Dynamic NAT on selected machines

Hi
What is the best way to setup dynamic NAT if I only wanted it to function on
a group of 30 workstations.
I was considering putting these workstations into a seperate subnet, but
doesn't dynamic nat pick up all subnets on the private interface?
Any Ideas?
Thanks
Peter H

Peter,
> What is the best way to setup dynamic NAT if I only wanted it to function on
> a group of 30 workstations.
> I was considering putting these workstations into a seperate subnet, but
> doesn't dynamic nat pick up all subnets on the private interface?
indeed, this won't work.
You can use NAT for everyone, and then regulate the access with packet
filters. It's a limitation of the Netware nat, indeed.
Caterina
Novell Support Connection Volunteer Sysop

Similar Messages

Dynamic NAT parameters

Hi,
I have an application that is unhappy running via dynamic NAT. The app
developers are asking me if I can turn on sticky sessions in BM's dynamic
NAT. Are there any options for tuning dynamic NAT in BM that could help?
Cheers,
Devon

I just searched documentation and see that it's 5000 ports for tcp. That
will be easy to hit. The documentation says that it will just re-use the
oldest connections in a rolling fashion. I'm wondering whether that's
working properly or whether something else in the system is keeping the
state for longer.
Cheers,
Devon
>>> On 9/08/2007 at 11:21, Devon Heaphy<[email protected]>
wrote:
> Still testing, but it appears to. Part of the problem is that the
> application is very chatty and constantly opens new connections instead
> of
> using existing ones. I think the reason static NAT appears to work is
> that
> there are more source ports available for a given machine to use.
>
> Do you know the upper limit of dynamic NAT connections through BM?
>
> Cheers,
> Devon
>
>>>> On 7/08/2007 at 4:44, Craig Johnson<[email protected]> wrote:
>> In article <[email protected]>, Devon Heaphy
> wrote:
>>> I have an application that is unhappy running via dynamic NAT. The app
>>> developers are asking me if I can turn on sticky sessions in BM's
>> dynamic
>>> NAT. Are there any options for tuning dynamic NAT in BM that could
help?
>>>
>> No.
>>
>> Does it work via static NAT?
>>
>> Craig Johnson
>> Novell Support Connection SysOp
>> *** For a current patch list, tips, handy files and books on
>> BorderManager, go to http://www.craigjconsulting.com ***

Create a dynamic form where selected text boxes appears, based on options chosen in a drop-down box

HELP!!! Can anyone please provide some guidance on how to create a dynamic form where selected text boxes appears, based on options chosen in a drop-down box.
I have a form which – based on the department that's selected from a drop-down box – will have different form fields/text boxes, etc, made available.
Is this possible in LiveCycle, if so, can you please provide the script/info - as needed.
Thanks,

In the preOpen event of the second dropdown list you put something like (in formCalc):
if (dropdown1 == 1) then
$.clearItems()
$.setItems("Year, 2 Year, 3 Year")
elseif (dropdown1 == 2) then
$.clearItems()
$.setItems("3 Year, 4 Year")
endif

How to configure inbound ruleset in dynamic nat.

Hi ,
I have a doubt on configure the inbound rules for dynamic nat. I want to allow my web server (172.16.101.115) able connect from outside with tcp/443.
How do I configure the inbound ruleset for allow public connect to my webserver with tcp/443 in dynamic nat.
Here I have draw a diagram and some configuration i have configure in my ASA 8.2. Please correct me if I was wrong config it.
Public IP: 10.10.10.28
Private IPs:
172.16.101.115
172.16.101.116
172.16.101.117
172.16.101.118
172.16.101.119
172.16.101.120
access-list Web_nat permit ip host 172.16.101.115 any
access-list Web_nat permit ip host 172.16.101.116 any
access-list Web_nat permit ip host 172.16.101.117 any
access-list Web_nat permit ip host 172.16.101.118 any
access-list Web_nat permit ip host 172.16.101.119 any
access-list Web_nat permit ip host 172.16.101.120 any
nat (firewall-dmz) 1 access-list Web_nat
global (firewall-outbound) 1 10.10.10.28
access-list fw-outbound-access permit tcp any host 10.10.10.28 eq 443 //allow outside connect to my external ip.
access-list fw-dmz-access permit tcp any host 172.16.101.115 eq 443 //allow my translation ip connect to my webserver with tcp/443.

