topic Can't Connect to Internet through ASA 5510.... in Network Security

Can't Connect to Internet through ASA 5510....

toddyboman — Mon, 11 Mar 2019 18:52:03 GMT

Any help would be great......I have made several changes but can't seem to connect to the internet......

I am very new to the cisco and asa world....

Thanks for the help.

Here is my config file...

: Saved
:
ASA Version 8.0(5)
!
hostname asa
enable password m encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
!
interface Ethernet0/0
nameif outside
security-level 0
ip address dhcp setroute
!
interface Ethernet0/1
nameif inside
security-level 100
ip address 192.168.10.1 255.255.255.0
!
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 192.168.1.5 255.255.255.0
management-only
!
boot system disk0:/asa805-k8.bin
ftp mode passive
clock timezone CST -6
clock summer-time CDT recurring
pager lines 24
logging asdm informational
mtu management 1500
mtu inside 1500
mtu outside 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-631.bin
no asdm history enable
arp timeout 14400
global (inside) 101 interface
global (outside) 1 111.111.111.11
nat (inside) 1 192.168.10.0 255.255.255.0
nat (inside) 101 0.0.0.0 0.0.0.0
nat (outside) 101 0.0.0.0 0.0.0.0 outside
route outside 0.0.0.0 0.0.0.0 192.168.10.1 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
http server enable
http 192.168.1.0 255.255.255.0 management
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
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd address 192.168.1.6-192.168.1.254 management
!
dhcpd address 192.168.10.2-192.168.10.30 inside
dhcpd enable inside
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
username asa password v encrypted
!
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
!
service-policy global_policy global
prompt hostname context
Cryptochecksum:6f11e3619456492d465bbbec26ff930d
: end
asdm image disk0:/asdm-631.bin
no asdm history enable

Re: Can't Connect to Internet through ASA 5510....

Jennifer Halim — Fri, 08 Oct 2010 03:57:53 GMT

Please remove the following as follows:

no global (inside) 101 interface
no global (outside) 1 111.111.111.11
no nat (inside) 1 192.168.10.0 255.255.255.0

no nat (outside) 101 0.0.0.0 0.0.0.0 outside
no route outside 0.0.0.0 0.0.0.0 192.168.10.1 1

And add the following:

global (outside) 101 interface

After the above changes, please "clear xlate".

Please check the output of "show route" and makes sure that you have default gateway set by your ISP via the DHCP setroute command on the outside interface.

Hope that helps.

Re: Can't Connect to Internet through ASA 5510....

toddyboman — Fri, 08 Oct 2010 04:09:00 GMT

Thanks.....

Ok I made those changes.....

If I enter the show route I recieve the following....

Gateway of last resort is not set

c 192.168.10.0 255.255.255.0 is directly connected, inside

c 192.168.1.0 255.255.255.0 is directly connected, management

Re: Can't Connect to Internet through ASA 5510....

Jennifer Halim — Fri, 08 Oct 2010 04:14:09 GMT

OK, that means your outside interface doesn't seem to get the default gateway from your ISP.

How is the connection to the ISP? is it supposed to be DHCP assigned address? Are you getting IP Address on the outside interface?

Please check "show interface" to see if you are getting ip address on the Outside interface.

If not, please try shut/unshut the interface:

interface Ethernet0/0

shut

no ip address

ip address dhcp setroute

no shut

And check the interface again and route.

Re: Can't Connect to Internet through ASA 5510....

toddyboman — Fri, 08 Oct 2010 04:22:38 GMT

My connection is.....

ISP provided dsl modem <-------> asa outside interface

asa inside interface <------------> internal switch

internal switch <--------------> office pc

DHCP is how my isp provide modem is currently set.......I can change it and will change it to whatever will make it work.

I made the changes as you suggested and recieved the following...

show route

Gateway of last resort is not set

C 192.168.10.0 255.255.255.0 is directly connected, inside
C 192.168.1.0 255.255.255.0 is directly connected, management

Re: Can't Connect to Internet through ASA 5510....

lalarajaraman1985 — Fri, 08 Oct 2010 04:44:00 GMT

Hello,

Why dont you try and set a static route in asa pointing towards the dsl modem?

Regards

Raja

Re: Can't Connect to Internet through ASA 5510....

