06-30-2016 11:55 AM - edited 03-12-2019 12:58 AM
I have attempted to open three ports on our firewall. Only when I test the ports using an open port checker tool online, I get a response that the ports are closed. I'm not understanding why these ports are not getting hits or showing open. Can someone please tell me what I am missing?
My current configuration is as follows:
: Saved : ASA Version 8.2(5) ! hostname PC domain-name .com enable password XXXXXXX encrypted passwd XXXXXXX encrypted names name 192.168.1.3 Server ! interface Ethernet0/0 switchport access vlan 2 ! interface Ethernet0/1 ! interface Ethernet0/2 ! interface Ethernet0/3 ! interface Ethernet0/4 ! interface Ethernet0/5 ! interface Ethernet0/6 ! interface Ethernet0/7 ! interface Vlan1 nameif inside security-level 100 ip address 192.168.1.1 255.255.255.0 ! interface Vlan2 nameif outside security-level 0 ip address 000.000.000.000 255.255.255.252 ! regex url4 "twitter.com" boot system disk0:/asa825-k8.bin ftp mode passive clock timezone EST -5 clock summer-time EDT recurring dns server-group DefaultDNS domain-name .com object-group protocol DM_INLINE_PROTOCOL_1 protocol-object udp protocol-object tcp object-group network NAS object-group service Practice-Perfct tcp-udp port-object eq 8100 object-group service Practice-Perfect tcp-udp port-object eq 8099 object-group service Practice-Perfet tcp-udp port-object eq 8102 access-list inside_nat0_outbound extended permit ip 192.168.1.0 255.255.255.0 10.254.254.0 255.255.255.0 access-list split standard permit 192.168.1.0 255.255.255.0 access-list http extended permit tcp any any eq www access-list http extended permit tcp any host Server eq 3389 access-list outside_access_in extended permit object-group DM_INLINE_PROTOCOL_1 any host Server object-group Practice-Perfet access-list outside_access_in extended permit object-group DM_INLINE_PROTOCOL_1 any host Server object-group Practice-Perfct access-list outside_access_in extended permit object-group DM_INLINE_PROTOCOL_1 any host Server object-group Practice-Perfect access-list outside extended permit udp any host Server range 8099 8100 access-list outside extended permit tcp any host Server range 8099 8100 access-list outside extended permit tcp any host Server eq 8102 access-list outside extended permit udp any host Server eq 8102 pager lines 24 logging asdm informational mtu inside 1500 mtu outside 1500 ip local pool RemoteAccess 10.254.254.1-10.254.254.254 mask 255.255.255.0 icmp unreachable rate-limit 1 burst-size 1 asdm image disk0:/asdm-645-206.bin no asdm history enable arp timeout 14400 nat-control global (outside) 1 interface nat (inside) 0 access-list inside_nat0_outbound nat (inside) 1 0.0.0.0 0.0.0.0 static (inside,outside) udp interface 8102 Server 8102 netmask 255.255.255.255 static (inside,outside) tcp interface 8102 Server 8102 netmask 255.255.255.255 static (inside,outside) tcp interface 8099 Server 8099 netmask 255.255.255.255 static (inside,outside) udp interface 8099 Server 8099 netmask 255.255.255.255 static (inside,outside) tcp interface 8100 Server 8100 netmask 255.255.255.255 static (inside,outside) udp interface 8100 Server 8100 netmask 255.255.255.255 access-group outside_access_in in interface outside route outside 0.0.0.0 0.0.0.0 23.25.105.134 1 timeout xlate 3:00:00 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 aaa authentication telnet console LOCAL aaa authentication ssh console LOCAL http server enable http 192.168.1.0 255.255.255.0 inside no snmp-server location no snmp-server contact snmp-server enable traps snmp authentication linkup linkdown coldstart sysopt connection tcpmss 1300 crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac crypto ipsec security-association lifetime seconds 28800 crypto ipsec security-association lifetime kilobytes 4608000 crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set transform-set ESP-AES-256-MD5 crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set security-association lifetime seconds 28800 crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set security-association lifetime kilobytes 4608000 crypto map outside_map 65535 ipsec-isakmp dynamic SYSTEM_DEFAULT_CRYPTO_MAP crypto map outside_map interface outside crypto ca server shutdown cdp-url