Conversion of lines to the ACL

I have an inside/outside/dmz configuration. I am NAT from inside to outside.

I would like to convert LEADS to ACL statements, but I'm a little confused about some things, and I can't find examples of good config anywhere.

If, for example, I have a global static, assigned to an address inside and a conduit between this world and an outside addy, ACL control shall be applied (incoming) outside, inside (incoming), or both?

Any help or reference to examples of good config would be more useful.

Thanks in advance,

John

The access list would be implemented the same way. You create the statement of access using the remote resource list and the external address four of your resources.

access-list allow tcp options

The access-group command allows you to assign the access list for an interface.

group-access to the interface

The PIX looks at the package to the address of the remote source and local destination address, which you will be external IP address. The static mapping to the internal IP address occurs after the package, he went from the ACL.

I hope that helps

Kevin Kelly

Tags: Cisco Security

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You can disable a single line within the ACL?

We have 881g on 15.1 code with a ZBFW.

In an ACL, ip access list extra blah, with several lines, 10,20,30, etc... is there a way to disable a single line or make it inactive any leaving it in the config? He can't see in there, don't know if it is not possible or I'm not looking for the good things.

Thank you!

There is no "inactive" as on the ASA. An entire book would be to do something like

Note allowed tcp any any smtp log set EQ

It keeps things in the config, but it does nothing since it is a comment.

How is the ACL name of the router for fleeing?

I want to test running and have a question, the name of the ACL.

I configured the device blocking on the IDM,

-blocking interface Fastethernet0/0 =

-direction = in

-Pre IDS_PRE = ACL name

-Ask the IDS_POST = ACL name

Change a signature "ICMP-echo" to shunhost and update on the router but added new ACL under Fastethernet0/0 as the name IDS_Fastethernet0/0_in_0 and rocking it with IDS_Fastethernet0/0_in_1.

Q. why the ACL name not follow my name on the IDM?

Thanks in advance.

I think that there is some confusion about what are PreACl and PostACL.

The PreACL and PostACl entries in IDM do not affect what's name created sensor ACL on the router.

The sensor will always create an ACL that is named with the following format:

IDS___<0or1>

So for you the configuration it would create the following names of ACL:

IDS_Fastethernet0/0_in_0 and IDS_Fastethernet0/0_in_1

E he uses 2 ACL because it cannot modify an ACL that is currently applied on the interface. So if ACL 0 is currently applied then it will create 1 ACL and then apply ACLs one (which Désimpute ACL 0).

The sensor can then remove 0 and create a new ACL 0 when a change has to happen.

So, what are the pre and Post ACL names used for?

One of the biggest complaints we had with older versions of the probe was that the user could add no lines to the ACL that created the sensor.

So we came to the top with the pre and Post ACL so that users can add entries to the ACL that creates the sensor.

The user must connect on the router itself and create an ACL with little matter the name they want. Inside of the ACL, they put the entries they finally want to see at the top of the ACL that will create the sensor.

When they set up the sensor, they take the name of the ACL, they created and enter it in the field for the name of PreACL.

The user can do the same for the entries they want at the bottom of the ACL generated by the sensor by creating another ACL on the router. Put it in the Scriptures they want to see at the bottom of the created sensor ACL and then type the name in the name of PostACL field.

If the names of pre and Post ACL aren't going to use to name the ACL created sensor.

But on the contrary these ACL is read out of the router by the sensor, and these ACL entries will be placed inside the ACL, created by the sensor.

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See attached screenshot.
Rich

Here are the rules of paragraph. The original paragraph had a rule below, and divide the line into separate cells repeated for each cell.

Check if the rule is set in the style of paragraph applied to these texts (this is according to the rules of the paragraph); If so, disable it here. If not, just select all those cells and press Ctrl/Apple + Alt + J; Select 'Rule' below the menu drop down and uncheck "pronounce on.

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All,

First thanks for all assistance.

I am trying to configure my ASA5505 to accept SMTP relay and the ACL\Static I have created does not work.

