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Replies

Help with cisco 1841

marklet8217
Level 1
Level 1

Hi everyone - thanks for taking time to help me out.  First off - I am a complete and total noob, I know how to access the command line through telnet and issue show running_config.  Beyond that, please understand that I don't know much.

A school I work for has paid for a new ethernet internet service, to replace a T1 line.  Right now both services are operational.  The T1 is running though a Cisco 1841 router on the serial0/0/0 interface.  The ethernet connection comes from a gateway(or modem or router, anyway, a box that was supplied by the ISP) and probably should end up in fastethernet0/1 since fastethernet0/0 is being used to connect to the switch.  The IP information supplied by the new ISP is as follows:

Static ip settings:

***.***.94.86

IP Address

255.255.255.252

Subnet Mask

***.***.94.85

Gateway

64.16.28.2

DNS1

137.118.1.33

DNS2

Below is our current config: 99% of this was created by someone no longer working for the school and 1% is my messing around to try to make this work.  PLEASE BE KIND - I know it's a mess, please help me clean it up.

What can I do to get the ethernet internet distributed through the 1841 to the school while keeping the same functionality as before?  The way it is now, we are not getting any kind of connection to the new ISP, only from the AT&T T1 line.

Running_config:

IRAH#show running-config

Building configuration...

Current configuration : 4510 bytes

!

version 12.4

no service pad

service tcp-keepalives-in

service tcp-keepalives-out

service timestamps debug datetime msec localtime show-timezone

service timestamps log datetime msec localtime show-timezone

service password-encryption

service sequence-numbers

!

hostname IRAH

!

boot-start-marker

boot-end-marker

!

logging buffered 51200 debugging

logging console critical

enable secret 5 ***********************************

!

no aaa new-model

!

resource policy

!

clock timezone PCTime -7

mmi polling-interval 60

no mmi auto-configure

no mmi pvc

mmi snmp-timeout 180

ip subnet-zero

no ip source-route

ip cef

!

!

ip tcp synwait-time 10

no ip dhcp use vrf connected

ip dhcp excluded-address 192.168.0.1

!

ip dhcp pool sdm-pool1

   import all

   network 192.168.0.0 255.255.255.0

   dns-server 192.168.0.5 8.8.8.8

   default-router 192.168.0.1

!

!

no ip bootp server

ip domain name irah.com

ip name-server 192.168.0.5

ip name-server 8.8.8.8

!

username administrator privilege 15 secret 5 **********************************

!

!

!

interface FastEthernet0/0

description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-FE 0$$ES_LAN$$FW_INSIDE$

ip address 192.168.0.1 255.255.255.0

no ip proxy-arp

ip nat inside

ip route-cache flow

duplex auto

speed auto

no mop enabled

!

interface FastEthernet0/1

description GRTI Ethernet

ip address ***.***.94.86 255.255.255.252

ip access-group 110 out

no ip redirects

no ip unreachables

no ip proxy-arp

ip nat outside

ip route-cache flow

duplex auto

speed auto

no mop enabled

!

interface Serial0/0/0

description AT&T Internet

ip address ***.***.145.22 255.255.255.252

ip access-group 110 out

ip nat outside

encapsulation ppp

ip route-cache flow

!

ip classless

ip route 0.0.0.0 0.0.0.0 Serial0/0/0

!

ip http server

ip http authentication local

ip http timeout-policy idle 60 life 86400 requests 10000

ip nat inside source list 1 interface Serial0/0/0 overload

ip nat inside source list 11 interface Serial0/0/0 overload

ip nat inside source static 192.168.0.5 ***.***.145.115

ip nat inside source static 192.168.0.6 ***.***.145.116

ip nat inside source static 192.168.0.7 ***.***.145.117

!

logging trap debugging

access-list 1 remark INSIDE_IF=FastEthernet0/0

access-list 1 remark SDM_ACL Category=2

access-list 1 permit 192.168.0.0 0.0.0.255

access-list 110 permit ip any any

access-list 110 permit tcp any any eq www

access-list 110 permit tcp any any eq ftp

access-list 110 permit tcp any any eq pop3

access-list 110 permit tcp any any eq echo

access-list 110 permit tcp any any eq smtp

access-list 110 permit tcp any any eq domain

access-list 110 permit tcp any any eq 3389

access-list 110 permit udp any any eq echo

access-list 110 permit udp any any eq tftp

access-list 110 permit udp any any eq domain

access-list 110 permit tcp host ***.***.145.125 any

access-list 110 permit udp host ***.***.145.125 any

access-list 110 permit tcp host ***.***.145.116 eq www any

access-list 110 permit tcp host ***.***.145.116 eq ftp any

access-list 110 permit tcp host ***.***.145.116 eq ftp-data any

access-list 110 permit tcp host ***.***.145.116 eq 3389 any

access-list 110 permit tcp host ***.***.145.116 eq smtp any

access-list 110 permit tcp host ***.***.145.117 eq 3389 any

access-list 110 permit tcp host ***.***.145.115 eq 3389 any

access-list 110 permit tcp host ***.***.145.115 eq 3389 0.0.0.5 255.255.255.0

no cdp run

!

control-plane

!

banner exec ^C

% Password expiration warning.

-----------------------------------------------------------------------

Cisco Router and Security Device Manager (SDM) is installed on this device and

it provides the default username "cisco" for  one-time use. If you have already

used the username "cisco" to login to the router and your IOS image supports the

"one-time" user option, then this username has already expired. You will not be

able to login to the router with this username after you exit this session.

It is strongly suggested that you create a new username with a privilege level

of 15 using the following command.

username <myuser> privilege 15 secret 0 <mypassword>

Replace <myuser> and <mypassword> with the username and password you want to

use.

-----------------------------------------------------------------------

^C

banner login ^CAuthorized access only!

Disconnect IMMEDIATELY if you are not an authorized user!^C

!

line con 0

login local

line aux 0

line vty 0 4

privilege level 15

login local

transport input telnet

line vty 5 15

privilege level 15

login local

transport input telnet

!

scheduler allocate 4000 1000

end

15 Replies 15

I am glad that it is working now and that the problem turned out to be a configuration issue on the ISP side. Thank you for posting back to the forum to update us and let us know that it is working now. Thank you for using the rating system to mark this question as answered.

HTH

Rick

HTH

Rick
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