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Problem with 1841

Answered Question
Jul 6th, 2010
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I m having a problem with my cisco 1841.

From the router i can ping external ip(4.2.2.2 or 187.103.200.1). but a user from vlan 11 can ping router wan interface 187.103.200.2 and default gw 172.25.11.1, but can't ping external ip.

Correct Answer by Chetan Kumar Ress about 7 years 1 month ago

Hi Vitor


Can you remove ip nat inside from Physical interface & configure the same one under all subinteface.


Can you post output of sh ver (IOS Ver.)


Regards

Chetan Kumar

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Overall Rating: 3.3 (3 ratings)
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Reza Sharifi Tue, 07/06/2010 - 18:40
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  • Cisco Designated VIP,

    2017 LAN

Hi Vitor,


Looking at your config,  is vlan 11 supposed be actually a /30 subnet or is it a typo?


interface FastEthernet0/1.11
description qi
encapsulation dot1Q 11
ip address 172.25.11.1 255.255.255.252


Reza

vitorssouza Tue, 07/06/2010 - 19:53
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Reza,


it is right, because for this vlan there is only 1 valid ip, for the user.

wang baojun Tue, 07/06/2010 - 20:13
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Vitor,


the config seem no problem ,you can try done the following operation.



interface FastEthernet0/1.11

description qi

encapsulation dot1Q 11

ip address 172.25.11.1 255.255.255.252

ip nat inside

vitorssouza Wed, 07/07/2010 - 10:53
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Wang,


Still not working, i think  it is something on access-list.

Correct Answer
Chetan Kumar Ress Wed, 07/07/2010 - 12:07
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  • Silver, 250 points or more

Hi Vitor


Can you remove ip nat inside from Physical interface & configure the same one under all subinteface.


Can you post output of sh ver (IOS Ver.)


Regards

Chetan Kumar

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