Dan-Ciprian Cicioiu — Fri, 08 Oct 2010 04:54:25 GMT

Can you post a : show inter ip brie

and debug dhcpc event

for the debug you must add first :

logging enable

logging buffered 1

Dan

Re: Can't Connect to Internet through ASA 5510....

toddyboman — Fri, 08 Oct 2010 12:56:32 GMT

show inter ip brie.......

Interface                  IP-Address      OK? Method Status                Protocol
Ethernet0/0                unassigned      YES DHCP   up                    up
Ethernet0/1                192.168.10.1    YES manual up                    up
Ethernet0/2                unassigned      YES unset administratively down down
Ethernet0/3                unassigned      YES unset administratively down down
Management0/0              192.168.1.5     YES CONFIG up                    up

Re: Can't Connect to Internet through ASA 5510....

Dan-Ciprian Cicioiu — Fri, 08 Oct 2010 13:05:22 GMT

Do you know from what class should you receive the dynamic IP ( the problem might be that

you should receive an IP from 192.168.1 or 192.168
.10 ) because the interface configuration is ok.

Do you have any logs like : Failed to apply IP address to

BTW enable your logging

Dan

Re: Can't Connect to Internet through ASA 5510....

toddyboman — Fri, 08 Oct 2010 13:23:13 GMT

dancicioiu wrote:

and debug dhcpc event

for the debug you must add first :

logging enable

logging buffered 1

Dan

can't seem to make this command work......

asa(config)# debug dhcpc event
^
ERROR: % Invalid input detected at '^' marker.

Re: Can't Connect to Internet through ASA 5510....

Dan-Ciprian Cicioiu — Fri, 08 Oct 2010 13:24:43 GMT

try :

debug dhcpc detail

Re: Can't Connect to Internet through ASA 5510....

toddyboman — Fri, 08 Oct 2010 13:29:10 GMT

asa(config)# debug dhcpc detail

debug dhcpc detail enabled at level 1

Re: Can't Connect to Internet through ASA 5510....

toddyboman — Fri, 08 Oct 2010 13:34:40 GMT

i'm starting to wonder if there isn't something configured/set up wrong within my ISP provided modem.......

Currently I have done nothing differently with it.....except hook the asa into it.....

Should I change something within it?

I have conntacted my isp so I do have my static IP but I have not done anything with them......

Thanks for everyone's help!

Re: Can't Connect to Internet through ASA 5510....

Jennifer Halim — Sat, 09 Oct 2010 00:26:01 GMT

If you received static IP address from your ISP, you should just configure the static ip address on your ASA outside interface instead of DHCP.

Then you would also need to configure default route on the ASA to point to your ISP IP address. Internet should work after that.

Re: Can't Connect to Internet through ASA 5510....

toddyboman — Tue, 12 Oct 2010 21:18:18 GMT

Sorry was a long holiday weekend......and I elected to take the entire weekend off.......

Back to work now.....

Here is my running config.......

Something still isn't quite right........

I have a feeling it has to do with my my configuration of my route to point to my ISP IP address........

ASA Version 8.0(5)
!
hostname l
enable password l encrypted
passwd 2 encrypted
names
!
interface Ethernet0/0
nameif outside
security-level 0
ip address 111.111.111.11 255.255.255.252
!
interface Ethernet0/1
nameif inside
security-level 100
ip address 192.168.10.1 255.255.255.0
!
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 192.168.1.5 255.255.255.0
management-only
!
boot system disk0:/asa805-k8.bin
ftp mode passive
clock timezone CST -6
clock summer-time CDT recurring
pager lines 24
logging enable
logging buffered alerts
logging asdm informational
mtu management 1500
mtu inside 1500
mtu outside 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-631.bin
no asdm history enable
arp timeout 14400
global (outside) 101 interface
nat (inside) 101 0.0.0.0 0.0.0.0
route outside 0.0.0.0 0.0.0.0 192.168.10.1 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
http server enable
http 192.168.1.0 255.255.255.0 management
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
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd address 192.168.1.6-192.168.1.254 management
!
dhcpd address 192.168.10.2-192.168.10.30 inside
dhcpd enable inside
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
username admin password vx8BkOWfWwvYuBKw encrypted
!
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
!
service-policy global_policy global
prompt hostname context
Cryptochecksum:270ddeeb0289103b45bfa08f20419bba
: end
asdm image disk0:/asdm-631.bin
no asdm history enable

Re: Can't Connect to Internet through ASA 5510....

Jennifer Halim — Tue, 12 Oct 2010 23:50:42 GMT

Great to hear you are enjoying your weekend

The default gateway for the ASA is incorrect.

