09-07-2009 10:18 AM - edited 03-04-2019 05:58 AM
I have a simple setup that I am experimenting with. BUT the router seems to route perfectly and then not. I have looked at this config until I can't see straight any more. Basically a laptop on fa8 ping the same location, works for a while and then doesnt. No change. The router can ping every time from the telnet. Any ideas?
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ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
!
interface FastEthernet0
description OUTSIDE-WAN0
ip address 66.x.x.x 255.255.255.248
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
!
interface FastEthernet1
description OUTSIDE-WAN1
ip address dhcp client-id FastEthernet1
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
!
interface FastEthernet8
description Connector LAN to ASA
switchport access vlan 2
!
interface FastEthernet9
description Local Access from 10.215 network
!
interface Vlan1
ip address 10.215.81.2 255.255.255.0
ip virtual-reassembly
!
interface Vlan2
description $FW_INSIDE$
ip address 10.215.98.1 255.255.255.0
ip nat inside
ip virtual-reassembly
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 FastEthernet1
ip http server
ip http authentication local
ip http secure-server
!
ip nat inside source list NAT2 interface FastEthernet1 overload
!
ip access-list extended NAT2
permit tcp any any
permit udp any any
permit icmp any any
permit ip any any
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09-07-2009 11:10 AM
Hi,
What do you mean by " labtop in f0/8 ping same location and stops " what is the same location?
Do you have access to the internet?
Does nating works fine?
Does your router recieve IP address through DHCP?
Apart from that , your config looks Ok,
HTH
Mohamed
09-07-2009 11:12 AM
Hello Mark.
Are you sure it's the router at fault? When the pings stop does the PC still have connectivity to other services? If it is just ping that is affected then it could be a firewall or host dropping the pings for security after a limit is reached.
You could configure IP accounting to see if your ping packet count matches what the router says it has forwarded.
Simon
09-07-2009 12:22 PM
The laptop is connected to a small switch along with the 1811 on the FastEthernet8 port.
The laptop can ping the 1811 at all times.
The problem seems as though the 1811 is forgetting how to route, and then it starts working again.
I ping yahoo.com for example from the 1811 and all is ok. From the laptop, it works and then it doesnt. When the laptop doesnt ping, it still does ping the 1811 and the 1811 still can ping the internet. just somehow the routes are not working?!
Really strange
09-07-2009 02:18 PM
Mark
I have seen some strange problems when NAT is configured with access lists that specify permit any any. I suggest that you change access list NAT2 from extended to standard and change the permit to:
permit 10.215.81.0 0.0.0 255
permit 10.215.98.0 0.0.0.255
Give this a try and let us know if the behavior changes.
HTH
Rick
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