10-03-2008 09:24 AM - edited 03-06-2019 01:44 AM
I have a 1841 as a router with dhcp server enable. sometimes the LAN workstations can't browse any internet site but after rebooting the workstation everything works fine. I would like to know if it could be a mistake configuring the router.
Here is the configuration:
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
enable secret xxx
enable password xxxxxxx
!
no aaa new-model
!
resource policy
!
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 192.168.0.151 192.168.0.254
ip dhcp excluded-address 192.168.0.1 192.168.0.129
!
ip dhcp pool sdm-pool1
network 192.168.0.0 255.255.255.0
default-router 192.168.0.254
dns-server 200.xx.xx.115 200.xx.xx.6
!
!
no ip ips deny-action ips-interface
ip name-server 200.xx.xx.115
ip name-server 200.xx.xx.6
interface FastEthernet0/0
description $ETH-LAN$
ip address 192.168.0.254 255.255.255.0
ip nbar protocol-discovery
ip flow ingress
ip flow egress
ip nat inside
ip virtual-reassembly
speed 100
full-duplex
no mop enabled
!
interface FastEthernet0/1
description $ETH-WAN$
ip address 1XX.XXX.XXX.2 255.255.255.0
ip nbar protocol-discovery
ip flow ingress
ip flow egress
ip nat outside
ip virtual-reassembly
duplex auto
speed 100
!
ip classless
ip route 0.0.0.0 0.0.0.0 1XX.XXX.XXX.1 permanent
!
ip http server
ip http authentication local
ip http secure-server
ip nat inside source list 1 interface FastEthernet0/1 overload
!
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
10-03-2008 09:32 AM
Javier
I have looked through the config and I do not see anything in the config that would cause the symptoms that you describe. And the symptoms do not sound like a router problem. If the workstation has problems in accessing, and you reboot the workstation and it works without changing anything in the router, then I think it is not likely to be a problem in the router.
At the time when the workstation has a problem have you used ipconfig to check the IP address, subnet mask, and default gateway of the workstation? Have you checked to see if the workstation can accesss its own gateway? I would suggest these as steps in investigating the problem.
HTH
Rick
10-03-2008 09:54 AM
Rick, thanks for your post. the problem with the workstation is ramdon, when it happens i check the ipconfig and everything looks ok. pinging the LAN router interface is ok, pinging the DNS servers I don't get response. But from the router i ping the DNS getting response. is rarely, as you said the configuration looks fine.
The only different thing is that my wan interface is connect to another router (ISP) I will ask the ISP to provide me a direct Ethernet connection.
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