Hi,
I am not sure what you are attempting to configure here.
But what the NAT configuration above does is do a Dynamic PAT for all the servers on the "firewall-dmz" to a single IP address towards the "firewall-outbound"
This Dynamic translation doesnt however enable connections to be initiated from behind the "firewall-outbound" interface. When your hosting a server which needs a NAT towards the users then the NAT type has to be Static NAT or Static PAT.
Static NAT will essentially use up one public IP address for just the single local host/server.
Static PAT will do a Port Forward from the public IP address and public port to the local IP and local port. And this is most commonly used with environments which only public IP address is the one that the ASA holds in its WAN interface.
A typical Static NAT configuration is this
static (inside,outside) 1.1.1.1 10.10.10.10 netmask 255.255.255.255
Where
inside = is the interface behind which the host is
outside = is the interface towards which the host is NATed
1.1.1.1 = is the public NAT IP address for the host
10.10.10.10 = is the local IP address of the host
A typical Static PAT configuration is this
static (inside,outside) tcp interface 80 10.10.10.10 80 netmask 255.255.255.255
Where
tcp = specifies the protocol for which the Static PAT configured
interface = specifies that we will be using the public IP address of the destination interface "outside" as the public IP address for this single Port Forward.
80 = first "80" specifies the public port visible to users behind the destination interface
80 = second "80" specifies the actual local port on which the local host is listening on
Hope this helps
- Jouni

Specify database field's name dynamically in a select statement

Hi to all!!
I have the following problem:
I got a paraneters statement where the user is to choose the month of the year,once i have the month, i need to make a query on a database(select field_name) of a field whose name deppend on the month that the user chose before, is it possible?
What I need? I think i can do it using field simbols but I've never worked with field simbols and I have no time to learn it now.
Thanks everybody