It seems incorrect that your outside interface ip addres is 111.111.111.11 (with a /30 mask, 111.111.111.11 would be a broadcast address). Can you please double check with your ISP the actual ip address? Unless you are masking the ip address for privacy.

The following default gateway configured is incorrect:

route outside 0.0.0.0 0.0.0.0 192.168.10.1 1

192.168.10.1 is your ASA inside interface. By configuring default gateway towards the ASA inside interface, the traffic will not go out to the Internet.

You would need to remove the above, and configure the next hop ip address towards your ISP (would be in the same subnet as your ASA outside interface given by your ISP). Please check with your ISP what should be the ASA default gateway, then configure the following:

route outside 0.0.0.0 0.0.0.0

Re: Can't Connect to Internet through ASA 5510....

toddyboman — Wed, 13 Oct 2010 03:29:49 GMT

Yes I did mask my ISP given static ip for privacy reason.....so the 111.111.111.11 is fake ip......

They have given me 2 static ip addresses.....for privacy purposes I will use

111.111.111.11 and 222.222.222.22.....

So are you saying my outsider interface should read

interface Ethernet0/0
nameif outside
security-level 0
ip address 111.111.111.11 255.255.255.252

Then my route will read the following.....

route outside 0.0.0.0 0.0.0.0 111.111.111.11 1

According to my ISP my default gateway is my First Static IP so using the a fake static ip's from above my default gateway would be 111.111.111.11.....

Re: Can't Connect to Internet through ASA 5510....

Rudresh Veerappaji — Wed, 13 Oct 2010 14:41:04 GMT

Re: Can't Connect to Internet through ASA 5510....

Rudresh Veerappaji — Wed, 13 Oct 2010 14:43:48 GMT

Hi ,

Consider the below:

111.111.111.12 ------> ip address of the Gateway (i.e ISP router ip address,) and

111.111.111.11 --------> ip address that needs to be assigned to the ASA,

Internal network-------(inside)ASA(outside)-------------------------(111.111.111.12 )ISP Router----------INTERNET

(111.111.111.11)

If the above is the setup, you need the following configuration:

interface Ethernet0/0
nameif outside
security-level 0
ip address 111.111.111.11 255.255.255.252

route outside 0.0.0.0 0.0.0.0 111.111.111.12 1

Let me know if this works,

Cheers,

Rudresh V

Re: Can't Connect to Internet through ASA 5510....

toddyboman — Wed, 13 Oct 2010 15:01:25 GMT

do I need to configure my outside interface to accept or handle a ppoe connection.....since that is what my current isp provided modem/router does?

If so I would assume I need to bridge my ISP provided router.....then add the static ip and my ppoe configurations to my outside interface....

I believe I do have those configurations.......I changed it to that way last night.......

However I still can't connected.....

Here is my config file...... I obviously have hidden my static ips.....but I have 2 one is xxx.xxx.xxx.13 and the other is xxx.xxx.xxx.14

: Saved
:
ASA Version 8.0(5)
!
hostname x
enable password mrNAzLB3WoDGll7l encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
!
interface Ethernet0/0
nameif outside
security-level 0
ip address xxx.xxx.xxx.14 255.255.255.252
!
interface Ethernet0/1
nameif inside
security-level 100
ip address 192.168.10.1 255.255.255.0
!
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 192.168.1.5 255.255.255.0
management-only
!
boot system disk0:/asa805-k8.bin
ftp mode passive
clock timezone CST -6
clock summer-time CDT recurring
pager lines 24
logging enable
logging buffered alerts
logging asdm informational
logging debug-trace
mtu outside 1500
mtu inside 1500
mtu management 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-631.bin
no asdm history enable
arp timeout 14400
global (outside) 101 interface
nat (inside) 101 0.0.0.0 0.0.0.0
route outside 0.0.0.0 0.0.0.0 xxx.xxx.xxx.13 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
http server enable
http 192.168.1.0 255.255.255.0 management
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
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd address 192.168.10.2-192.168.10.30 inside
dhcpd enable inside
!
dhcpd address 192.168.1.6-192.168.1.47 management
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
username admin password vx8BkOWfWwvYuBKw encrypted
!
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
!
service-policy global_policy global
prompt hostname context
Cryptochecksum:411b6627479dcd14b847fdf03cf5b90f
: end
asdm image disk0:/asdm-631.bin
no asdm history enable