member
Aug 8, 2004
8,622
40
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Originally posted by: Mizugori
can anyone tell me what the literal commands are to change settings regarding the interfaces? ie how do you set an ip address on the fast ethernet 0/0 interface?

how do i "Set the internal port (e0/0) with a static IP address in the range of the internal network (in this example 192.168.1.0/24), and assign it as the 'inside' NAT interface:"

thanks!


ie how do you set an ip address on the fast ethernet 0/0 interface?

Login
Config t "enter"
int f0/0 "enter"
ip addr 192.168.1.1 255.255.255.0 "enter"
exit "enter"
write mem "enter"


You then would be wise to set a default route for the local network

Config t "enter"
ip route 192.168.1.0 255.255.255.0 xxx.xxx.xxx.xxx "enter"

Where xxxx is your gateway

I'm more of a lan guy than a wan guy so if someone sees an issue with this (calling spidey) please correct
 

drebo

Diamond Member
Feb 24, 2006
7,034
1
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You don't need to specify a route for a locally connected interface unless you are advertising that route via BGP (BGP won't advertise the network unless it's in your routing table). So, I suppose if you really were picky, you could add "ip route 192.168.1.0 255.255.255.0 Null 0".
 

mcmilljb

Platinum Member
May 17, 2005
2,144
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Originally posted by: drebo
You don't need to specify a route for a locally connected interface unless you are advertising that route via BGP (BGP won't advertise the network unless it's in your routing table). So, I suppose if you really were picky, you could add "ip route 192.168.1.0 255.255.255.0 Null 0".

He was thinking a default route which should have been "ip route 0.0.0.0 0.0.0.0 x.x.x.x" in this case. Could also be "ip default-network x.x.x.x".
 

Doomer

Diamond Member
Dec 5, 1999
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I once picked up a 2620 as a consolation prize from a customer who went belly up owing me 500 bucks. I sold it on ebay for $810. Not a bad deal at all, lol.
 

RadiclDreamer

Diamond Member
Aug 8, 2004
8,622
40
91
Originally posted by: mcmilljb
Originally posted by: drebo
You don't need to specify a route for a locally connected interface unless you are advertising that route via BGP (BGP won't advertise the network unless it's in your routing table). So, I suppose if you really were picky, you could add "ip route 192.168.1.0 255.255.255.0 Null 0".

He was thinking a default route which should have been "ip route 0.0.0.0 0.0.0.0 x.x.x.x" in this case. Could also be "ip default-network x.x.x.x".

Doh, lack of sleep and trying to think too fast :)
 

mcmilljb

Platinum Member
May 17, 2005
2,144
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Originally posted by: RadiclDreamer
Originally posted by: mcmilljb
Originally posted by: drebo
You don't need to specify a route for a locally connected interface unless you are advertising that route via BGP (BGP won't advertise the network unless it's in your routing table). So, I suppose if you really were picky, you could add "ip route 192.168.1.0 255.255.255.0 Null 0".

He was thinking a default route which should have been "ip route 0.0.0.0 0.0.0.0 x.x.x.x" in this case. Could also be "ip default-network x.x.x.x".

Doh, lack of sleep and trying to think too fast :)

It's all good. I knew what you meant.

I actually learned something new. I knew ip default-network was classful in older IOS versions, but according to the documentation for 12.4, you can specify subnets as long as they're in your routing table.
 

Cooky

Golden Member
Apr 2, 2002
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ip default-network is actually used to advertise a default route to downstream routers.
It doesn't do the same thing as ip route 0.0.0.0 0.0.0.0.

In this case all the OP needs is just a local default route out to the Internet so this isn't needed.
Also this command only works w/ IGRP/EIGRP & RIP.