Hi,
<b>Below code is the Simple one:</b>
<b>DATA: DYN_FIELD(15)
SELECT single (DYN_FIELD)
into corresponding fields of <IT_TABLE>
from <TABLE> where XXX = YYY.</b>
This is the complex program, have a look at it ...
REPORT zdany_dynamic_select.
* We use some parameters to dynamically control the select, this is not very
* clever but this is just a test program !!
PARAMETER : p_tabnam TYPE tabname DEFAULT 'SFLIGHT',
            p_selfl1 TYPE edpline DEFAULT 'CARRID',
            p_selfl2 TYPE edpline DEFAULT 'CONNID',
            p_selfl3 TYPE edpline DEFAULT 'FLDATE',
            p_selfl4 TYPE edpline DEFAULT 'PRICE',
            p_selfl5 TYPE edpline DEFAULT 'CURRENCY',
            p_where1 TYPE edpline DEFAULT 'PRICE > 300',
            p_where2 TYPE edpline DEFAULT 'AND CURRENCY = ''EUR'''.
FIELD-SYMBOLS : <lt_outtab> TYPE ANY TABLE,
                <ls_outtab> TYPE ANY,
                <l_fld> TYPE ANY.
DATA: lt_where    TYPE TABLE OF edpline,
      lt_sel_list TYPE TABLE OF edpline,
      lt_group    TYPE TABLE OF edpline,
      l_having    TYPE string,
      l_wa_name   TYPE string,
      l_sel_list TYPE edpline,
      dref        TYPE REF TO data,
      itab_type   TYPE REF TO cl_abap_tabledescr,
      struct_type TYPE REF TO cl_abap_structdescr,
      elem_type   TYPE REF TO cl_abap_elemdescr,
      comp_tab    TYPE cl_abap_structdescr=>component_table,
      comp_fld    TYPE cl_abap_structdescr=>component.
TYPES: f_count TYPE i.
* Creation of the output table including a non standard field, f_count
* see ABAP FAQ #14 for more information on this topic
struct_type ?= cl_abap_typedescr=>describe_by_name( p_tabnam ).
elem_type   ?= cl_abap_elemdescr=>describe_by_name( 'F_COUNT' ).
comp_tab = struct_type->get_components( ).
* We remove the unnecessary fields
LOOP AT comp_tab INTO comp_fld.
   IF comp_fld-name <> p_selfl1 AND
      comp_fld-name <> p_selfl2 AND
      comp_fld-name <> p_selfl3 AND
      comp_fld-name <> p_selfl4 AND
      comp_fld-name <> p_selfl5.
         DELETE TABLE comp_tab WITH TABLE KEY name = comp_fld-name.
   ENDIF.
ENDLOOP.
comp_fld-name = 'F_COUNT'.
comp_fld-type = elem_type.
APPEND comp_fld TO comp_tab.
struct_type = cl_abap_structdescr=>create( comp_tab ).
itab_type   = cl_abap_tabledescr=>create( struct_type ).
l_wa_name = 'l_WA'.
CREATE DATA dref TYPE HANDLE itab_type.
ASSIGN dref->* TO <lt_outtab>.
CREATE DATA dref TYPE HANDLE struct_type.
ASSIGN dref->* TO <ls_outtab>.
* Creation of the selection fields and the "group by" clause
APPEND p_selfl1 TO lt_sel_list.
APPEND p_selfl1 TO lt_group.
APPEND p_selfl2 TO lt_sel_list.
APPEND p_selfl2 TO lt_group.
APPEND p_selfl3 TO lt_sel_list.
APPEND p_selfl3 TO lt_group.
APPEND p_selfl4 TO lt_sel_list.
APPEND p_selfl4 TO lt_group.
APPEND p_selfl5 TO lt_sel_list.
APPEND p_selfl5 TO lt_group.
APPEND 'COUNT(*) AS F_COUNT' TO lt_sel_list.
* creation of the "where" clause
APPEND p_where1 TO lt_where.
APPEND p_where2 TO lt_where.
* Creation of the "having" clause
l_having = 'count(*) >= 1'.
* THE dynamic select
SELECT          (lt_sel_list)
       FROM     (p_tabnam)
       INTO CORRESPONDING FIELDS OF TABLE <lt_outtab>
       WHERE    (lt_where)
       GROUP BY (lt_group)
       HAVING   (l_having)
       ORDER BY (lt_group).
* display of the results
LOOP AT <lt_outtab> ASSIGNING <ls_outtab>.
   LOOP AT comp_tab INTO comp_fld.
      ASSIGN COMPONENT comp_fld-name OF STRUCTURE <ls_outtab> TO <l_fld>.
      WRITE: <l_fld>.
   ENDLOOP.
   SKIP.
ENDLOOP.
Have a look at the link, this link will have lot of examples :-
http://www.susanto.id.au/papers/DynOpenSQL.asp
Regards
Sudheer

Dynamic field in Select Statement

I am able to create a dynamic statement to insert into the where clause of my sql, but I am unable to dynamically create a select statement. Oracle Reports produces the following error:
REP-0499: Column " selected by the query is incompatible with report definition.
Here is an example of my select:
Select
&dynamic_field
from
any_table
Any help is appreciated.

I figured it out. Thanks

ASA 8.2 - Static NAT and Dynamic NAT Policy together

Hello community,
I have the following problem using a ASA with version 8.2.
1) I have this segment on interface Ethernet 0/0: 192.168.1.0/24
2) Through interface Ethernet 0/1 I will reach several servers using the same source IP, but other servers must be reached using only one IP, for example 192.168.1.70
so, I have configured a Static NAT Rule from interface Ethernet0/0 to interface Ethernet 0/1 which NAT the source IPs to the same IPs: 192.168.1.0/24->192.168.1.0/24. Also I have configured a Dynamic NAT Policy that states when destination IP is "server list" then all the source IPs must be translated to 192.168.1.70.
PROBLEM: when testing it...always the static wins....and Dynamic is never analyzed...Also, no priority for the NAT policy and NAT rules can be done on ASDM...what can I do? is there a way to do this on ASDM or CLI? (preferrely at ASDM)
Thanks for your reply and help!

