I need help to resolve this issue. I have a Cisco ASA 5510 and I’m trying access to my webserver from internet but the connection does not work. Please find the network diagram below:
I applied this configuration:
interface Ethernet0/0
nameif dmz
security-level 50
ip address 172.16.16.1 255.255.255.0
object network dmz-subnet
subnet 172.16.16.0 255.255.255.0
nat (dmz,outside) dynamic interface
object network webserver
host 172.16.16.2
nat (dmz,outside) static interface service tcp https https
object network dns-server
host 10.3.7.5
access-list dmz_acl extended permit udp any object dns-server eq domain
access-list dmz_acl extended deny ip any object LanLOCAL
access-list dmz_acl extended permit ip any any
access-group dmz_acl in interface dmz
access-list outside_acl extended permit tcp any object webserver eq https
access-group outside_acl in interface outside
If I try the connection, the packets are allowed, here’s the packet-tracer result:
packet-tracer input outside tcp 192.0.2.123 12345 192.168.1.200 443
Phase: 1
Type: UN-NAT
Subtype: static
Result: ALLOW
Config:
object network webserver
nat (dmz,outside) static interface service tcp https https
Additional Information:
NAT divert to egress interface dmz
Untranslate 192.168.1.200/443 to 172.16.16.2/443
Phase: 2
Type: ACCESS-LIST
Subtype: log
Result: ALLOW
Config:
access-group outside_acl in interface outside
access-list outside_acl extended permit tcp any object webserver eq https
Additional Information:
Phase: 3
Type: NAT
Subtype: per-session
Result: ALLOW
Config:
Additional Information:
Phase: 4
Type: IP-OPTIONS
Subtype:
Result: ALLOW
Config:
Additional Information:
Phase: 5
Type: VPN
Subtype: ipsec-tunnel-flow
Result: ALLOW
Config:
Additional Information:
Phase: 6
Type: NAT
Subtype: rpf-check
Result: ALLOW
Config:
object network webserver
nat (dmz,outside) static interface service tcp https https
Additional Information:
Phase: 7
Type: NAT
Subtype: per-session
Result: ALLOW
Config:
Additional Information:
Phase: 8
Type: IP-OPTIONS
Subtype:
Result: ALLOW
Config:
Additional Information:
Phase: 9
Type: FLOW-CREATION
Subtype:
Result: ALLOW
Config:
Additional Information:
New flow created with id 81132, packet dispatched to next module
Result:
input-interface: outside
input-status: up
input-line-status: up
output-interface: dmz
output-status: up
output-line-status: up
Action: allow
A host on inside network can access to webserver. On my webserver, I can resolve name and I have access to internet. On my ISP router, I have created this route and this NAT rule:
network 172.16.16.0 netmask 255.255.255.0 gateway 192.168.1.200
protocol tcp external ip all external port 443 internal port 443 forward to 192.168.1.200
Below the full Cisco ASA configuration:
Result of the command: "sh run"
: Saved
:
ASA Version 9.1(5)
!
hostname asa
domain-name NETWORK.local
enable password …………. encrypted
xlate per-session deny tcp any4 any4
xlate per-session deny tcp any4 any6
xlate per-session deny tcp any6 any4
xlate per-session deny tcp any6 any6
xlate per-session deny udp any4 any4 eq domain
xlate per-session deny udp any4 any6 eq domain
xlate per-session deny udp any6 any4 eq domain
xlate per-session deny udp any6 any6 eq domain
passwd …………………. encrypted
names
ip local pool PoolTest 192.168.37.1-192.168.37.50 mask 255.255.255.0
!
interface Ethernet0/0
nameif dmz
security-level 50
ip address 172.16.16.1 255.255.255.0
!
interface Ethernet0/1
nameif inside
security-level 100
ip address 10.3.7.1 255.255.255.0
!
interface Ethernet0/2
nameif outside
security-level 0
ip address 192.168.1.200 255.255.255.0
!
interface Ethernet0/3
shutdown
no nameif
no security-level
no ip address
!
interface Management0/0
management-only
nameif management
security-level 100
no ip address
!