Here is the config:

ASA Version 8.2 (2)

!

names of

!

interface Vlan1

nameif inside

security-level 100

IP 192.168.1.2 255.255.255.0

!

interface Vlan2

nameif outside

security-level 0

IP 12.12.12.1 255.255.255.248--> deleted

!

interface Ethernet0/0

switchport access vlan 2

!

interface Ethernet0/1

!

interface Ethernet0/2

!

interface Ethernet0/3

Speed 100

full duplex

!

interface Ethernet0/4

!

interface Ethernet0/5

switchport access vlan 3

!

interface Ethernet0/6

!

interface Ethernet0/7

!

passive FTP mode

permit same-security-traffic inter-interface

permit same-security-traffic intra-interface

access-list 101 extended permit tcp any host 12.12.12.1 eq smtp

inside_access_in of access allowed any ip an extended list

access-list sheep extended 10.10.10.0 any allowed ip 255.255.255.0

pager lines 24

Enable logging

debug logging in buffered memory

asdm of logging of information

Within 1500 MTU

Outside 1500 MTU

MTU 1500 dmz

ICMP unreachable rate-limit 1 burst-size 1

don't allow no asdm history

ARP timeout 14400

Global 1 interface (outside)

NAT (inside) 0 access-list sheep

NAT (inside) 1 0.0.0.0 0.0.0.0

public static tcp (indoor, outdoor) interface smtp 192.168.1.5 netmask 255.255.255.255 smtp

inside_access_in access to the interface inside group

Access-group outside_in in external interface

Route outside 0.0.0.0 0.0.0.0 12.12.12.2 1

Timeout xlate 03:00

Timeout conn 01:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02

Sunrpc timeout 0:10:00 h323 0:05:00 h225 mgcp from 01:00 0:05:00 mgcp-pat 0:05:00

Sip timeout 0:30:00 sip_media 0:02:00 prompt Protocol sip-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-registration DfltAccessPolicy

Enable http server

No snmp server location

No snmp Server contact

Server enable SNMP traps snmp authentication linkup, linkdown cold start

Telnet timeout 5

SSH timeout 5

Console timeout 0

management-access inside

dhcpd outside auto_config

!

a basic threat threat detection

Statistics-list of access threat detection

no statistical threat detection tcp-interception

!

class-map inspection_default

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!

!

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parameters

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message-length maximum 512

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class inspection_default

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class class by default

!

context of prompt hostname

Please help me :-(

Thank you very much!

Hi Jim,.

The configuration guide will provide a few basic examples for setting up groups of items:

http://www.Cisco.com/en/us/docs/security/ASA/asa82/configuration/guide/objectgroups.html

Single network objects are only available in 8.3 and higher. However, a group of objects to 8.2 can certainly contain a single member.

-Mike

need help to understand the ACLs and security levels

I use static NAT (nat (inside, outside) static interface) between a single host inside for the DHCP address used on the external interface. The inside interface has the security level of 100, and the outside has the security level of 0. My understanding is that for connections with State, I wouldn't need the ACL. However, nothing works unless I set up an ACL (for example, right now I have a global allow rule). What Miss me?

Even if you 'dormant', but you still have the access list applied on the interface which, by default, will have the "deny ip any any" implicitly at the end of the access eventhough list you have existing line "inactive".

To remove access from the inside of the interface completely list, you must remove the following line:

inside_access_out access to the interface inside group

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I have a problem with an ASA (5520 8.0 (4)) for lack of working with a port based acl for remote clients. I have a simple acl from a single line to split traffic, if I allowed the tunnel IP works fine, if I lock it up to TCP 3389 rdp will not work. I don't see anything in the logs and debug output, I did have a problem with a similar configuration (5510 8.0 (4) and I'm at a loss to explain it.)

Everyone knows about this problem before? I have nat exclusions etc and as I said, the tunnel only works if the acl permits all IP traffic between client and server.

