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1511
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10
Helpful
9
Replies

Help me ping GNS to my computer

hfakoor222
Spotlight
Spotlight

I want any advice to get connectivity between the two, I can't seem to make it work. I will post my setup below.

 

Here is my cloud 

 

Pic 1.png

FAN is loopback adapter, and VM network Adapter is also defined on my VMWARE connections

 

Here are conenctions defined on VMWARE

 

 

Picture 2.png

 

Here is my FAN loopback adapter

 

Picture3.png

 

 

 

My server preferences

 

 

Picture 1.png

 

 

 

 

Firewall status

 

 

Picture 1.png

 

 

 

 

 

R1 cannot ping loopback FAN

Pic2.png

 

 

 

 

R1's running-config


Current configuration : 1134 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
no ip icmp rate-limit unreachable
ip cef
!
!
!
!
no ip domain lookup
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
archive
log config
hidekeys
!
!
!
!
ip tcp synwait-time 5
!
!
!
!
interface FastEthernet0/0
ip address 1.0.0.1 255.255.255.0
duplex auto
speed auto
!
interface Serial0/0
no ip address
shutdown
clock rate 2000000
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet1/0
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet2/0
no ip address
shutdown
duplex auto
speed auto
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
!
no cdp log mismatch duplex
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
login

 

 

 

 

1 Accepted Solution

Accepted Solutions

Ping Internet from what? what is source IP when you ping Internet?  Normally you will need extra settings to ping Internet or your Internet Cable/DSL modem/router.  First of all, ISP may block your pings. your router IP is Public IP of 1.0.0.x which belongs to someone on the Internet;  2nd, Cable/DSL modem/router would need NAT set up and a route back to source of ping. Any Private range IP needs NAT set up and ISP device blocks all Private ranges of IP by default.  How do you get to Internet?  What is goal of this lab ? (as your router has basic set up without default route and NAT/DHCP setups.) 

 

Regards, ML
**Please Rate All Helpful Responses **

View solution in original post

9 Replies 9

hfakoor222
Spotlight
Spotlight

R2 cannot ping either to Loopback 2

 

 

I am asking for any advice

Hello,

 

--> R1 cannot ping loopback FAN

 

Where and what is loopback FAN ? Where and what is Loopback 2 ? Post a diagram of your topology, as well as the full running configurations of all routers in that topology.

Oh hi I just saw this

 

 

FAN was a 2nd loopback adapter to which I removed

 

To keep things simple I've connected to 1 Loopback and the problem persists

 

 

I can ping into GNS and perform TFT transfers but I cannot ping out of GNS

 

Picture1.png

Heres my loopback

 

3.png

 

Here is the router configuration

 

 

 

 

ersion 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
no ip icmp rate-limit unreachable
ip cef
!
!
!
!
no ip domain lookup
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
archive
log config
hidekeys
!
!
!
!
ip tcp synwait-time 5
!
!
!
!
interface FastEthernet0/0
ip address 1.0.0.2 255.255.255.0
duplex auto
speed auto
!
interface Serial0/0
no ip address
shutdown
clock rate 2000000
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet1/0
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet2/0
no ip address
shutdown
duplex auto
speed auto
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
!
no cdp log mismatch duplex
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
login
!
!
end

 

 

 

Any help is welcome

 

 

 

 

 

 

 

 

hfakoor222
Spotlight
Spotlight

It seems line I am able to ping from my localhost CLI to both my routers but not the other way around

 

 

 

Pic1.png

hfakoor222
Spotlight
Spotlight

I can also copy the startup-config through TFTP

 

Picture1.png

 

Here is my firewall settings, however private firewall iis turned off

 

3.png

Martin L
VIP
VIP

 

Did u Try disable Firewall on Guest/Public network ?  Try it  just for test.

 

Regards, ML
**Please Rate All Helpful Responses **

After taking off public firewall I am now able to ping my loopback adapter of 1.0.0.2 and now I am attempting to ping to the internet which is so far no working, I will post up soon the various methods I tried to ping to internet. As of now I can ping loopback adapter, I cannot ping my localhost of 192.168.1.151, I can ping from my localhost to inside GNS3 to my router.

 

I will first attemp to modify various gateways and then post up my findings.

Ping Internet from what? what is source IP when you ping Internet?  Normally you will need extra settings to ping Internet or your Internet Cable/DSL modem/router.  First of all, ISP may block your pings. your router IP is Public IP of 1.0.0.x which belongs to someone on the Internet;  2nd, Cable/DSL modem/router would need NAT set up and a route back to source of ping. Any Private range IP needs NAT set up and ISP device blocks all Private ranges of IP by default.  How do you get to Internet?  What is goal of this lab ? (as your router has basic set up without default route and NAT/DHCP setups.) 

 

Regards, ML
**Please Rate All Helpful Responses **

hfakoor222
Spotlight
Spotlight

So after changing default gateway a few times of Loopback adapter I cannot ping to internet

 

I changed ip of loopback adapter to 172.55.5.1 for testing and it works to ping from the router in GNS to the Loopback

3.png

 

 

I can ping from localhost CLI to the router

 

 

3.png

 

All firewalls turned off

 

 

running through my mind I'm trying to think if a running service may be stopping my pings to internet?

 

I will try to restart system in a bit after this video tutorial, and see if it works.

 

In the meantime I am open to suggestions.

 

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