Packet Tracer: Router swaps Destination IP address with Source IP address

[YJJcoolcool]

When I try to access the webserver from PC7 (see screenshot), I am given a "server reset connection" error. Upon checking the packet, I observed that the router RTR-1 is swapping the Destination IP address with the Souce IP address. Is there a way to fix this via configuration? And why is it happening?

[balaji.bandi]

we do not have any visibility of the router config - so suggest to read this thread :

https://community.cisco.com/t5/routing/packet-tracer-how-i-fix-quot-server-reset-connection-quot-error/td-p/4070963

[Georg Pauwen]

Hello,

post the zipped Packet Tracer project (.pkt) file...

[Martin L]

you can attach PT file in a zip format here or copy and paste router config

Regards, ML
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[YJJcoolcool]

Hi, attached is the zipped packet tracer.

Here is the router config when I run the show run command (removed ! to reduce length):

Current configuration : 907 bytes
version 15.4
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
hostname Router
no ip cef
no ipv6 cef
spanning-tree mode pvst
interface GigabitEthernet0/0/0
description Link to MSW-1
ip address 203.0.111.1 255.255.255.252
duplex auto
speed auto
interface GigabitEthernet0/0/1
no ip address
duplex auto
speed auto
shutdown
interface Serial0/1/0
description Link to Internet
ip address 203.0.113.100 255.255.255.0
interface Serial0/1/1
no ip address
clock rate 2000000
shutdown
interface Vlan1
no ip address
shutdown
ip classless
ip route 0.0.0.0 0.0.0.0 Serial0/1/0
ip route 0.0.0.0 0.0.0.0 203.0.111.2
ip route 203.0.113.0 255.255.255.0 209.165.201.1
ip flow-export version 9
line con 0
login
line aux 0
line vty 0 4
no login
end

[Georg Pauwen · Accepted solution]

Hello,

you made a simple typo. 

The serial interface Serial0/1/0 of your router RTR-1 and the web server have the same IP address:

interface Serial0/1/0
description Link to Internet
ip address 203.0.113.100 255.255.255.0

If you change the IP address of the web server to 203.0.113.101, the connection works. Attached the revised file.