topic asa-5512-x help with port forwarding using CLI or ASDM for mail server in Network Security

asa-5512-x help with port forwarding using CLI or ASDM for mail server

davedoggydogg — Tue, 12 Mar 2019 05:03:26 GMT

im sure the processes is pretty simple but im going crazy, all the videos and written tutorials i find are for older versions of ASDM or dont really apply to my situation or are just flat out confusing with the forum threads backtracking. I have a ASA 5512 and am just trying to forward the ports so i can use my exchange mail server. if someone can show me the steps to forward ports using CLI or ASDM 7.1.3 it would be greatly appreciated.

trying to forward ports: 2525 , 465, 110 , 143

puplic IP: 99.148.78.10 (not my real ip but just easier to work with)

ASA 5512 device: 10.10.50.50

Exchange mail server: 10.10.50.60

heres my conig:

ASA Version 9.1(2)
!
hostname ciscoasa
enable password 8Ry2YjIyt7RRXU24 encrypted
names
!
interface GigabitEthernet0/0
nameif outside
security-level 0
ip address 99.148.78.10 255.255.255.248
!
interface GigabitEthernet0/1
nameif inside
security-level 100
ip address 10.10.50.50 255.255.255.0
!
interface GigabitEthernet0/2
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet0/3
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet0/4
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet0/5
shutdown
no nameif
no security-level
no ip address
!
interface Management0/0
management-only
nameif management
security-level 100
ip address 192.168.110.1 255.255.255.0
!
ftp mode passive
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
object network smtptest
pager lines 24
logging asdm informational
mtu outside 1500
mtu inside 1500
mtu management 1500
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
no arp permit-nonconnected
!
nat (inside,outside) after-auto source dynamic any interface
route outside 0.0.0.0 0.0.0.0 99.148.78.14 1
timeout xlate 3:00:00
timeout pat-xlate 0:00:30
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
timeout floating-conn 0:00:00
dynamic-access-policy-record DfltAccessPolicy
user-identity default-domain LOCAL
http server enable
http 192.168.110.0 255.255.255.0 management
http 10.10.110.1 255.255.255.255 inside
http 10.10.110.0 255.255.255.0 inside
http 10.10.50.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart warmstart
crypto ipsec security-association pmtu-aging infinite
crypto ca trustpool policy
telnet timeout 5
ssh timeout 5
ssh key-exchange group dh-group1-sha1
console timeout 0
dhcpd address 192.168.110.2-192.168.110.254 management
dhcpd enable management
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum client auto
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect esmtp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect sip
inspect netbios
inspect tftp
inspect ip-options
!
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
Cryptochecksum:2c58621a4af5137c4fd19f7edae22e19
: end

Hi,Try this NAT:-object

Vibhor Amrodia — Tue, 11 Nov 2014 04:17:58 GMT

Hi,

Try this NAT:-

object network obj-10.10.50.60

host 10.10.50.60

nat (inside,outside) static 99.148.78.10 service tcp 2525 2525

object network obj-10.10.50.60-1

host 10.10.50.60

nat (inside,outside) static 99.148.78.10 service tcp 465 465

object network obj-10.10.50.60-2

host 10.10.50.60

nat (inside,outside) static 99.148.78.10 service tcp 110 110

object network obj-10.10.50.60-3

host 10.10.50.60

nat (inside,outside) static 99.148.78.10 service tcp 143 143

Make sure that you have corresponding ports allowed on the ACL for the private IP.

Thanks and Regards,

Vibhor Amrodia

thanks but i got a error, i

davedoggydogg — Tue, 11 Nov 2014 15:38:24 GMT

thanks but i got a error, i tried

object network obj-10.10.50.60

host 10.10.50.60

nat (inside,outside) static 99.148.78.10 service tcp 2525 2525

it and got the following error.

