08-28-2012 09:45 AM - edited 03-11-2019 04:47 PM
Hello,
I am setting up an ASA 5510 using the ASDM interface. It's a basic config with outside, inside, and management interfaces. The problem I'm having is that my PC on the inside interface will not browse or ping anything outside of the interface. I do have dynamic NAT established and have verified that the address is translating correctly. In fact, I can run the packet tracer in the ASDM from the inside to an outside address and it is successful. Here is my config. Any help would be appreciated.
ASA Version 8.4(4)1
!
hostname
domain-name
enable password knNonXPFJemAfUMd encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
!
interface Ethernet0/0
nameif Outside
security-level 0
ip address **.***.80.210 255.255.255.252
!
interface Ethernet0/1
nameif Inside
security-level 100
ip address 192.168.1.254 255.255.255.0
!
interface Ethernet0/2
shutdown
no nameif
no security-level
no ip address
!
interface Ethernet0/3
shutdown
no nameif
no security-level
no ip address
!
interface Management0/0
nameif management
security-level 100
ip address 192.168.2.1 255.255.255.0
management-only
!
boot system disk0:/asa844-1-k8.bin
ftp mode passive
dns domain-lookup Outside
dns domain-lookup Inside
dns server-group DefaultDNS
name-server **.***.**.*
name-server ***.***.***.*
domain-name
object network **.***.80.32
range **.***.80.33 **.***.80.61
description Range for NAT
object network Yoda_gigabitethernet
host **.***.80.209
description Gateway for Vader
pager lines 24
logging enable
logging asdm informational
mtu Outside 1500
mtu Inside 1500
mtu management 1500
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-649-103.bin
no asdm history enable
arp timeout 14400
!
nat (Inside,Outside) after-auto source dynamic any **.***.80.32
route Outside 0.0.0.0 0.0.0.0 **.***.80.209 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 192.168.2.0 255.255.255.0 management
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 warmstart
telnet timeout 5
ssh 192.168.1.0 255.255.255.0 Inside
ssh 192.168.2.0 255.255.255.0 management
ssh timeout 5
ssh key-exchange group dh-group1-sha1
console timeout 0
dhcpd address 192.168.1.20-192.168.1.30 Inside
dhcpd dns **.***.80.1 ***.***.144.1 interface Inside
dhcpd lease 28800 interface Inside
dhcpd domain interface Inside
dhcpd enable Inside
!
dhcpd address 192.168.2.2-192.168.2.254 management
dhcpd enable management
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
webvpn
!
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
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:100669a085c1ceaa91f3c0a34abf13a8
: end
Solved! Go to Solution.
08-28-2012 12:54 PM
Hello Chase,
I think you do not understand what my co-worker tried to explain.
Please check the following:
interface Ethernet0/0
nameif Outside
security-level 0
ip address **.***.80.210 255.255.255.252
So you can see it's a /30 netmask
Here is the route statement you have
route Outside 0.0.0.0 0.0.0.0 **.***.80.209 1
That route is covered on the /30 netmask so we are good on that
Now check the following:
nat (Inside,Outside) after-auto source dynamic any **.***.80.32
80.32 is not on the scope of the /30 netmask so you cannot use it, even though if you have bought a bigger range you have not applied it yet to the outside interface and since on 8.4.3 you cannot proxy arp ip addresses out of the scope of the outside interface then you will need to assing an IP address on the same range for the NAT to work.
Do the following and let us know man:
no nat (Inside,Outside) after-auto source dynamic any **.***.80.32
no route Outside **.***.80.32 255.255.255.224 64.130.80.209 1
nat (inside,outside) after-auto source dynamic any interface
Just remember to rate the helpful posts, that is also taken as a thank you
08-28-2012 11:25 AM
Hello Chase,
First of all enable the stateful inspection for the ICMP protocol to make the ICMP work across the firewal
-Fixup protocol ICMP
Second , from the ASA can you ping **.***.80.209
if the answer is YES, then from the ASA ping 4.2.2.2
Let me know those 3 resulst
Regards,
Remember to rate all the helpful posts
Julio
08-28-2012 11:37 AM
Hello Chase,
I can see you are NATing the traffic to **.***.80.32
It doesn't look like that is one of available IP addresses.
interface Ethernet0/0
ip address **.***.80.210 255.255.255.252
Can you change it to .80.210
Regards,
Felipe
08-28-2012 12:22 PM
Julio,
First of all, thanks for the help. I enabled ICMP; however, I still can't ping outside the interface.
