10-13-2021 12:24 PM
Below is my code I've ran throughout my lab. I have 3 routers, 2 laptops, a server, and a switch. I'm trying to currently configure Dynamic NAT on router 1 so I can ping 99.98.97.130 which is router 3 from laptop 1. I also posted an attachment of a picture of what my diagram currently looks like for further explanation.
Svoboda_RTR_01#sh run
Building configuration...
Current configuration : 1149 bytes
!
version 15.4
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Svoboda_RTR_01
!
!
!
!
!
!
!
!
no ip cef
no ipv6 cef
!
!
!
!
!
!
!
!
!
!
!
!
spanning-tree mode pvst
!
!
!
!
!
!
interface GigabitEthernet0/0/0
no ip address
ip nat outside
duplex auto
speed auto
!
interface GigabitEthernet0/0/1
ip address 172.16.1.1 255.255.255.0
ip nat inside
duplex auto
speed auto
!
interface GigabitEthernet0/0/2
no ip address
duplex auto
speed auto
!
interface Serial0/2/0
ip address 99.98.97.2 255.255.255.128
ip nat inside
clock rate 2000000
!
interface Serial0/2/1
no ip address
clock rate 2000000
!
interface Vlan1
no ip address
shutdown
!
ip nat pool Svoboda_NAT_Pool 99.98.97.2 99.98.97.128 netmask 255.255.255.0
ip nat inside source list 1 pool Svoboda_NAT_Pool
ip nat inside source list 20 interface Serial0/2/0 overload
ip classless
!
ip flow-export version 9
!
!
access-list 1 permit 0.0.0.0 255.255.255.0
access-list 20 permit 172.16.1.0 0.0.0.255
access-list 20 permit 10.0.0.0 0.0.0.255
!
!
!
!
!
!
line con 0
!
line aux 0
!
line vty 0 4
login
!
!
!
end
Svoboda_RTR_01#
10-13-2021 11:49 PM
Hello,
it is a bit unclear what you are trying to accomplish. Which of the routers is router 3 ? Your network 99.98.97.0/26 is on the NAT inside, and your NAT pool has an IP address range from that same, inside network ?
interface Serial0/2/0
ip address 99.98.97.2 255.255.255.128
ip nat inside
clock rate 2000000
ip nat pool Svoboda_NAT_Pool 99.98.97.2 99.98.97.128 netmask 255.255.255.0
Can you post the zipped Packet Tracer project (.pkt) file ?
10-14-2021 12:09 AM - edited 10-14-2021 12:12 AM
Hello
If you have reachability between rtr1-rtr3 via rtr2 then you just need to amend your nat configuration on rtr1.
conf t
no access-list 1
no access-list 20
no ip nat pool Svoboda_NAT_Pool 99.98.97.2 99.98.97.128 netmask 255.255.255.0
no ip nat inside source list 1 pool Svoboda_NAT_Pool
access-list 20 permit 172.16.1.0 0.0.0.255
interface Serial0/2/0
no ip nat inside
ip nat outside
ip route 0.0.0.0 0.0.0.0 serial0/2/0 99.98.97.X < rtr2 nexthop address>
(note the default is on the assumption you dont have any other default route on R2/R3 pointing back to RTR1)
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