THX in advance

Split-tunnel list cannot IP, if you want to restrict which ports are are sent via the tunnel vpn for your clients vpn, you need to use VPN filters under Group Policy:

http://www.Cisco.com/en/us/products/HW/vpndevc/ps2030/products_configuration_example09186a00808c9a87.shtml

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Hello. I have a little doubt about the ACL:

If I apply an ACL (denying any entry/exit telnet connections) to the interface VLAN 5 192.168.1.254 IP address is it still possible to telnet to IP 192.168.1.254? Other IP addresses on the network, I know that it is not possible.

Thank you.

You can control the protocols used for the management of the VTY. To allow only SSH, you follow these steps.

line vty 0 15

entry ssh transport

Let's say for some reason any you telnet and SSH, you follow these steps.

line vty 0 15

transport input telnet ssh

Here is a link to the configuration of SSH (router or switch will work).

http://www.packetpros.com/wiki/index.php/Cisco

Need help to debug the ACL

Hi people,

I'm trying to set up an access control list. So that I can access with success the service network as user sys, but not as long as the user test1.

I was just wondering, if anyone can be able to take a look at my code and point out my error.

DB version: * 11.2.0.1.0 *.
Platform: Windows 7 (64-bit)

Creation of ACL code:

# Create a user
CREATE USER test1 IDENTIFIED BY xxxxxx;
GRANT CONNECT TO test1;


# Create the ACL
BEGIN
  dbms_network_acl_admin.create_acl (
    acl                  => 'test_acl_file.xml',
    description          => 'A test of the ACL functionality',
    principal            => 'TEST1',
    is_grant             => TRUE,
    PRIVILEGE      => 'connect',
    start_date           => SYSTIMESTAMP,
    end_date        => NULL);
    
  COMMIT;
END;
/

# 
BEGIN
  dbms_network_acl_admin.assign_acl (
    acl       => 'test_acl_file.xml',
    host      => 'dbaexpert.com',
    lower_port  => NULL,
    upper_port  => NULL);  
    
END;
/

Test results:

User: sys

SELECT utl_http.request('http://www.dbaexpert.com')
from DUAL;

Output:

UTL_HTTP.REQUEST('HTTP://WWW.DBAEXPERT.COM')                                                                                                                                                                                                   --------------------------------------------------------------------------------------
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml"><head>                                                                                                                                                                                                                                                                       ...... 
</head>

User: test1

The statement above as a user 'test1 '.

Output:

Error starting at line 1 in command:
SELECT utl_http.request('http://www.dbaexpert.com')
from DUAL
Error report:
SQL Error: ORA-29273: HTTP request failed
ORA-06512: at "SYS.UTL_HTTP", line 1722
ORA-24247: network access denied by access control list (ACL)
ORA-06512: at line 1
29273. 00000 -  "HTTP request failed"
*Cause:    The UTL_HTTP package failed to execute the HTTP request.
*Action:   Use get_detailed_sqlerrm to check the detailed error message.
           Fix the error and retry the HTTP request.

Validation test:

select ACL,
       PRINCIPAL,
       privilege,
       IS_GRANT
from DBA_NETWORK_ACL_PRIVILEGES;

Output:

ACL||','||PRINCIPAL||','||PRIVILEGE||','||IS_GRANT  
/sys/acls/test_acl_file.xml,TEST1,connect,true

Thanks in advance

rogers42

Hello

www.dbaexpert.com differs from dbaexpert.com ACL configuration must match exactly, host names

Greetings,

Damage ten Monkshood

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Here's a way to do what you call:

I guess constant multipliers are immutable, when used on different lines...

In this example, the multipliers are stored on the first line (but can be anywhere you like).

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	50	30	60	40	30	25	25	20	20	25	20	15	10	10	1
381	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
50	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0
30	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0
60	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0
40	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0
30	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0
25	0	0	0	0	0	1	0	0	0	0

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	50	30	60	40	30	25	25	20	20	25	20	15	10	10	1
381	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
50	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0
30	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0
60	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0
40	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0
30	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0
25	0	0	0	0	0	1	0	0	0	0

	50	30	60	40	30	25	25	20	20	25	20	15	10	10	1
381	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
50	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0
30	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0
60	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0
40	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0
30	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0
25	0	0	0	0	0	1	0	0	0	0

Conversion of lines to the ACL

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