Cisco Routing problem please help

killkom

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Hi Guys

I need some help

I have a routing problem with a cisco 1800 Router

Its quite a simple setup but my Cisco skills are not that good and I don't know how to solve this

I have a internet line and the ISP put the router in its a oneaccess one150 router.

I take a line from that router switch port to a Cisco 1800 Router Ethernet 0/1

I then take another line from the Cisco 1800 Ethernet 0/0 and connect it to a Cisco 2950 24 port Switch

I have cleared the config on the switch so its just a plain layer 2 switch with no Vlans ans so on

I can ping the ethernet 0/0 and ethernet 0/1 ports from the 2950 switch no problem

The problem I am having is I cannot ping the ISp's router through the switch I can ping the ethernet 0/1 of the router but not the ISP's Router

I can ping the ISP's router from the telnet interface of the 1800 Router but not if I am on the 2950 Switch

Here is my config I have changed the ip's to fake ones but it should give the just of what I am doing. Please tell me if there is anything that could be causing this problem.

Building configuration...

Current configuration : 2693 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname router
!
boot-start-marker
boot-end-marker
!
logging buffered 51200 warnings
!
no aaa new-model
!
resource policy
!
clock timezone gmt 2
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
ip subnet-zero
ip cef
!
!
no ip dhcp use vrf connected
ip dhcp excluded-address 10.0.1.0 10.0.1.99
!
ip dhcp pool gwpool1
import all
network 10.0.1.0 255.255.255.0
default-router 10.0.1.1
dns-server 41.160.0.36 41.160.0.37
domain-name domain
!
!
ip domain name yourdomain.com
ip name-server 41.160.0.36
ip name-server 41.160.0.37
!
!
interface FastEthernet0/0
ip address 10.0.1.1 255.255.255.0
ip nat inside
ip route-cache flow
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 41.180.35.34 255.255.255.248
ip nat outside
ip route-cache flow
duplex auto
speed auto
!
interface Serial0/0/0
no ip address
shutdown
clockrate 2000000
!
ip classless
ip route 0.0.0.0 0.0.0.0 41.180.35.33
ip flow-export source FastEthernet0/0
ip flow-export version 5
ip flow-export destination 10.0.1.40 2065
!
no ip http server
ip http access-class 23
ip http authentication local
ip http timeout-policy idle 60 life 86400 requests 10000
ip nat inside source list 160 interface FastEthernet0/1 overload
ip nat inside source static tcp 10.0.0.40 21 41.180.35.37 21 extendable
!
access-list 23 permit 10.0.1.0 0.0.0.255
snmp-server community public RO
snmp-server community private RW
!
control-plane
!
!
line con 0
login local
line aux 0
line vty 0 4
access-class 23 in
privilege level 15
login local
transport input telnet
line vty 5 15
access-class 23 in
privilege level 15
login local
transport input telnet
!
end
 
So it looks like this:

ISP<-->One150<-->Eth0/1_Cisco1800_Eth0/0<-->Cisco2950

What is the IP addresses of the One150 LAN & WAN (you can disguise wan address if you want a bit) sides?
Add a default route on the 2950 pointing to the Eth0/0 on the 1800 so long.
Post the output of sh ip route on the 1800 & 2950 here.

Why are you using two routers btw?
 
Last edited:
I actually sorted this out I pulled the 1800 router out and wiped the config and re-did it from scratch

The only thing I left out is the DHCP bit of the config the rest is the same and its working now

maybe it was some curruption on the Router config beats me its not a difficult config its just one of the problems that drive you a bit nuts

Thanks for the reply
 
Not important
but
You could make

clock timezone gmt 2 -- clock timezone SAST 2 ( South African Standard Time )
 
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