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CISCO 1841 router

Posted on 2008-10-17
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Last Modified: 2008-11-18
Hi,
Recently we have purchased CISCO router 1841 with T1 connector and we got our lease line to connect. Please help me for the following :
1. any document I can refer to configure this router for LAN/WAN interface and VPN routing through ISA server
2. Also can I get a software instead of using Hyper terminal

awaiting your reply
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Question by:Jinesh Kumar Kochath
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keno44 earned 250 total points
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Here are some basics to get you  started..

I like to use the software putty.EXE to connect via telnet or SSH.

http://downloads.zdnet.com/abstract.aspx?docid=362438

But first you have configure some settings from the Console port.

Set the host name and password to the router

router>enable
router#hostname myRouter
myRouter#conf t
myRouter(conf)#enable secret some_password_you_like

enable remote logons via telnet (don't enable telnet if you're connecting over a public network!!

myRouter(config)#line vty 0-4
myRouter(config-line)#login
myRouter(config-line)#password some_password_you_like

set password for console logons

myRouter(config-if)#line con 0
myRouter(config-line)#login
myRouter(config-line)#password some_password_you_like

Assign IPs to the interfaces

myRouter(config)#int e0/1
myRouter(config-if)#ip address 192.168.1.1 255.255.255.0 (your preferred IP gateway for your LAN)
myRouter(config-if)#no shut
myRouter(config)#int s0/1
myRouter(config-if)#ip address X.X.X.X Y.Y.Y.Y (your ISP assigned IP)
myRouter(config-if)#no shut



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by:Jinesh Kumar Kochath
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thanks a lot for your update and let me try it out tommorrow in office and will come back to you
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by:keno44
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I guess I disregarded the part where you said you already were connected. You can probably disregard the WAN serial interface config. I'll defer to the other experts about setting up VPN and ISA access, I don't have experience with those. I hope the putty.EXE and remote logon information is helpful to you.

Regards, Ken
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by:wingatesl
wingatesl earned 250 total points
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If your ISA server has two network cards (designed to sit on the edge of your network), the configuration is simple

conf t
int serial 0/0
ip unnumbered fa 0
int fa 0
ip address <ip address given by ISP> <subnet mask>
no shut

on the isa server's outside interface you would put the routed IPs given by your ISP and plug that connection into fastethernet 0 of the 1841
Shawn
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by:wingatesl
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I use teraterm for communications.
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by:Jinesh Kumar Kochath
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Hi,
I have typed user name and pw cisco/cisco and it is asking for your name and what ever name I type it is not accepting, please advise
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by:wingatesl
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It seems you will have to reset the password on the router. You can find the instructions here.
http://www.cisco.com/en/US/products/hw/routers/ps221/products_password_recovery09186a0080094773.shtml
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by:wingatesl
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Please disregard.
That is the router's prompt.
Enter the commands I gave you previously and then type in write mem
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Author Comment

by:Jinesh Kumar Kochath
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Hi,
I have configured hostname, pw etc and also configured f0/1 interface and I am able to ping that IP.

But when I configured int serial 0/0/0 with ip address assigned by ISP, I cannot ping those ips even after config saved. I mean i cannot ping from my win xp cmd prompt
Please advise
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Author Comment

by:Jinesh Kumar Kochath
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Hi shawn
we have two interface cards on our ISA server and as per your request, I have done the following :
conf t
int serial 0/0/0
ip unnumbered fa 0
int fa 0
ip address <ip address given by ISP> <subnet mask>
no shut
on the isa server's outside interface I have added one of the IP ranges given by ISP. But no luck things are not working
please advise

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Expert Comment

by:wingatesl
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Did the ISP give you two sets of IP addresses? If you like you can send the specifics to my email posted on my profile as opposed to dumping them onto here(not recommended)
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Author Comment

by:Jinesh Kumar Kochath
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Hi,
I got one serial wan IP from ISP which is starting from 83 as I am not remembering those as now I am sitting in my home
and also given me one IP range where I can use 12 IP nos. Nothing else ISP is given me
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Author Comment

by:Jinesh Kumar Kochath
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presently my ISA server is working as per the following :
ADSL router IP : 1.1.1.5
ISA Server External IP : 1.1.1.1
ISA Server Internal IP : 192.168.160.1

and also in ADSL Linsys router we put forwarding and DMZ zone for VPN requests and outlook anywhere and OWA request

Now I wants to change this scenario into my CISCO router, please advise

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Expert Comment

by:wingatesl
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We are going to do this slightly different

conf t
int serial 0/0
ip address <Serial WAN IP>
int fa 0
ip address <First of your 12 addresses> <subnet mask>
no shut
ip route 0.0.0.0 0.0.0.0 <Serial WAN gateway>
write mem

on the ISA server put the second of your 12 addresses and set the default gateway to the ip address you put on fa 0


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Author Comment

by:Jinesh Kumar Kochath
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sorry for delay as I was travelling outside. let me try it out and will come back to you
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Author Comment

by:Jinesh Kumar Kochath
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Hi
sorry for delay, I have installed SDM in my pc and I am able to access my router. if some one can guide me through SDM how can I do this setup
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