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.

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> 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 ?
> >
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>
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> *** For a current patch list, tips, handy files and books on
> BorderManager, go to http://www.craigjconsulting.com ***
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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.
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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)
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I have a situation where I need to create a site-to-site VPN between an ASA 5505 using IOS 7.2 and a Sonicwall NSA4500. The problem arises in that the LAN behind the Cisco ASA has the same subnet as a currently existing VPN created on the Sonicwall. Since the Sonicwall can't have two VPNs both going to the same subnet, the solution is to use policy NAT on the ASA so that to the Sonicwall, the new VPN appears to have a different subnet.
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interface Vlan1
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Hi,
To be honest it should work in the way I mentioned. I am not sure why it would change the order of the NAT configurations. I have run into this situation on some ASA firewalls running the older software (older than 8.2) and the reordering of the configurations has always worked.
So I am not sure are we looking at some bug or what the problem is.
I was wondering if one solution would be to configure all of the Static NAT / Static PAT as Static Policy NAT/PAT
I have gotten a bit rusty on the older (8.2 and older) NAT configuration format as over 90% of our customer firewalls are running 8.3+ software.
I was thinking of this kind of "static" configuration for the existing Static PAT configurations if you want to try
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access-list STATICPAT-TCP4125 permit tcp host eq 4125 any
static (inside,outside) tcp interface 4125 access-list STATICPAT-TCP4125
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Naturally you would add the Static Policy NAT for the VPN first.
Again I have to say that I am not 100% sure if this was is the correct format maybe you can test it with a single service that has a Static PAT. For example the Static PAT for RDP (TCP/3389). First entering the Static Policy NAT then removing the Static PAT and then entering the Static Policy PAT.
Remember that you should be able to test the translations with the "packet-tracer" command
For example
packet-tracer input outside tcp 1.1.1.1 12345
- Jouni

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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.
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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.
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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
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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"
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outside = is the interface towards which the host is NATed
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Hi,
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Cheers,
Devon

I just searched documentation and see that it's 5000 ports for tcp. That
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Cheers,
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>>> 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
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> that
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>
> 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 ***

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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.
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==========================
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