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How to open ports in ASA5510. Please help!

makeITworkkb
Level 1
Level 1

Hi!

I am trying to do what I thought would be a simple task.
I need to open some specific ports for our new phones which use SIP.

I am unable to open any port att all. When I use "Open ports check-tool" or any other online service, it just shows "closed".

What am I missing?
Could someone step me through this please?

I am pretty unexperienced in using ASA5510. I only needed to get Remote Desktop to work before, and it does.

I'm using ASDM 7.1. Here is my running config:

ASA Version 9.0(3)
!
hostname ciscoasa
enable password 8Ry2YjIyt7RRXU24 encrypted
names
!
interface Ethernet0/0
 nameif outside
 security-level 0
 ip address XX.XX.XXX.193 255.255.255.248
!
interface Ethernet0/1
 nameif inside
 security-level 0
 ip address 172.16.25.1 255.255.252.0
!
interface Ethernet0/2
 shutdown
 no nameif
 no security-level
 no ip address
!
interface Ethernet0/3
 shutdown
 no nameif
 no security-level
 no ip address
!
interface Management0/0
 management-only
 nameif management
 security-level 100
 ip address 192.168.1.1 255.255.255.0
!
ftp mode passive
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
object network obj_any
 subnet 0.0.0.0 0.0.0.0
object network SERVER
 host 172.16.24.249
object service rdp
 service tcp destination eq 3389
access-list outside_access_in extended permit tcp any object SERVER eq 3389
aager lines 24
logging enable
logging asdm informational
mtu outside 1500
mtu inside 1500
mtu management 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
no arp permit-nonconnected
nat (outside,inside) source static any any destination static interface SERVER service rdp rdp unidirectional no-proxy-arp
!
object network obj_any
 nat (inside,outside) dynamic interface
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 XX.XX.XXX.193 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 192.168.1.0 255.255.255.0 management
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
console timeout 0
dhcpd address 192.168.1.2-192.168.1.254 management
dhcpd enable management
!
threat-detection basic-threat
threat-detection scanning-threat shun duration 3600
threat-detection statistics host number-of-rate 2
threat-detection statistics port
threat-detection statistics protocol
threat-detection statistics access-list
threat-detection statistics tcp-intercept rate-interval 30 burst-rate 400 average-rate 200
!
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 h323 h225
  inspect h323 ras
  inspect rsh
  inspect rtsp
  inspect esmtp
  inspect sqlnet
  inspect skinny 
  inspect sunrpc
  inspect xdmcp
  inspect netbios
  inspect tftp
  inspect ip-options
  inspect ftp
 class class-default
  user-statistics accounting
!
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
hpm topN enable
Cryptochecksum:99b4255b115ea4fde7d39316819468c3
: end

Please help, I´m really stuck here... :-)

4 Replies 4

makeITworkkb
Level 1
Level 1

Anyone who knows ASA5510?

Can you explain what it is you are trying to accomplish? What type of phones? Which ports need to be opened? What external resource (server or servers) are you trying to reach? Will the phones be in a separate vlan internally? 

The phones we have is called Yealink W52P and use SIP.
They are plugged in to our inside network using DHCP to get an internal IP (no separate VLAN).
There is a lot of ports to be opened and servers to be reachable (some of them in the attached image).

What I really would like to accomplish first is to just open, lets say port 5060, and make it to show up as "open" when I do a port-scan from outside.

There are two potential issues with your configuration, first I would turn on sip inspection in policy-map global_policy

class inspection_default

inspect sip

then do a packet-tracer to see if the packet exits the firewall on port 5060. If it does, but your phones still don't work  then you will need to work with your outbound in acl that restricts access to a single server on 3389.

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