Urgent Cisco Question
I have a cisco ASA 5512 wit the below config.
my problem is that I cannot access EXTERNAL URLs, INTERNALLY.
For example, I can OPEN OWA outside and use it normally, but I cannot open the URL internally. I cannot configure outlook 2016 internally either due to (i would imagine) not even able to reach autodiscover.
I thought it was some sort of DNS issue outside the ASA but it's not.
I narrowed it down to an ASA config by pluggin in the old firewall.
any help would be greatly appreciated. I'm new to ASA's/CLI, please be patient with me :)
my problem is that I cannot access EXTERNAL URLs, INTERNALLY.
For example, I can OPEN OWA outside and use it normally, but I cannot open the URL internally. I cannot configure outlook 2016 internally either due to (i would imagine) not even able to reach autodiscover.
I thought it was some sort of DNS issue outside the ASA but it's not.
I narrowed it down to an ASA config by pluggin in the old firewall.
any help would be greatly appreciated. I'm new to ASA's/CLI, please be patient with me :)
ASA Version 9.2(2)4
!
hostname global.com-ASAFW
domain-name global.com
enable password Ts8.2CaITYiEag9Y encrypted
names
!
interface GigabitEthernet0/0
nameif Outside
security-level 0
ip address XXX.xx.xx.195 255.255.255.0
!
interface GigabitEthernet0/1
nameif Inside
security-level 100
ip address 10.0.0.2 255.255.255.0
!
interface GigabitEthernet0/2
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet0/3
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet0/4
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet0/5
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
dns server-group DefaultDNS
domain-name global.com
object service 3389
service tcp destination eq 3389
object network 10.0.0.20
host 10.0.0.20
object service 135
service tcp destination eq 135
object network webserver
host 10.0.0.25
object network webserver2
host 10.0.0.30
object network Web-Pub
range XXX.xx.xx.197 XXX.xx.xx.198
object network webserver-10.0.0.25
host 10.0.0.25
object network webserver-196
host 10.0.0.25
object network webserver-197
host 10.0.0.25
object network webserver-198
host 10.0.0.25
object network Exchange-25
host 10.0.0.20
object network Exchange-443
host 10.0.0.20
object network Exchange-135
host 10.0.0.20
object network Exchange-domain
host 10.0.0.20
access-list Outside_access_in extended permit tcp any object 10.0.0.20 eq smtp
access-list Outside_access_in extended permit tcp any object 10.0.0.20 eq https
access-list Outside_access_in extended permit tcp any object 10.0.0.20 eq www
access-list Outside_access_in extended permit tcp any object 10.0.0.20 eq domain
access-list Outside_access_in extended permit tcp any host 10.0.0.25 eq www
access-list Outside_access_in extended permit tcp any host 10.0.0.25 eq https
access-list Outside_access_in extended permit tcp any host 10.0.0.25 eq ssh
access-list Outside_access_in extended permit tcp any host 10.0.0.25 eq 3000
access-list Outside_access_in extended permit tcp any host 10.0.0.25 eq 3001
access-list Outside_access_in extended permit tcp any host 10.0.0.30 eq www
access-list Outside_access_in extended permit tcp any host 10.0.0.30 eq https
access-list Outside_access_in extended permit tcp any host 10.0.0.30 eq ftp
access-list Outside_access_in extended permit tcp any host 10.0.0.30 eq ssh
access-list Outside_access_in extended permit tcp any host 10.0.0.20 eq 135
pager lines 24
logging asdm informational
mtu Outside 1500
mtu Inside 1500
mtu management 1500
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
no arp permit-nonconnected
!
object network webserver2
nat (Inside,Outside) static XXX.xx.xx.198 dns
object network webserver-10.0.0.25
nat (Inside,Outside) static XXX.xx.xx.194 dns
object network webserver-196
nat (Inside,Outside) static XXX.xx.xx.196 dns
object network webserver-197
nat (Inside,Outside) static XXX.xx.xx.197 dns
object network Exchange-25
nat (Inside,Outside) static interface service tcp smtp smtp
object network Exchange-443
nat (Inside,Outside) static interface service tcp https https
object network Exchange-135
nat (Inside,Outside) static interface service tcp 135 135
object network Exchange-domain
nat (Inside,Outside) static interface service tcp domain domain
!
nat (Inside,Outside) after-auto source dynamic any interface
access-group Outside_access_in in interface Outside
route Outside 0.0.0.0 0.0.0.0 XXX.xx.xx.1 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 8080
http 192.168.1.0 255.255.255.0 management
http 10.0.0.0 255.255.255.0 Inside
no snmp-server location
no snmp-server contact
crypto ipsec security-association pmtu-aging infinite
crypto ca trustpool policy
telnet timeout 5
no ssh stricthostkeycheck
ssh 0.0.0.0 0.0.0.0 Outside
ssh 162.194.24.63 255.255.255.255 Outside
ssh 10.0.0.0 255.255.255.0 Inside
ssh timeout 5
ssh key-exchange group dh-group1-sha1
console timeout 0
dhcpd dns 10.0.0.14
!
dhcpd address 10.0.0.100-10.0.0.200 Inside
dhcpd dns 10.0.0.14 8.8.8.8 interface Inside
dhcpd enable Inside
!
dhcpd address 192.168.1.2-192.168.1.254 management
dhcpd enable management
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
username administrator password z6DoTSdiiBjyyd3y encrypted privilege 15
!
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 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
Cryptochecksum:922bb3c90fd184679485d36519d22e26
: end
Oh, wait...You are running a Windows Domain, right?
Why are you using the ASA's DHCP services?
Was your old router providing DHCP services as well?
Are you sure you don't have DHCP services running on one of the Windows servers?
Why are you using the ASA's DHCP services?
Was your old router providing DHCP services as well?
Are you sure you don't have DHCP services running on one of the Windows servers?
ASKER
Hi
10.0.0.14 is a windows DC/DNS/GC.
i have always used the FW for DHCP. Yes, I'm sure DHCP is not on any other box. no split DNS.
The RVS330 worked just fine when they were swapped. I was able to user everything normally without any issues.
10.0.0.14 is a windows DC/DNS/GC.
i have always used the FW for DHCP. Yes, I'm sure DHCP is not on any other box. no split DNS.
The RVS330 worked just fine when they were swapped. I was able to user everything normally without any issues.
Thanks for the information.
If you do not have a split horizon, are you using a different host name for your exchange server internally?
When you do an nslookup on your exchange server name from a workstation, what do you get?
When you ping your exchange server name from a workstation, what happens?
I would really like to know the answer to these questions with the old FW and the ASA in place.
If you do not have a split horizon, are you using a different host name for your exchange server internally?
When you do an nslookup on your exchange server name from a workstation, what do you get?
When you ping your exchange server name from a workstation, what happens?
I would really like to know the answer to these questions with the old FW and the ASA in place.
ASKER CERTIFIED SOLUTION
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You seem to have your Exchange server at 10.0.0.20 which means your email server is INSIDE your LAN and if so, you don't need to talk to your router/fw to get to it. Internal devices should be talking directly to the exchange server.
What kind of DNS server do you have at address 10.0.0.14?
Are you running a split horizon DNS zone?