Hello community,
I have the following problem using a ASA with version 8.2.
1) I have this segment on interface Ethernet 0/0: 192.168.1.0/24
2) Through interface Ethernet 0/1 I will reach several servers using the same source IP, but other servers must be reached using only one IP, for example 192.168.1.70
so, I have configured a Static NAT Rule from interface Ethernet0/0 to interface Ethernet 0/1 which NAT the source IPs to the same IPs: 192.168.1.0/24->192.168.1.0/24. Also I have configured a Dynamic NAT Policy that states when destination IP is "server list" then all the source IPs must be translated to 192.168.1.70.
PROBLEM: when testing it...always the static wins....and Dynamic is never analyzed...Also, no priority for the NAT policy and NAT rules can be done on ASDM...what can I do? is there a way to do this on ASDM or CLI? (preferrely at ASDM)
Thanks for your reply and help!

Dynamic NAT ASA 8.4 Packet Tracer not working

Hi guys,
I've tried to ping and go to a site from 192.168.1.6 to 10.10.10.12, but it's not working. I've followed a couple dynamic NAT tutorials, but I can't figure out what I'm missing. The config is below, and I'd appreciate any help.
Thanks!
ASA Version 8.4(2)
hostname ciscoasa
names
interface Ethernet0/0
switchport access vlan 2
interface Ethernet0/1
interface Ethernet0/2
interface Ethernet0/3
interface Ethernet0/4
interface Ethernet0/5
interface Ethernet0/6
interface Ethernet0/7
interface Vlan1
nameif inside
security-level 100
ip address 192.168.1.2 255.255.255.0
interface Vlan2
nameif outside
security-level 0
ip address 10.10.10.2 255.0.0.0
object network inside-subnet
subnet 192.168.1.0 255.255.255.0
object network inside-subnet
nat (inside,outside) dynamic interface
telnet timeout 5
ssh timeout 5
dhcpd address 192.168.1.5-192.168.1.35 inside
dhcpd auto_config outside

Thanks guys. I'm one step closer. I can ping from 192.168.1.0 to 10.0.0.0, but I can't open a webpage. I try visiting 10.0.0.6/index.html in packet tracer and get a "Request time out" message. I tried to mirror the ACL for www, but it's not working.
Does anyone have a suggestion? My updated config is below.
Thanks!
ASA Version 8.4(2)
hostname ciscoasa
names
interface Ethernet0/0
switchport access vlan 2
interface Ethernet0/1
interface Ethernet0/2
interface Ethernet0/3
interface Ethernet0/4
interface Ethernet0/5
interface Ethernet0/6
interface Ethernet0/7
interface Vlan1
nameif inside
security-level 100
ip address 192.168.1.1 255.255.255.0
interface Vlan2
nameif outside
security-level 0
ip address 10.0.0.1 255.0.0.0
object network inside-subnet
subnet 192.168.1.0 255.255.255.0
object network outside-subnet
subnet 10.0.0.0 255.0.0.0
access-list TEST extended permit icmp any any echo-reply
access-list TEST extended permit tcp any any eq www
access-list http extended permit tcp any any eq www
access-list http2 extended permit udp any any eq www
access-group TEST in interface outside
object network inside-subnet
nat (inside,outside) dynamic interface
telnet timeout 5
ssh timeout 5
dhcpd auto_config outside
dhcpd address 192.168.1.5-192.168.1.35 inside
dhcpd enable inside

Dynamic NAT & Dynamic/TCP + Dynamic/UDP filters

I've enabled dynamic NAT on BM38sp2a... Is it important to setup
dynamic/tcp and dynamic/udp filters if running ipflt? What are the
purposes of the two filters?
Jimmy

[email protected] wrote:
> I've enabled dynamic NAT on BM38sp2a... Is it important to setup
> dynamic/tcp and dynamic/udp filters if running ipflt? What are the
> purposes of the two filters?
>
> Jimmy
Please see my reply in the packet filtering forum.
Caterina
Novell Support Connection Volunteer Sysop

PcAnywhere and dynamic NAT

I have Bordermanager 3.51 that uses dynamic NAT on the public interface
connected to DSL with a static IP address. I have followed TID #
10024898 " Creating filter exception for PCAnywhere".
I have double checked settings of the filter exceptions but still cannot
remote access a internal host using PcAnywhere v 11.0. My question is
should I be using dynamic NAT or static nat or a static/dynamic nat
configuration ?
Thanks,
Karl

> In article <HmmFc.236$[email protected]>, wrote:
> > . My question is
> > should I be using dynamic NAT or static nat or a static/dynamic nat
> > configuration ?
> >
> If you want inbound pcAW traffic, you have two choices when NAT is
> involved: static NAT, or generic proxies. (Both are described in my
> BMgr / Filtering books at the URL below).
>
> You will not be able to get to an internal PC with just dynamic NAT
> enabled. There is no way to route the packets in then.
>
> Craig Johnson
> Novell Support Connection SysOp
> *** For a current patch list, tips, handy files and books on
> BorderManager, go to http://www.craigjconsulting.com ***
Thanks Craig for your direction. I will check out the URL
Happy 4th !
>

9.0 can a dynamic nat be used over ipsec vpn?

