Forums.ATC.no
Teknisk => Generelt teknisk => Emne startet av: ATC på 27. ſeptember 2008, 18:24 pm
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Some but not all hosts on a network are able to access the Internet via a Cisco router running Network Address Translation (NAT)
When trying to ping/traceroute hosts on the internet, the router returns "host unreachable"
There are no access-lists, or the access-lists have been double checked to make sure they're not blocking valid traffic.
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Verify that overloading is enabled. Without using overload, the NAT mechanism will only be able to support N simultaneous hosts, where N is the size of your ip nat pool.
Since NAT can be configured in many ways I will not go into the full setup here, but instead show you a few variants of the config line in question.
Example 1:
"ip nat inside source route-map nonat pool mynatpool"
Use instead:
"ip nat inside source route-map nonat pool mynatpool overload"
Example 2:
"ip nat inside source list 10 pool mynatpool"
Use instead:
"ip nat inside source list 10 pool mynatpool overload"
Example 3:
"ip nat inside source route-map nonat interface Serial0"
Use instead:
"ip nat inside source route-map nonat interface Serial0 overload"