Result of the command: "nat (inside,outside) static 99.148.78.10 service tcp 2525 2525"

ERROR: Address 99.148.78.10 overlaps with outside interface address.
ERROR: NAT Policy is not downloaded

any ideas?

i dont know what i did, but

davedoggydogg — Tue, 11 Nov 2014 22:31:38 GMT

i dont know what i did, but between these extra commands i got the ports to forward :

object network obj-10.10.50.60-1

host 10.10.50.60

nat (inside,outside) static interface service tcp 80 80

object network INSIDE
nat (inside,outside) dynamic interface

object network MULTI-SERVER
nat (inside,outside) static interface service tcp 80 80

access-list Outside_access_in extended permit tcp any object MULTI-SERVER eq 80

access-group Outside_access_in in interface Outside

object network obj-10.10.50.60-2

host 10.10.50.60

nat (inside,outside) static interface service tcp 110 110

object network INSIDE
nat (inside,outside) dynamic interface

object network MULTI-SERVER
nat (inside,outside) static interface service tcp 110 110

access-list Outside_access_in extended permit tcp any object MULTI-SERVER eq 110

access-group Outside_access_in in interface Outside

object network obj-10.10.50.60-3

host 10.10.50.60

nat (inside,outside) static interface service tcp 995 995

object network INSIDE
nat (inside,outside) dynamic interface

object network MULTI-SERVER
nat (inside,outside) static interface service tcp 995 995

access-list Outside_access_in extended permit tcp any object MULTI-SERVER eq 995

access-group Outside_access_in in interface Outside

im sure the commands/coding/scripting can be cleaned up, but this worked for me.

thanks Vibhor Amrodia for your time and help!

(note for others as reference)

the ports in red i changed accordingly ... eg 80,110,25, etc

the neon green 1 changed for every rule i added... eg: 1,2,3,4,5, etc

for others that need help with similar situation here is a great reference website that helped me alot with setting port forwarding , internet sharing , and NAT / PAT on the ASA 5512-x , im sure it works with the updated asa 5505 as well running 8.3+

https://rowell.dionicio.net/configuring-nat-for-a-public-server-using-same-outside-interface/

Hi,It's great that I was able

Vibhor Amrodia — Wed, 12 Nov 2014 10:29:16 GMT

Hi,

It's great that I was able to help.

If the issue is resolved , please mark the appropriate response as the answer for this thread.

Thanks and Regards,

Vibhor Amrodia

sure thing, ill give you the

davedoggydogg — Thu, 13 Nov 2014 17:16:25 GMT

sure thing, ill give you the credit and correct answer, so it can help others in the future ....can u copy and paste my previous post and. i will mark that as correct, thanks again.

Here you go:-i dont know what

Vibhor Amrodia — Fri, 14 Nov 2014 10:39:36 GMT

Here you go:-

i dont know what i did, but between these extra commands i got the ports to forward :

object network obj-10.10.50.60-1

host 10.10.50.60

nat (inside,outside) static interface service tcp 80 80

object network INSIDE
nat (inside,outside) dynamic interface

object network MULTI-SERVER
nat (inside,outside) static interface service tcp 80 80

access-list Outside_access_in extended permit tcp any object MULTI-SERVER eq 80

access-group Outside_access_in in interface Outside

object network obj-10.10.50.60-2

host 10.10.50.60

nat (inside,outside) static interface service tcp 110 110

object network INSIDE
nat (inside,outside) dynamic interface

object network MULTI-SERVER
nat (inside,outside) static interface service tcp 110 110

access-list Outside_access_in extended permit tcp any object MULTI-SERVER eq 110

access-group Outside_access_in in interface Outside

object network obj-10.10.50.60-3

host 10.10.50.60

nat (inside,outside) static interface service tcp 995 995

object network INSIDE
nat (inside,outside) dynamic interface

object network MULTI-SERVER
nat (inside,outside) static interface service tcp 995 995

access-list Outside_access_in extended permit tcp any object MULTI-SERVER eq 995

access-group Outside_access_in in interface Outside

im sure the commands/coding/scripting can be cleaned up, but this worked for me.

thanks Vibhor Amrodia for your time and help!

(note for others as reference)

the ports in red i changed accordingly ... eg 80,110,25, etc

the neon green 1 changed for every rule i added... eg: 1,2,3,4,5, etc

https://rowell.dionicio.net/configuring-nat-for-a-public-server-using-same-outside-interface/