boot system disk0:/asa915-k8.bin
ftp mode passive
clock timezone CEST 1
clock summer-time CEDT recurring last Sun Mar 2:00 last Sun Oct 3:00
dns server-group DefaultDNS
domain-name NETWORK.local
object network obj_any
subnet 0.0.0.0 0.0.0.0
object network NETWORK_OBJ_10.0.0.0_8
subnet 10.0.0.0 255.0.0.0
object network LanLOCAL
subnet 10.3.7.0 255.255.255.0
object network RemoteLANCust
subnet 172.31.130.84 255.255.255.252
object network dmz-subnet
subnet 172.16.16.0 255.255.255.0
object network webserver
host 172.16.16.2
object network dns-server
host 10.3.7.5
access-list dmz_acl extended permit udp any object dns-server eq domain
access-list dmz_acl extended deny ip any object LanLOCAL
access-list dmz_acl extended permit ip any any
access-list outside_acl extended permit tcp any object webserver eq https
access-list outside_cryptomap_2 extended permit ip 10.3.7.0 255.255.255.0 172.31.130.84 255.255.255.252
pager lines 24
logging enable
logging trap notifications
logging asdm informational
logging host inside 10.3.3.100
mtu inside 1500
mtu outside 1500
mtu management 1500
mtu dmz 1500
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-731.bin
no asdm history enable
arp timeout 14400
no arp permit-nonconnected
nat (inside,any) source static LanLOCAL LanLOCAL destination static RemoteLANCust RemoteLANCust no-proxy-arp route-lookup
!
object network dmz-subnet
nat (dmz,outside) dynamic interface
object network webserver
nat (dmz,outside) static interface service tcp https https
!
nat (inside,outside) after-auto source dynamic LanLOCAL interface
access-group outside_acl in interface outside
access-group dmz_acl in interface dmz
route outside 0.0.0.0 0.0.0.0 192.168.1.1 1
route inside 10.0.0.0 255.0.0.0 10.3.7.250 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
aaa authentication ssh console LOCAL
http server enable
http 10.0.0.0 255.0.0.0 inside
snmp-server host inside x.x.x.x community ***** version 2c
snmp-server location World
snmp-server contact [email protected]
snmp-server community *****
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec ikev1 transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-AES-128-SHA-TRANS esp-aes esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-AES-128-SHA-TRANS mode transport
crypto ipsec ikev1 transform-set ESP-AES-128-MD5-TRANS esp-aes esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-AES-128-MD5-TRANS mode transport
crypto ipsec ikev1 transform-set ESP-AES-192-SHA-TRANS esp-aes-192 esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-AES-192-SHA-TRANS mode transport
crypto ipsec ikev1 transform-set ESP-AES-192-MD5-TRANS esp-aes-192 esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-AES-192-MD5-TRANS mode transport
crypto ipsec ikev1 transform-set ESP-AES-256-SHA-TRANS esp-aes-256 esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-AES-256-SHA-TRANS mode transport
crypto ipsec ikev1 transform-set ESP-AES-256-MD5-TRANS esp-aes-256 esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-AES-256-MD5-TRANS mode transport
crypto ipsec ikev1 transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-3DES-SHA-TRANS esp-3des esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-3DES-SHA-TRANS mode transport
crypto ipsec ikev1 transform-set ESP-3DES-MD5-TRANS esp-3des esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-3DES-MD5-TRANS mode transport
crypto ipsec ikev1 transform-set ESP-DES-SHA esp-des esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-DES-MD5 esp-des esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-DES-SHA-TRANS esp-des esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-DES-SHA-TRANS mode transport
crypto ipsec ikev1 transform-set ESP-DES-MD5-TRANS esp-des esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-DES-MD5-TRANS mode transport
crypto ipsec ikev2 ipsec-proposal DES
protocol esp encryption des
protocol esp integrity sha-1 md5
crypto ipsec ikev2 ipsec-proposal 3DES
protocol esp encryption 3des
protocol esp integrity sha-1 md5
crypto ipsec ikev2 ipsec-proposal AES
protocol esp encryption aes
protocol esp integrity sha-1 md5
crypto ipsec ikev2 ipsec-proposal AES192
protocol esp encryption aes-192
