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Cisco ASA 5505: PAT / NAT between 2 IPSec Tunnels

I've the following Setup: Customer <-> HQ <-> Branchoffice The Customer has a 192.168.1.0/24 subnet. On the HQ only the VPN Gateway is in my context, 172.20.10.1 . And on the Branchoffice ...
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1answer
189 views

CISCO: conditional port-based NAT (policy-based PAT)?

I have a problem to nat-translate inbound http packets to different local_ips based on some condition (like dscp bits set). Actually the dscp bits get set on the incoming trafic using NBAR. I hope ...
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1answer
124 views

Advanced NAT - Mix PAT with NAT

I've just configured an Ubuntu Server as a router with NAT/PAT, and I'm trying to do the following thing: I work for a school that has divided its network into smaller networks connected by routers. ...
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0answers
295 views

Are my NAT rules in ASA 8.6 correct

I am working on converting some PIX rules to ASA 8.6 syntax. Do the following achieve the goal? Assumptions: outside's IP address is 66.66.66.5/29 The outside IP address I want things translated ...
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1answer
33 views

routing behaviour (PAT/NAT)

|(eth0: 84.23.13.43) +--------------+ | | | NAT router | ...
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1answer
107 views

NAT/PAT port and address selection

I am currently having some issues with TCP port reused too often (under 2 minutes) for a source NAT and I was wandering what is the algorithm used to select the IP and port for a SNAT. Here is some ...
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2answers
322 views

NAT with iptables: need help understanding

i am trying to learn NAT with iptables but i ran into some confusions. i am having two virtual machines with ips 18.43 lets say B and 18.42 C running webservers on port 80. i need to NAT every ...
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3answers
2k views

Trying to setup NAT from 2 outside IPs to the same private IP

Cisco ASA 5510 I currently have a NAT for SMTP on one outside IP to an internal IP. I need to setup 2 external IPs to NAT to the same IP internally. How can I do that? ex: 10.10.10.1 25 --> ...
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2answers
379 views

Cut over ASA global PAT address without connection drops

We're currently PATing everything from a particular subnet to the IP of an outside interface using our ASA5585 (dynamic PAT). We're experiencing pool exhaustion and therefore need to expand the global ...
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3answers
175 views

How widespread is double (or more) NAT/PAT?

Background: I'm working on a hole punching service with UDP, and in order to differentiate users under the same public IP, I've thought of making the user also send their local IP. That way, I killed ...
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0answers
268 views

Cisco RV220W ipsec with wrong ip packets

I just setted up a IPSEC lan to lan ipsec connection and since our local ip ranges colide with the remote network, I setted the local ip in the VPN police to be our external wan ip. The vpn tunnel is ...
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0answers
115 views

NAT confusion regarding cisco ASA5510

I'm setting up my first cisco firewalls. A little information first:I have two asa5510 setup in a working active/standby pair. From my ISP i have two public subnets. A /29 and a /26. On my DMZ ...
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1answer
55 views

Port Address Translation via Local Desktop

Recommendations for how I might configure Windows and Macs to perform port address translation locally. Need to test a web service that sits on port 99. The client application I am testing (think ...
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1answer
600 views

cisco 1800 series NAT port forwarding for mail sending

I have centOS mail & web servers configured in a computer in LAN. My cisco router carries a external IP needs translation so that any request to my global IP at http port will be forwarded to my ...
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1answer
206 views

CISCO PAT 2 different outside ports, on one ip-address, to 1 inside port on one ip-address

I have a problem with our new corporate CISCO ASA5510 firewall. With our old firewall it was possible to do the following PAT: outside -> inside 1.1.1.1:22 -> 192.168.1.2:22 1.1.1.1:443 -> ...
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1answer
285 views

PAT can't access website, but NAT can

My original question was here: PAT users can't access website, but NAT users can? I got a static IP now and just assumed it worked because i got no response after it was enabled, but then i was told ...
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1answer
256 views

PAT users can't access website, but NAT users can?

I'm a web developer who makes and maintains websites so I don't have extensive knowledge of networking. I work for a small company that uses a third party hosting service to host our website. One of ...
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2answers
11k views

How do I combine static and dynamic DHCP leases on a Cisco router?

Basically, what I need is super similar to the unanswered cisco forum question below: https://supportforums.cisco.com/message/3139749#3139749 I have a Cisco 850 Series router. I have configured a ...
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3answers
471 views

NAT / PAT Theoretical Question

Given the following simplistic network [IMG]http://www.vbforums.com/picture.php?albumid=18&pictureid=47[/IMG] Would it be possible to construct NAT / PAT pools such that the PC's attached to ...
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5answers
490 views

wrt54g Port Address Translation

I have 1 server that is already taking up port 80 (a live site), and I have another server running wordpress mu that can ONLY run on port 80. Is there a way with my router to transfer port 81 to ...