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arjun_4790
Beginner

nat

Hello,

I have been trying to configure nat in the cisco 2821 router but I'm getting memory full, why am I getting and how to resolve it.

8 REPLIES 8
Giuseppe Larosa
Hall of Fame Master

Hello @arjun_4790 ,

post your current configuration just hide public IP addresses and passwords

 

typical setup

 

!internal side

interface VLAN 10

ip addresss 192.168.10.1 255.255.255.0

ip nat inside

!

 

! WAN side

interface WAN

ip address x.x.x.x 255.255.255.252

ip nat outside

 

access-list 11 permit 192.168.10.0 0.0.0.255

 

ip nat inside source list 11 interface wan overload

 

check with show ip nat translations

 

Hope to help

Giuseppe

 

 

 

I cant, after putting ip nat inside command, running configuration has been deleting automatically

balaji.bandi
VIP Expert

 cisco 2821 router but I'm getting memory full,

Can you post exactly error you see on the router to understand the issue.

 

show run

show version

 

will help us here.

 

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hello,

I have attached a screenshot of that error which I have been getting.

Hello @arjun_4790 ,

remove NBAR from the configuration the first line of the screenshot says it is NBAR feature that is using a lot of memory.

 

Hope to help

Giuseppe

 

Hello @Giuseppe Larosa 

I have removed nbar from the interface but still, I have been getting same errors, could you go through the screenshots

Hello @arjun_4790 ,

I think you should disable NBAR on all interfaces of this router and then to get better help you should attach a text file with your configuration and a show version.

You can post the show version in a message

 

Hope to help

Giuseppe

 

As per the message when you doing that command, you see some NBAR related information (thinking may be causing issue)

 

that is the reason we have requested.

 

show run

show version

BB

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