Possible To Have Public IP To More Internal Addresses?

Oct 24, 2011

Is it possible to have more public addresses to more internal addressees? I have an internet provider which is in control of my router and he is telling me it is not possible. It's a Cisco router and I have static IP address.

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Keeping Internal IP Addresses The Same?

Jan 23, 2012

I have multiple devices running on my home network. Every once in a while my wireless router starts playing up and I have to reset it.Whenever this happens, it changes the internal IP addresses of the devices. Is there a way to make the router keep the same internal ip address for each device? ie Laptop stays at 192.168.1.8I have a few forwarded ports for remote access to certain pieces of software, so each time the address changes, I have to go in and change these details, which is quite frustrating.

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Get Public IP Addresses From Motorola Sbv5121e Modem?

Oct 10, 2011

I have this motorola sbv5121e modem. I can connect one PC to it directly. When I try to connect a secont PC, via a switch, it won't give out 2 IP addresses. Moreover, I see that the one IP address it does give out, is a public one (like 22.x.x.x). I'm on XP and show the addresses with ipconfig. Is this modem defective hardware-wise, or is some setting internally wrong? How can I see what the DHCP server does?

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Multiple Public IP Addresses From Different Subnets On 1 Router

Feb 20, 2012

Is it possible to have multiple public IP addresses that are from different subnets going through one router? I have been told that this is not possible with most routers and that I would have to spend a lot of money on a router to be able to do it. I am still not totally clear on what defines a subnet even after reading up on them. What I am trying to achieve:

-My office has 10 computers.

-All would be connected to one router.

-My internet service provider has provided me with 10 public IP addresses, that are all very varied (which I asked for)

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Cisco WAN :: Multiple Public IP Addresses On 877W

Nov 23, 2011

I would like to configure an 877w I just bought. It's connecting to a UK ADSL2+ link.I'm a penetration tester and I want to put the Cisco router in front of my existing firewall which has an IPS on it, so that it doesn't get in the way of port scans and vulnerability scans. My ISP has issued me with 14 usable addresses a/240 subnet and basically I want to be able to use the route with just the public IP addresses. I have configured Cisco routers before, but never with this type of configuration. It's always been single public IP address  NAT'd through to one or two internal LAN's.
 
It will be nice if I could assign the wireless and fast ethernet ports to the same VLAN using the public addresses. I don't want to use DHCP I'm quite happy statically assigning IP addresses to the computers wireless and LAN interfaces. I am reasonably certain this is possible because not sure how to do it and a little busy at the moment carrying out penetration tests.

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Cisco VPN :: 1941 Make VPN With Public IP Addresses

Mar 27, 2012

i have Cisco 1941(with security lic) and i have been asked to make a VPN with public IP addresses so there will be no info about internal networks. Other side has ASA 5520 and they provided me with 2 public IP addresses. i have done many different VPNs but this is first with public IP addresses and i cannot figure it out.So here is the question:

1. How to do it ? (maybe some example)

2. Do i need two public IPs to do it ?

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Cisco Firewall :: Public IP Addresses On DMZ (SA520)

Feb 29, 2012

I just bought an SA520 to replace my existing FW.
 
The thing is that I have private IP adresses on my LAN, and I have been issued a public IP network for my DMZ by my ISP.
 
Meaning I want to NAT my LAN but not my DMZ, but I can't seem to find a way in the 520 to do that. I can only find the oprion to turn off NAT all together.

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Cisco Routers :: RVS4000 One-to-One NAT / Multiple Public IP Addresses

Mar 11, 2013

If there are any small business routers that offer one-to-one NAT? I have several public IP addresses assigned to me by CenturyLink. I have two servers that provide email and web hosting for two different domains. I want to put the client machines on one VLAN (VLAN Z) and assign it a public IP address (to keep server traffic separate). I want to put each server on its own VLAN (VLANs X & Y) and assign each server its own public IP address. I need the router to be able to provide a firewall and port forwarding for each VLAN. I also need to be able to route traffic between VLANs so the clients on VLAN Z can access their email and the websites on VLANs X and Y. I also need to be able to route DNS traffic between VLANs so each server can provide name resolution for their respective domains.
 
