ā06-01-2012 10:27 AM - edited ā03-11-2019 04:14 PM
Greetins All - hopefullly you can help me. I'm trying to port forward some ports to my internal mail server, namely smtp , www and http/https. It looks like nat does work but its possible the firewall blocks it.
-cus-fw-01(config)# show nat
Auto NAT Policies (Section 2)
1 (inside) to (outside) source static mailserver interface service tcp smtp smtp
translate_hits = 1, untranslate_hits = 6 <------- this happens when i try to telnet <mydomain.com> 25 , from an outside host
2 (inside) to (outside) source dynamic obj-10.10.10.0 interface
translate_hits = 8435, untranslate_hits = 673
my access list
elg-cus-fw-01(config)# show access-list
access-list cached ACL log flows: total 0, denied 0 (deny-flow-max 4096)
alert-interval 300
access-list outside_access_in; 4 elements; name hash: 0x6892a938
access-list outside_access_in line 1 extended permit tcp any object mailserver eq smtp (hitcnt=0) 0x029b8a79
access-list outside_access_in line 1 extended permit tcp any host 10.10.10.31 eq smtp (hitcnt=0) 0x029b8a79
access-list outside_access_in line 2 extended permit tcp any object securewebmail eq https (hitcnt=0) 0xc7e21171
access-list outside_access_in line 2 extended permit tcp any host 10.10.10.31 eq https (hitcnt=0) 0xc7e21171
access-list outside_access_in line 3 extended permit tcp any object webmail eq www (hitcnt=0) 0xa3e2340f
access-list outside_access_in line 3 extended permit tcp any host 10.10.10.31 eq www (hitcnt=0) 0xa3e2340f
access-list outside_access_in line 4 extended permit tcp any object webserverpop3 eq pop3 (hitcnt=0) 0x5386a581
access-list outside_access_in line 4 extended permit tcp any host 10.10.10.31 eq pop3 (hitcnt=0) 0x5386a581
my packet tracer
lg-cus-fw-01(config)# packet-tracer input outside tcp fqdn google.com smtp 1$
Mapping FQDN google.com to IP address 74.125.225.72
(More IP addresses resolved. Please run "show dns-host" to check.)
Phase: 1
Type: ROUTE-LOOKUP
Subtype: input
Result: ALLOW
Config:
Additional Information:
in 10.10.10.0 255.255.255.0 inside
Phase: 2
Type: ACCESS-LIST
Subtype:
Result: DROP
Config:
Implicit Rule
Additional Information:
Result:
input-interface: outside
input-status: up
input-line-status: up
output-interface: inside
output-status: up
output-line-status: up
Action: drop
Drop-reason: (acl-drop) Flow is denied by configured rule
does anyone know where is the rule? Is this something by defautl?
ā06-01-2012 11:03 AM
Hello Alex,
Can you provide us the following information:
Sh run object network ( Want to see the one for that host)
Sh run nat ( the one used by that host)
Sh run access-group
ā06-01-2012 11:16 AM
sh run object
object network mailserver
host 10.10.10.31
object network webmail
host 10.10.10.31
object network securewebmail
host 10.10.10.31
object network webserverpop3
host 10.10.10.31
object network mailserver
nat (inside,outside) static interface service tcp smtp smtp
i have not configured access-group... could this be it?
Alex
ā06-01-2012 12:02 PM
Hello Alex.
Yes, that is
Access-group outside_access_in in interface outside
Regards,
Julio
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