9.0 can a dynamic nat be used over ipsec vpn?
we have a vpn up and working between two asa's and when we run the traffic through a static nat rule the traffic passes over the vpn. When we use a dynamic nat the traffic does not get picked up by the vpn ACL.
we are disabling the nat rules to switch back and forth so even when we use the same source destination the result is the same.
Am I missing something with 9.0 code versions? If i disable all nats and pass the traffic it goes over the vpn.
So it seems when using the dynamic nat statement it pushes the traffic to the outside interface without looking at the vpn acl. Please let me know if I am off base I am a newb on post 8.3 code.
Thanks

I didn't do that at first because I remember reading something about in ver 9 to only use the unnatted IP because of order of ops. That seemed weird to me at the time.
Yes it seems that you need the nat ip like always. Should have just went with my gut on that.
Thanks

Dynamical declaration of SELECT-OPTIONS / RANGE possible

Hi fellow programmers,
does anybody know whether there is a way to declare a
SELECT-OPTION respectively a RANGE dynamically during
runtime? I have both the name of the range to be created
and the DDIC-referencefield stored in variables.
Thanks in advance for your appreciated help.
Andreas

Hi Andreas,
DYNAMIC PROGAM SHOWS SELECTION-SCREEN.
1 Sap does not allow execution of dynamic programs from memory.
(dynamic means, only in memory, not in database)
2. However, it allows execution of dynamic FORM/ENDFORM.
3. But your requirement is of selection-screen using parameters and select-options.
4. Hence, we can use the concept of DYNAMIC PROGRAM
   (build the program code in an internal table)
   using command
   INSERT REPORT 'ZDYN01' FROM itab.
   THIS WILL SAVE / OVERWRITE THE PRGRAM IN DB.
   HENCE, BE CAUTIOUS.
5. Just Copy/Paste this sample program
   It will generate a dynamic program called ZDYN01.
   it will also execute it and
   SHOW SELECTION-SCREEN
   of the DYNAMIC PROGRAM.
6. You may build up yuour own logic
    of constructing selection-screen from
     required data stored in tables.
7.
REPORT abc.
Data
DATA : BEGIN OF itab OCCURS 0,
       l(72) TYPE c,
       END OF itab.
DATA : prog(8) TYPE c.
Make Dynamic Program
CLEAR itab.
itab-l = 'REPORT ABC.'.
APPEND itab.
itab-l = 'PARAMETERS : MATNR LIKE MARA-MATNR.'.
APPEND itab.
itab-l = 'START-OF-SELECTION.'. APPEND itab.
itab-l = 'WRITE :/ MATNR.'. APPEND itab.
Generate Program
INSERT REPORT 'ZDYN01' FROM itab.
COMMIT WORK. "----- COMMIT NECESSARY FOR DB
*------ Call Report
SUBMIT zdyn01 VIA SELECTION-SCREEN.
HOPE THE ABOVE HELPS.
Regards,
Amit M.

