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ASA 5505Trunking port issue

frazer001
Level 1
Level 1

Hello everyone,

I've recently added 5 vlans into my network and turned my eth0/1 port which goes to my switch into a trunk port. Since this change I haven't been able to get out to the internet at all. From my switch I am able to ping all of the vlan IP addresses assigned to the ASA, and vice-versa. I have a feeling that the problem maybe with the ACLs, but I don't know exactly what to look for. I've attached my configuration file for all of you to look at. Any help is much appreciated.

1 Accepted Solution

Accepted Solutions

First of all, remove the command switchport access vlan 4 from the interface

interface Ethernet0/1
 switchport access vlan 4
 switchport trunk allowed vlan 4,10,13-14,50-51
 switchport mode trunk

Also I notice you do not have any NAT statement configured, please add the following command:

object network obj_any
  nat (any,outside) dynamic interface

Though you should have specific dynamic NAT for each network, this is a quick and easy solution to configure NAT.

Try making these changes and then test, and let us know how it goes.

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Please remember to select a correct answer and rate helpful posts

View solution in original post

4 Replies 4

What license do you have installed on your ASA (show version)?  If you have the base license then you will need to uprade to the security plus license.

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Please remember to select a correct answer and rate helpful posts

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Please remember to select a correct answer and rate helpful posts

Hello Marius,

The device has the security plus license

First of all, remove the command switchport access vlan 4 from the interface

interface Ethernet0/1
 switchport access vlan 4
 switchport trunk allowed vlan 4,10,13-14,50-51
 switchport mode trunk

Also I notice you do not have any NAT statement configured, please add the following command:

object network obj_any
  nat (any,outside) dynamic interface

Though you should have specific dynamic NAT for each network, this is a quick and easy solution to configure NAT.

Try making these changes and then test, and let us know how it goes.

--

Please remember to select a correct answer and rate helpful posts

--
Please remember to select a correct answer and rate helpful posts

Thank you Marius, those 2 commands did the trick.

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