http://PRFC.default.domain.invalid/+CSCOCA+/asa_ca.crl issuer-name CN=PRFC.default.domain.invalid smtp from-address admin@PRFC.default.domain.invalid crypto isakmp enable outside crypto isakmp policy 10 authentication pre-share encryption aes-256 hash md5 group 2 lifetime 86400 telnet 192.168.1.0 255.255.255.0 inside telnet timeout 5 ssh 192.168.1.0 255.255.255.0 inside ssh 000.000.000.000 255.255.255.255 outside ssh timeout 30 console timeout 0 management-access inside dhcpd address 192.168.1.100-192.168.1.199 inside dhcpd dns 4.2.2.2 8.8.8.8 interface inside dhcpd lease 28800 interface inside dhcpd enable inside ! threat-detection basic-threat threat-detection statistics access-list no threat-detection statistics tcp-intercept ntp server 67.159.5.90 source outside webvpn group-policy RemoteAccess internal group-policy RemoteAccess attributes dns-server value 75.75.75.75 75.75.76.76 vpn-tunnel-protocol IPSec split-tunnel-policy tunnelspecified split-tunnel-network-list value split username PRFC password TGRLBheRPU8ynGyC encrypted privilege 15 username NetInnov password 5v5Z3XEBY7affMrB encrypted privilege 15 tunnel-group RemoteAccess type remote-access tunnel-group RemoteAccess general-attributes address-pool RemoteAccess default-group-policy RemoteAccess tunnel-group RemoteAccess ipsec-attributes pre-shared-key ***** ! class-map type regex match-any urlreg match regex url4 class-map inspection_default match default-inspection-traffic class-map acl match access-list http class-map type inspect http match-all http_url_policy match request header host regex class urlreg ! ! policy-map type inspect dns preset_dns_map parameters message-length maximum 512 policy-map type inspect http http_policy parameters class http_url_policy drop-connection policy-map httpdrop class acl inspect http http_policy 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 inspect icmp ! service-policy global_policy global service-policy httpdrop interface outside prompt hostname context no call-home reporting anonymous call-home profile CiscoTAC-1 no active destination address http https://tools.cisco.com/its/service/oddce/services/DDCEService destination address email callhome@cisco.com destination transport-method http subscribe-to-alert-group diagnostic subscribe-to-alert-group environment subscribe-to-alert-group inventory periodic monthly subscribe-to-alert-group configuration periodic monthly subscribe-to-alert-group telemetry periodic daily Cryptochecksum
07-05-2016 07:35 AM
I would recommend mapping outside_access_in to your outside interface and then try re-running the packet tracer command to see if that helps.
07-05-2016 07:45 AM
just applied.
access-group outside_access_in in interface outside
No change in port test though.
07-05-2016 08:47 AM
Simrid,
I changed the access-list outside-access-in to:
access-list outside_access_in line 8 extended permit tcp any any eq 8099 (hitcnt=1)
access-list outside_access_in line 9 extended permit tcp any any eq 8100 (hitcnt=1)
access-list outside_access_in line 10 extended permit tcp any any eq 8102 (hitcnt=1)
As you can see I now am allowing traffic into the network. I don't however, understand why it would not allow it when the destination was defined as Host 192.168.1.3.
07-05-2016 08:54 AM
It will be an issue most likely with your NAT's. In pre-8.4 configuration you need to specify the NAT'd IP address in the ACL, rather than the real IP.
07-05-2016 07:37 AM
just applied.
access-group outside_access_in in interface outside
No change in port test though.
07-05-2016 06:37 AM
I also ran the 'sh nat' command and this is the result:
match tcp inside host Server eq 8102 outside any
static translation to xxx.xxx.xxx.xxx/8102
translate_hits = 0, untranslate_hits = 72
match tcp inside host Server eq 8099 outside any
static translation to xxx.xxx.xxx.xxx/8099
translate_hits = 0, untranslate_hits = 40
match udp inside host Server eq 8099 outside any
static translation to xxx.xxx.xxx.xxx/8099
translate_hits = 0, untranslate_hits = 0
match tcp inside host Server eq 8100 outside any
static translation to xxx.xxx.xxx.xxx/8100
translate_hits = 0, untranslate_hits = 42
So, the traffic is making it to the firewall, it's just not getting translated to allow it to pass.
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