Hello,
It has been a while since I last worked on firewall. Please take a look at info below.
- INSIDE does not have access to Internet
- Services/Servers in DMZ need to be accessible from Internet
CONFIG
names
!
interface Ethernet0/0
nameif outside
security-level 0
ip address X.X.X.46 255.255.255.240 standby X.X.X.45
!
interface Ethernet0/1
speed 1000
duplex full
nameif inside
security-level 100
ip address INSIDE.254 255.255.254.0 standby INSIDE.253
!
interface Ethernet0/2
!
interface Ethernet0/2.1
description LAN Failover Interface
vlan 20
!
interface Ethernet0/2.2
description STATE Failover Interface
vlan 30
!
interface Ethernet0/3
description DMZ INTERFACE
speed 100
duplex full
nameif dmz
security-level 100
ip address DMZ.254 255.255.255.0 standby DMZ.253
!
interface Management0/0
nameif management
security-level 100
ip address 192.168.1.1 255.255.255.0
management-only
!
ftp mode passive
dns server-group DefaultDNS
domain-name CDGI.com
same-security-traffic permit inter-interface
access-list NAT0_INSIDE_DMZ remark NO NAT FROM INSIDE TO DMZ
access-list NAT0_INSIDE_DMZ extended permit ip INSIDE.0 255.255.254.0 DMZ.0 255.255.255.0
access-list OUTSIDE_TO_DMZ extended permit ip any host X.X.X.41
access-list OUTSIDE_TO_DMZ extended permit tcp any host X.X.X.41 eq www
access-list OUTSIDE_TO_DMZ extended permit icmp any host X.X.X.41 echo
access-list OUTSIDE_TO_DMZ extended permit icmp any host X.X.X.41 echo-reply
access-list OUTSIDE_TO_DMZ extended permit ip any host X.X.X.42
access-list OUTSIDE_TO_DMZ extended permit tcp any host X.X.X.42 eq www
access-list OUTSIDE_TO_DMZ extended permit icmp any host X.X.X.42 echo
access-list OUTSIDE_TO_DMZ extended permit icmp any host X.X.X.42 echo-reply
access-list NO-NAT-INTERNAL extended permit ip INSIDE.0 255.255.254.0 DMZ.0 255.255.255.0
access-list NO-NAT-INTERNAL extended permit ip INSIDE.0 255.255.254.0 192.168.254.0 255.255.255.0
access-list NO-NAT-DMZ extended permit ip DMZ.0 255.255.255.0 192.168.254.0 255.255.255.0
pager lines 24
logging enable
logging asdm informational
mtu outside 1500
mtu inside 1500
mtu dmz 1500
mtu management 1500
ip local pool SSLCLIENT_IP_POOL 192.168.254.1-192.168.254.25 mask 255.255.255.0
failover
failover lan unit primary
failover lan interface FAILOVER Ethernet0/2.1
failover link STATEFUL Ethernet0/2.2
failover interface ip FAILOVER 172.31.254.254 255.255.255.252 standby 172.31.254.253
failover interface ip STATEFUL 172.31.254.250 255.255.255.252 standby 172.31.254.249
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
nat (dmz) 0 access-list NO-NAT-DMZ
static (dmz,outside) X.X.X.41 DMZ.49 netmask 255.255.255.255
static (dmz,outside) X.X.X.42 DMZ.28 netmask 255.255.255.255
access-group OUTSIDE_TO_DMZ in interface outside
route outside 0.0.0.0 0.0.0.0 X.X.X.33 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
dynamic-access-policy-record DfltAccessPolicy
aaa authentication ssh console LOCAL
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
service resetoutside
ssh timeout 5
ssh version 2
console timeout 0
dhcpd address 192.168.1.2-192.168.1.254 management
dhcpd enable management
!
threat-detection basic-threat
threat-detection statistics port
threat-detection statistics protocol
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 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 icmp
inspect http
!
service-policy global_policy global
===========================================================================================
As you see above, config has ACL that allows traffic from Internet to DMZ and has static NAT. The hosts in DMZ are still not accessible.
Please help.
Thanks,
Paresh.
