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Cisco ASA Interface Configuration

Posted on 2015-01-28
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Last Modified: 2015-02-16
Hello Experts,

Can someone let me know if its possible to configure interfaces on ASA with same named interface e.g.

interface Ethernet0/1
 description Connection to Inside A1 LAN
nameif inside
 security-level 100
 ip address 192.168.170.1 255.255.255.0

interface Ethernet0/2
 description Connection to Inside B2 LAN
nameif inside
 security-level 100
 ip address 10.25.0.1 255.255.255.0

Will the above work?

Regards
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Question by:cpatte7372
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15 Comments
 
LVL 21

Expert Comment

by:netcmh
ID: 40575155
Is your end goal to permit traffic between the two interfaces with the same security level? Please read http://3cvguy.com/cisco-asa/

If it's just for aesthetics, I don't think you can name 2 interfaces the same name.
0
 

Author Comment

by:cpatte7372
ID: 40575160
Hi netcmh

Thanks for responding

Is your end goal to permit traffic between the two interfaces with the same security level?

Yes it is.

Is it possible?

Regards
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LVL 21

Accepted Solution

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netcmh earned 2000 total points
ID: 40575168
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Author Comment

by:cpatte7372
ID: 40575182
Netcmh

I followed the instructions in the link but it didn't work, see below;

tina-asa(config)# same-security-traffic permit inter-interface
tina-asa(config)# int eth 0/2
tina-asa(config-if)# nameif inside
ERROR: Name "inside" has been assigned to interface Ethernet0/1
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LVL 21

Expert Comment

by:netcmh
ID: 40575185
You cannot name both the interfaces the same name. What is your requirement for doing this?
0
 

Author Comment

by:cpatte7372
ID: 40575202
Netcmh,

OK, I'm getting confused here:

ASA-CLI (config) # static (server,storage) 192.168.0.0 255.255.255.0 192.168.0.0 255.255.255.0

ASA-CLI (config) # static (storage,server) 192.168.2.0 255.255.255.0 192.168.2.0 255.255.255.0

Is (server,storage) the nameif for server and storage?
0
 

Author Comment

by:cpatte7372
ID: 40575215
I'm getting the error here:

static (inside,newlan) 192.168.170.0 255.255.255.0 192.168.170.0 255.255.255.0
                                                      ^
0
 

Author Comment

by:cpatte7372
ID: 40575219
You cannot name both the interfaces the same name. What is your requirement for doing this?

I have changed it on the second interface to 'newlan'

But I can't get the static to work, see above
0
 

Author Comment

by:cpatte7372
ID: 40575244
Any thoughts?
0
 
LVL 50

Expert Comment

by:Don Johnston
ID: 40575350
If both interfaces have the same security level (but different names) and you have "same-security-traffic permit inter-interface" enabled then you should be able to move traffic between those interfaces.

Is that not working?
0
 

Author Comment

by:cpatte7372
ID: 40575357
Hi Don,

Apparently, I need the following configuration to make it work:

static (inside,newlan) 192.168.170.0 255.255.255.0 192.168.170.0 255.255.255.0

But it still doesn't work
0
 
LVL 50

Expert Comment

by:Don Johnston
ID: 40575362
You will also need:

static (newlan, static) 192.168.170.0 255.255.255.0 192.168.170.0 255.255.255.0
0
 
LVL 21

Expert Comment

by:netcmh
ID: 40575518
Sorry, I was away on a meeting. Were you able to get the traffic flowing?
0
 

Author Closing Comment

by:cpatte7372
ID: 40608049
Cheers
0
 
LVL 21

Expert Comment

by:netcmh
ID: 40612074
Thanks for the grade. Good luck.
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