02-02-2022 09:06 AM
So I currently have 2 sites, that can ping perfectly within their own sites. I'm trying to get dynamic NAT working, but I still cant ping across the WANs, but the WANs can ping one another. I've tried many different ways of trying to do it but I cannot get it to work. I was told I've to use a router which acts as the Internet, rather than using a cloud.
This is my first time asking for help, so just let me know if I need to add any extra information or anything, thank you!
Left router config:
Building configuration... Current configuration : 1601 bytes ! version 12.2 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname Router ! ! ! ! ! ! ! ! no ip cef no ipv6 cef ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface GigabitEthernet0/0 no ip address ip nat inside duplex auto speed auto ! interface GigabitEthernet0/0.10 encapsulation dot1Q 10 ip address 10.100.0.1 255.255.255.128 ! interface GigabitEthernet0/0.20 encapsulation dot1Q 20 ip address 10.100.0.129 255.255.255.224 ! interface GigabitEthernet0/0.30 encapsulation dot1Q 30 ip address 10.100.0.161 255.255.255.224 ! interface GigabitEthernet0/0.40 encapsulation dot1Q 40 ip address 10.100.0.193 255.255.255.224 ! interface GigabitEthernet0/0.50 encapsulation dot1Q 50 ip address 10.100.0.225 255.255.255.224 ! interface GigabitEthernet0/0.60 encapsulation dot1Q 60 ip address 10.100.1.1 255.255.255.240 ! interface GigabitEthernet0/0.70 encapsulation dot1Q 70 ip address 10.100.1.17 255.255.255.248 ! interface FastEthernet1/0 no ip address duplex auto speed auto shutdown ! interface Serial2/0 ip address 87.44.50.2 255.255.255.252 ip nat outside ! interface Serial3/0 no ip address clock rate 2000000 shutdown ! interface FastEthernet4/0 no ip address shutdown ! router ospf 1 log-adjacency-changes network 87.44.50.0 0.0.0.3 area 1 network 87.44.50.4 0.0.0.3 area 1 ! ip nat inside source list 1 interface GigabitEthernet0/0 overload ip classless ! ip flow-export version 9 ! ! access-list 1 permit 10.100.0.0 0.0.255.255 ! ! ! ! ! ! line con 0 ! line aux 0 ! line vty 0 4 login ! ! ! end
Right Router config:
Building configuration... Current configuration : 1523 bytes ! version 12.2 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname Belfast ! ! ! ! ! ! ! ! no ip cef no ipv6 cef ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface GigabitEthernet0/0 no ip address ip nat inside duplex auto speed auto ! interface GigabitEthernet0/0.10 encapsulation dot1Q 10 ip address 10.100.2.1 255.255.255.224 ! interface GigabitEthernet0/0.20 encapsulation dot1Q 20 ip address 10.100.2.33 255.255.255.224 ! interface GigabitEthernet0/0.30 encapsulation dot1Q 30 ip address 10.100.2.65 255.255.255.224 ! interface GigabitEthernet0/0.40 encapsulation dot1Q 40 ip address 10.100.2.97 255.255.255.240 ! interface GigabitEthernet0/0.50 encapsulation dot1Q 50 ip address 10.100.2.113 255.255.255.248 ! interface GigabitEthernet0/0.60 encapsulation dot1Q 60 ip address 10.100.2.121 255.255.255.248 ! interface FastEthernet1/0 no ip address duplex auto speed auto shutdown ! interface Serial2/0 no ip address clock rate 2000000 shutdown ! interface Serial3/0 ip address 87.44.50.6 255.255.255.252 ip nat outside clock rate 2000000 ! interface FastEthernet4/0 no ip address shutdown ! router ospf 1 log-adjacency-changes network 87.44.50.0 0.0.0.3 area 1 network 87.44.50.4 0.0.0.3 area 1 ! ip nat inside source list 1 interface GigabitEthernet0/0 overload ip classless ! ip flow-export version 9 ! ! access-list 1 permit 10.100.0.0 0.0.255.255 ! ! ! ! ! ! line con 0 ! line aux 0 ! line vty 0 4 login ! ! ! end
Central Router:
Building configuration... Current configuration : 919 bytes ! version 12.2 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname Router ! ! ! ! ! ! ! ! ip cef no ipv6 cef ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface FastEthernet0/0 no ip address duplex auto speed auto shutdown ! interface FastEthernet1/0 no ip address duplex auto speed auto shutdown ! interface Serial2/0 ip address 87.44.50.1 255.255.255.252 ip nat outside clock rate 2000000 ! interface Serial3/0 ip address 87.44.50.5 255.255.255.252 ip nat outside ! interface FastEthernet4/0 no ip address shutdown ! interface FastEthernet5/0 no ip address shutdown ! router ospf 1 log-adjacency-changes network 87.44.50.0 0.0.0.3 area 1 network 87.44.50.4 0.0.0.3 area 1 ! ip classless ! ip flow-export version 9 ! ! access-list 1 permit 10.100.0.0 0.0.255.255 ! ! ! ! ! ! line con 0 ! line aux 0 ! line vty 0 4 login ! ! ! end
Solved! Go to Solution.
02-02-2022 11:24 AM
Hello,
attached the revised file, with the OSPF and NAT fixed. Fixed in that case means: configured correctly on both the Calow and the Belfast router, but I think it is one of the quirks of Packet Tracer that it does not work end to end when NAT is configured on both sides.
What instructions are you following ?
02-02-2022 09:22 AM
Hello,
you need to add 'ip nat inside' to each subinterface:
interface GigabitEthernet0/0.10
encapsulation dot1Q 10
ip address 10.100.0.1 255.255.255.128
--> ip nat inside
!
interface GigabitEthernet0/0.20
encapsulation dot1Q 20
ip address 10.100.0.129 255.255.255.224
--> ip nat inside
!
interface GigabitEthernet0/0.30
encapsulation dot1Q 30
ip address 10.100.0.161 255.255.255.224
--> ip nat inside
!
interface GigabitEthernet0/0.40
encapsulation dot1Q 40
ip address 10.100.0.193 255.255.255.224
--> ip nat inside
!
interface GigabitEthernet0/0.50
encapsulation dot1Q 50
ip address 10.100.0.225 255.255.255.224
--> ip nat inside
!
interface GigabitEthernet0/0.60
encapsulation dot1Q 60
ip address 10.100.1.1 255.255.255.240
--> ip nat inside
!
interface GigabitEthernet0/0.70
encapsulation dot1Q 70
ip address 10.100.1.17 255.255.255.248
--> ip nat inside
02-02-2022 09:31 AM
I still seem to be having the same issue as before. I can ping from the PCs from the Carlow side to the Serial2/0 on the Carlow Router (87.44.50.2) but cannot ping the one on the central router (87.44.50.1) on the same serial, if that helps?
02-02-2022 09:50 AM
Hello,
post your zipped Packet Tracer project (.pkt) file...
02-02-2022 09:52 AM
02-02-2022 11:24 AM
Hello,
attached the revised file, with the OSPF and NAT fixed. Fixed in that case means: configured correctly on both the Calow and the Belfast router, but I think it is one of the quirks of Packet Tracer that it does not work end to end when NAT is configured on both sides.
What instructions are you following ?
02-05-2022 05:44 PM
That has worked perfectly! I completely forgot about the router ids, thanks a million for the help!
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