Felipe,
I added a static route for the NATed addresses to the outside interface with no luck. Here is an updated config:
ASA Version 8.4(4)1
!
hostname
domain-name
enable password knNonXPFJemAfUMd encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
!
interface Ethernet0/0
nameif Outside
security-level 0
ip address **.***.80.210 255.255.255.252
!
interface Ethernet0/1
nameif Inside
security-level 100
ip address 192.168.1.254 255.255.255.0
!
interface Ethernet0/2
shutdown
no nameif
no security-level
no ip address
!
interface Ethernet0/3
shutdown
no nameif
no security-level
no ip address
!
interface Management0/0
nameif management
security-level 100
ip address 192.168.2.1 255.255.255.0
management-only
!
boot system disk0:/asa844-1-k8.bin
ftp mode passive
dns domain-lookup Outside
dns domain-lookup Inside
dns server-group DefaultDNS
name-server **.***.**.*
name-server ***.***.***.*
domain-name
object network **.***.80.32
range **.***.80.33 **.***.80.61
description Range for NAT
object network Yoda_gigabitethernet
host **.***.80.209
description Gateway for Vader
pager lines 24
logging enable
logging asdm informational
mtu Outside 1500
mtu Inside 1500
mtu management 1500
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-649-103.bin
no asdm history enable
arp timeout 14400
!
nat (Inside,Outside) after-auto source dynamic any **.***.80.32
route Outside 0.0.0.0 0.0.0.0 **.***.80.209 1
route Outside **.***.80.32 255.255.255.224 64.130.80.209 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 192.168.2.0 255.255.255.0 management
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 warmstart
telnet timeout 5
ssh 192.168.1.0 255.255.255.0 Inside
ssh 192.168.2.0 255.255.255.0 management
ssh timeout 5
ssh key-exchange group dh-group1-sha1
console timeout 0
dhcpd address 192.168.1.20-192.168.1.30 Inside
dhcpd dns **.***.80.1 ***.***.144.1 interface Inside
dhcpd lease 28800 interface Inside
dhcpd domain interface Inside
dhcpd enable Inside
!
dhcpd address 192.168.2.2-192.168.2.254 management
dhcpd enable management
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
webvpn
!
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
inspect icmp
!
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 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:100669a085c1ceaa91f3c0a34abf13a8
: end
08-28-2012 12:54 PM
Hello Chase,
I think you do not understand what my co-worker tried to explain.
Please check the following:
interface Ethernet0/0
nameif Outside
security-level 0
ip address **.***.80.210 255.255.255.252
So you can see it's a /30 netmask
Here is the route statement you have
route Outside 0.0.0.0 0.0.0.0 **.***.80.209 1
That route is covered on the /30 netmask so we are good on that
Now check the following:
nat (Inside,Outside) after-auto source dynamic any **.***.80.32
80.32 is not on the scope of the /30 netmask so you cannot use it, even though if you have bought a bigger range you have not applied it yet to the outside interface and since on 8.4.3 you cannot proxy arp ip addresses out of the scope of the outside interface then you will need to assing an IP address on the same range for the NAT to work.
Do the following and let us know man:
no nat (Inside,Outside) after-auto source dynamic any **.***.80.32
no route Outside **.***.80.32 255.255.255.224 64.130.80.209 1
nat (inside,outside) after-auto source dynamic any interface
Just remember to rate the helpful posts, that is also taken as a thank you
08-28-2012 01:27 PM
Ok,
I changed some things around so that everything should be in the same range:
interface Ethernet0/0
nameif Outside
security-level 0
ip address **.***.80.33 255.255.255.224
object network **.***.80.32
range **.***.80.35 **.***.80.60
description Range for NAT
nat (Inside,Outside) after-auto source dynamic any **.***.80.32
route Outside 0.0.0.0 0.0.0.0 **.***.80.62 1
Moving everything into the same subnet fixed my problem! We are replacing an old PIX where you could use addresses outside of the scope for NATing. Thanks again for your help!
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