Can't reach internet from neighboring routers

[MapleMagician]

I am sure that I missing something simple in my understanding of how this works. I have connected my virtual CML lab to my network through the external connector. I am able to reach the internet from my edge router. However, for some reason I can not ping the gateway from any neighboring routers even though I have advertised the default route into OSPF.

I was experiencing this problem on a larger lab so I created a minimal one here to eliminate variables.

[MHM Cisco World]

you need to NAT traffic in R1 the NAT cloud know only the link between R1 and Cloud not beyond that 

MHM

[paul driver · Accepted solution]

Hello
apply the following and test again:

R1
int gig0/1
ip nat outside
int gig0/0
ip nat inside
access-list 1 permit 10.1.5.0 0.0.0.255
ip nat inside source list 1 interface gig0/1

[MapleMagician]

Nailed it. I guess I need to read up on NAT. I figured my ISP router was already doing that so I wouldn't have to. Thanks!

[MHM Cisco World]

I will go to sleep sad today, I already mention that in first comment 
LOL... just kidding 
glad your issue solved 

Have a nice day and good lab

MHM