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Trying to Map inside host tp Public IP - gets two Public IPs?

stownsend
Level 2
Level 2

I's like to map an Internal IP to an External IP. I have the Following code:

object network myserver_o

host 192.168.1.40

object network myserver_i

host 10.1.0.40

object network myserver_i

nat (hbg-inside,hbg-outside-192) static myserver_o

When I look at the xlate table I see the Following:

ASA# sh xlate local 10.1.0.40

106 in use, 208 most used

Flags: D - DNS, i - dynamic, r - portmap, s - static, I - identity, T - twice

NAT from hbg-inside:10.1.0.40 to hbg-outside-192:192.168.1.40

    flags s idle 3:17:00 timeout 0:00:00

NAT from hbg-inside:10.1.0.40 to hbg-outside-192:192.168.1.178 flags i idle 0:18:49 timeout 3:00:00

Where is the 192.168.1.178 Address coming from?

Thanks.

2 Replies 2

Luis Silva Benavides
Cisco Employee
Cisco Employee

Hi,

Thanks for posting. What does the rest of your NAT configuration states?

What happens if you run a clear xlate? it still appears on the xlate table?

If you do a show local-host 192:192.168.1.178 what do you see on the console?

Luis

Luis Silva

Another thing to note, the 192.168.1.x Subnet is not really 192.168.1.x, its out Public Address Space.

The only odd thing that I know of in our configuration is that we have two Class C Public Subnets that are on the ASA. Since you can only have one route out, be default devices get a address from the 192.168.1.x NAT Pool when they commnuicate out. If I want to Define a static NAT Mapping for a Server on the 2nd Classs C Subnet, it will have both a Inbound 172.16.1.x Static Address and an outbound 192.168.1.x Dynamic NAT address.

For instance this is our DNS Server:

jack# sh xlate local 10.1.0.14

62 in use, 208 most used

Flags: D - DNS, i - dynamic, r - portmap, s - static, I - identity, T - twice

NAT from hbg-inside:10.1.0.14 to hbg-outside-172:172.16.1.14

    flags s idle 0:00:16 timeout 0:00:00

NAT from hbg-inside:10.1.0.14 to hbg-outside-192:192.168.1.70 flags i idle 2:36:05 timeout 3:00:00

Here is the 'show run nat'

nat (hbg-inside,hbg-outside-192) source static LOCAL_NETWORK LOCAL_NETWORK destination static REMOTE_NETWORK REMOTE_NETWORK descrips

nat (hbg-inside,hbg-outside-192) source static NETWORK-SF NETWORK-SF destination static NETWORK-OLIVET NETWORK-OLIVET

nat (hbg-inside,hbg-outside-172) source dynamic any 172.16.1-NAT-POOL interface

nat (hbg-inside,hbg-outside-192) source dynamic any 192.168.1-NAT-POOL interface

nat (hbg-inside,hbg-outside-192) source static NETWORK-HBG NETWORK-HBG destination static NETWORK-MEINZ NETWORK-MEINZ

nat (hbg-inside,hbg-outside-204) source static LOCAL_NETWORK LOCAL_NETWORK destination static REMOTE_NETWORK REMOTE_NETWORK

!

object network vsvr-itsystems2_i

nat (hbg-inside,hbg-outside-172) static vsvr-itsystems2_o

object network vsvr-internet_i

nat (hbg-inside,hbg-outside-172) static vsvr-internet_o

object network hbgipoffice_i

nat (hbg-inside,hbg-outside-192) static hbgipoffice_o

object network sfipoffice_i

nat (hbg-inside,hbg-outside-192) static sfipoffice_o

Here is the "show local-host 192.168.1.178"

jack# show local-host 192.168.1.178

Interface management: 0 active, 0 maximum active, 0 denied

Interface hbg-inside: 60 active, 207 maximum active, 0 denied

Interface hbg-outside-192: 288 active, 9904 maximum active, 0 denied

Interface hbg-outside-204: 344 active, 1790 maximum active, 0 denied

Thanks!

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