protocol esp integrity sha-1 md5
crypto ipsec ikev2 ipsec-proposal AES256
protocol esp encryption aes-256
protocol esp integrity sha-1 md5
crypto ipsec security-association pmtu-aging 20
crypto map outside_map 3 match address outside_cryptomap_2
crypto map outside_map 3 set pfs
crypto map outside_map 3 set peer a.b.c.d
crypto map outside_map 3 set ikev1 transform-set ESP-AES-256-SHA
crypto map outside_map 3 set security-association lifetime seconds 3600
crypto map outside_map interface outside
crypto ca trustpool policy
crypto ikev2 policy 1
encryption aes-256
integrity sha
group 5 2
prf sha
lifetime seconds 86400
crypto ikev2 policy 10
encryption aes-192
integrity sha
group 5 2
prf sha
lifetime seconds 86400
crypto ikev2 policy 20
encryption aes
integrity sha
group 5 2
prf sha
lifetime seconds 86400
crypto ikev2 policy 30
encryption 3des
integrity sha
group 5 2
prf sha
lifetime seconds 86400
crypto ikev2 policy 40
encryption des
integrity sha
group 5 2
prf sha
lifetime seconds 86400
crypto ikev2 enable outside
crypto ikev1 enable outside
crypto ikev1 policy 1
authentication pre-share
encryption aes-256
hash sha
group 2
lifetime 7200
crypto ikev1 policy 10
authentication crack
encryption aes-256
hash sha
group 2
lifetime 86400
crypto ikev1 policy 20
authentication rsa-sig
encryption aes-256
hash sha
group 2
lifetime 86400
crypto ikev1 policy 30
authentication pre-share
encryption aes-256
hash sha
group 2
lifetime 86400
crypto ikev1 policy 40
authentication crack
encryption aes-192
hash sha
group 2
lifetime 86400
crypto ikev1 policy 50
authentication rsa-sig
encryption aes-192
hash sha
group 2
lifetime 86400
crypto ikev1 policy 60
authentication pre-share
encryption aes-192
hash sha
group 2
lifetime 86400
crypto ikev1 policy 70
authentication crack
encryption aes
hash sha
group 2
lifetime 86400
crypto ikev1 policy 80
authentication rsa-sig
encryption aes
hash sha
group 2
lifetime 86400
crypto ikev1 policy 90
authentication pre-share
encryption aes
hash sha
group 2
lifetime 86400
crypto ikev1 policy 100
authentication crack
encryption 3des
hash sha
group 2
lifetime 86400
crypto ikev1 policy 110
authentication rsa-sig
encryption 3des
hash sha
group 2
lifetime 86400
crypto ikev1 policy 120
authentication pre-share
encryption 3des
hash sha
group 2
lifetime 86400
crypto ikev1 policy 130
authentication crack
encryption des
hash sha
group 2
lifetime 86400
crypto ikev1 policy 140
authentication rsa-sig
encryption des
hash sha
group 2
lifetime 86400
crypto ikev1 policy 150
authentication pre-share
encryption des
hash sha
group 2
lifetime 86400
telnet 10.0.0.0 255.0.0.0 inside
telnet timeout 5
ssh stricthostkeycheck
ssh 10.0.0.0 255.0.0.0 inside
ssh timeout 5
ssh key-exchange group dh-group1-sha1
console timeout 0
dhcpd option 3 ip 10.3.7.13
dhcpd option 6 ip 10.3.7.5 10.3.3.5
dhcpd option 42 ip 10.3.7.5 10.3.3.5
!
dhcpd address 10.3.7.225-10.3.7.249 inside
dhcpd dns 10.3.7.5 interface inside
dhcpd lease 28800 interface inside
dhcpd domain NETWORK.local interface inside
dhcpd enable inside
!
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
ntp server 10.3.7.5 source inside prefer
webvpn
anyconnect image disk0:/anyconnect-win-3.1.07021-k9.pkg 1
tunnel-group-list enable
group-policy GroupPolicy_a.b.c.d internal
group-policy GroupPolicy_a.b.c.d attributes
vpn-tunnel-protocol ikev1
group-policy GPTestTunnel internal
group-policy GPTestTunnel attributes
vpn-tunnel-protocol ssl-client ssl-clientless
webvpn
url-list none
vpn-group-policy GPTestTunnel
tunnel-group a.b.c.d type ipsec-l2l
tunnel-group a.b.c.d general-attributes
default-group-policy GroupPolicy_a.b.c.d
tunnel-group a.b.c.d ipsec-attributes
ikev1 pre-shared-key *****
ikev2 remote-authentication pre-shared-key *****
ikev2 local-authentication pre-shared-key *****
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
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
call-home
profile CiscoTAC-1
no active
destination address http https://tools.cisco.com/its/service/oddce/services/DDCEService
destination address email [email protected]
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:ce659b6be45d89fb64381df17f7502f7
: end
Can anyone help me?