Cannot access outside from dmz, ASA 5505
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08-08-2012 04:50 PM - edited 03-11-2019 04:40 PM
I am not able to get to the internet from my DMZ ip address.
Here is my config.
interface Ethernet0/0
switchport access vlan 2
!
interface Ethernet0/1
!
interface Ethernet0/2
!
interface Ethernet0/3
!
interface Ethernet0/4
!
interface Ethernet0/5
switchport access vlan 3
!
interface Ethernet0/6
!
interface Ethernet0/7
!
interface Vlan1
nameif inside
security-level 100
ip address 10.10.39.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address dhcp setroute
!
interface Vlan3
no forward interface Vlan1
nameif DMZ
security-level 50
ip address 172.16.4.1 255.255.255.0
!
ftp mode passive
dns server-group DefaultDNS
domain-name enerfab.com
pager lines 24
mtu inside 1500
mtu outside 1500
mtu DMZ 1500
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0
nat (DMZ) 1 172.16.4.0 255.255.255.0
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 ssh console LOCAL
aaa authentication enable console LOCAL
aaa authentication telnet console LOCAL
http server enable
http 192.168.0.0 255.255.0.0 inside
http 10.10.39.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec security-association lifetime seconds 28800
crypto ipsec security-association lifetime kilobytes 4608000
crypto isakmp policy 65535
authentication pre-share
encryption 3des
hash sha
group 2
lifetime 86400
telnet timeout 5
ssh 0.0.0.0 0.0.0.0 inside
ssh 10.10.0.0 255.255.0.0 inside
ssh timeout 5
console timeout 0
management-access inside
dhcpd dns 192.168.10.20 192.168.10.21
dhcpd auto_config outside
dhcpd option 150 ip 192.168.0.151
!
dhcpd address 10.10.39.71-10.10.39.132 inside
dhcpd enable inside
!
dhcpd address 172.16.4.50-172.16.4.58 DMZ
dhcpd enable DMZ
!
vpnclient server XXX>XXX>XXX>XX
vpnclient mode network-extension-mode
vpnclient nem-st-autoconnect
vpnclient vpngroup name_EZVPN password ********
vpnclient username name password *******
vpnclient enable
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
webvpn
no tunnel-group-map enable peer-ip
!
class-map inspection_default
match default-inspection-traffic
Thanks in advance.
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08-12-2012 07:39 PM
Keith,
Are the clients on the DMZ receiving addresses correctly? When they have an address, can they ping their default gateway? Can you do
packet-tracer input DMZ icmp 172.16.4.51 8 0 4.2.2.2
Do you have the logs of the firewall? Can you try to access the websites using their IP addresses instead of the FQDN?
Mike

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08-12-2012 08:48 PM
Is Internet access working from the inside? I dont see a default route configured in the config above.
Zubair
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08-12-2012 08:59 PM
As zubair said its about the default route , it should be
route outside 0 0 (ip address of next hop)
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08-12-2012 09:05 PM
I think this should take care of it:
interface Vlan2
nameif outside
security-level 0
ip address dhcp setroute
Thats why you dont see it configured.
Mike