Static/Dynamic NAT Conflict

My static NAT configuration is somehow conflicting with my dynamic NAT configuration. Am I doing something wrong?
ip nat inside source list 1 interface GigabitEthernet0/0 overload
access-list 1 permit 192.168.126.0 0.0.0.255
access-list 1 permit 10.18.0.0 0.0.255.255
ip nat inside source list 1 interface GigabitEthernet0/0 overload
ip nat inside source static tcp 192.168.126.4 20 xx.xx.xx.19 20 extendable
ip nat inside source static tcp 192.168.126.5 25 xx.xx.xx.19 25 extendable
ip nat inside source static tcp 192.168.126.5 80 xx.xx.xx.19 80 extendable
ip nat inside source static tcp 192.168.126.5 443 xx.xx.xx.19 443 extendable
ip nat inside source static tcp 192.168.126.7 3101 xx.xx.xx.19 3101 extendable
ip nat inside source static tcp 192.168.126.4 3389 xx.xx.xx.19 3389 extendable
ip nat inside source static tcp 192.168.126.7 5901 xx.xx.xx.19 5901 extendable
ip nat inside source static tcp 192.168.126.20 25 xx.xx.xx.20 25 extendable
ip nat inside source static tcp 192.168.126.20 80 xx.xx.xx.20 80 extendable
interface GigabitEthernet0/0
description Outside Interface
ip address xx.xx.xx.18 255.255.255.248
ip access-group Incoming in
ip access-group Outgoing out
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat outside
no ip mroute-cache
duplex auto
speed auto
ntp disable
no cdp enable
hold-queue 32 in
hold-queue 100 out

Thanks for the help.
I tried modifying the access list as you suggested but ran into problems. The host at 192.168.126.4 is my DNS server and the updates prevented it from forwarding queries to external DNS servers. I think I am running into problems because I dont' know general rules for configuring dynamic NAT to accomodate client PCs and static NAT to accomodate servers at the same time. From the issues I am having it seems there are general rules for dividing the two classes of hosts which I just don't know. My external interface has a .18 address which all my client PCs get NAT'ed through and then I have static NAT entries NAT'ing to .19 and .20 for internal services such as DNS, SMTP, HTTP etc. I thought that would divide the two however certain 'things' conflict, such as XBOX Live connections. If I remove my static NAT entries then I can connect to XBOX Live.

[Question] Dynamic NAT on 2 different networks

Hi,
I just want to ask if its possible to have same dynamic translation within 2 different networks like:
interface gig 0/1
1.1.1.1 255.255.255.0 (LAN Connection w/ DHCP enabled)
inteface gig 0/2
2.2.2.1 255.255.255.0 (Wireless Connection w/ DHCP enabled)
Actually, the scenario was 1.1.1.1 is my LAN connection and 2.2.2.1 are my Wireless connection.
Hope this merits their favorable response. Thanks.

Hi,
Do you mean that you want both of the said LAN networks to use Dynamic NAT/PAT towards a third interface on the ASA?
If you simply want to use the same NAT/PAT address for 2 different networks on the ASA then you can use the following configurations as example
These are PAT translations to a single IP address. Using a NAT Pool would change the configurations slightly.
For ASA software 8.2 and below
global (outside) 100 3.3.3.1
nat (inside) 100 1.1.1.0 255.255.255.0
nat (wireless) 100 2.2.2.0 255.255.255.0
Where
outside,inside and wireless = Interface "nameif" on the ASA firewall
100 = Is just an ID number for the NAT configuration. You can use other one also
For ASA software 8.3 and after
object-group network PAT-SOURCE-NETWORKS
network-object 1.1.1.0 255.255.255.0
network-object 2.2.2.0 255.255.255.0
nat (inside,outside) after-auto source dynamic PAT-SOURCE NETWORKS interface
nat (wireless,outside) after-auto source dynamic PAT-SOURCE NETWORKS interface
Where
PAT-SOURCE-NETWORKS = Is an "object-group" where you can define the source networks for the NAT/PAT rule
Hope this helps Please if you found the information helpfull
Feel free to ask more if this didnt answer your question.
- Jouni

Unable to browse OPC Server from the selected machine / Error -2147221163 occurred at GetOPCServerList.vi

Hallo,
I just installed LabVIEW 8.2 DSC-Module and tried to configure a OPC Client Instance. I get the Error "Unable to browse OPC Server from the selected machine / Error -2147221163 occurred at GetOPCServerList.vi". I have no OPC-Server installed, but is there no Demo-Server?
Thank you
Thomas

This issue might be related to opcenum not being registered correctly. Please follow the steps explained in this document to fix this problem.
As OPCdemo follows the OPC 1.0 standard it is not supported by the OPC client in LV DSC 8.x which supports OPC 2.0 and 3.0 servers. You can download an OPC 3.0 compliant demoserver from Matrikon.
I hope that helps,
Jochen Klier
National Instruments Germany

Dynamic NAT on selected machines

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