Internal-Data 0/3 - ASA 5512

[GRANT3779]

Hello,

I have a 5512-X in my home lab and recently just set it up in transparent mode and installed FirePOWER on the SSD.

I have just noticed the following and wondering what this is, and why it has the addressing it has -

UK-ROB-5512X-01# sh int ip bri
Interface IP-Address OK? Method Status Protocol
GigabitEthernet0/0 10.44.70.6 YES unset up up
GigabitEthernet0/1 10.44.70.6 YES unset up up
GigabitEthernet0/2 unassigned YES unset administratively down down
GigabitEthernet0/3 unassigned YES unset administratively down down
GigabitEthernet0/4 unassigned YES unset administratively down down
GigabitEthernet0/5 unassigned YES unset administratively down down
Internal-Control0/0 127.0.1.1 YES unset up up
Internal-Data0/0 unassigned YES unset up up
Internal-Data0/1 unassigned YES unset up up
Internal-Data0/2 unassigned YES unset up up
Internal-Data0/3 169.254.1.1 YES unset up up
Management0/0 10.44.0.15 YES unset up up
BVI1 10.44.70.6 YES CONFIG up up

sh route

C 169.254.1.0 255.255.255.252 is directly connected, nlp_int_tap
L 169.254.1.1 255.255.255.255 is directly connected, nlp_int_tap

Any info that would help in understanding the above would be greatly appreciated.

[Shuhaib Thottathil]

Hi Grant,

ASA started using internal-data0/3 after cisco introduced FTD. This is a internal communication interface. The output which you are seeing in show route shouldn't be there you can consider this asa a cosmetic BUG. Please find the BUG details below

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvb40417