So, is this possible with a small business router or do I need to look at something different? I'm fairly certain this configuration is not possible with my current Cisco RVS4000. What it boils down to is I need a router that is capable of having multiple public IP addresses on the same interface and to forward those public addresses to private VLAN subnets. This would be one-to-one NAT if I understand it correctly..

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Cisco Firewall :: 1841 To Hold Public IP Addresses Behind ASA

Apr 21, 2013

I am trying to figure out how this works. I have an ISP device that connects to my 1841. ISP and fa0/0 hold the /30 WAN addresses. Fa0/1 hold one of the public IPs, lets say 1.1.1.1/29. Then the outside interface of the ASA holds 1.1.1.2/29. Now I have two routes in the 1841, one for default route going back to the ISP device, and a route for the 1.1.1.0/29 network going to the ASA.Now I have 4 more publics I can use 1.1.1.3 - 6. I do not want to assign these IPs to the servers, but yet just NAT them. I know this is possible, but cant figureI took an internal host and did a one to one static NAT from private to public. Packet tracer says my NAT rules are ok. Allowed all IP traffic for testing and still can't ping the server.

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Cisco Routers :: RVS4000 - Multiple Public IP Addresses Go Into LAN

Aug 22, 2012

The client has a Cisco RVS4000. There are 3 Internet devices need to be accessed from the outside and will use one public IP for one device. I don't see any options to setup on Cisco RVS4000 to do 3 NATs. If Cisco RVS4000 doesn't work in this situation, which router will do?

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Cisco WAN :: 5505 Route Public Ip Addresses To DMZ Port

Sep 25, 2011

I have a customer thats got a Linksys router now, that has a DMZ port.The DMZ port is configurede to it routes the extra public ip-adress to the DMZ port it has.At the DMZ port they have another router connected, where they routes the public ip-adresses på some other devices.How can i make this setup on a Cisco ASA 5505 (With the Security Plus licens)What i have to do is to replace the Linksys router, and make it so, so it works like it was before with the Linksys.

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Cisco WAN :: 2821 How To Assign For A Port One / More Public Addresses

Nov 2, 2011

I just thought if it's possible to make sure that only approved IP addresses for each of divisions of a company can be used.How can I assign for a port one/more public addresses and be sure that only this port is using it/them. Thing is I have only one 24 bit public Network ID provided to me by ISP. One IP address of the range is used for ISP's gateway. So I have 253 addresses to be distributed among divisions. However to avoid IP address conflicts I have to be sure that only dedicated for a division IP address/es is/are used by the division.
 
Router is 2821.
Switch is 2950.

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Cisco Firewall :: Multiple Public IP Addresses On ASA 5505?

Sep 8, 2011

Is it possible to two or more public IP Addresses bound to a Cisco ASA 5505 running 8.4(2).

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Networking :: WNDR3700 To Add Public IP Addresses To Private Network

May 26, 2011

I have set up a private domain network at home. I have a domain controller, a DNS server, and a DHCP server all running on one Windows 2003 Server machine. I have about 10 other machines around the house, getting their IP addresses from this DHCP server.

I have a Netgear WNDR3700 router.

I am about to get 5 public IP addresses from my ISP, and I would like to make some of these machines publicly accessible (while still accessible from the other machines in the network).

I found this link that says on my web server (one of the public machines), that I should use a second NIC and set that up to connect to my router (and get a private IP address from my DHCP server).

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Cisco :: Cannot Access Internal To Dmz With Public Ip

Jan 4, 2013

I cannot access Internal network to DMZ with public ip but i can access public servers in DMZ with External network.

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Netgear FVX538 / Setup Multiple Public IP Addresses In Network

Aug 9, 2011

I have a Netgear ProSafe VPN Firewall FVX538. But I also have 10 Public IP Addresses that I will like to setup for three web services. So how do I set this up. With multiple routers. Or can my Netgear FVX538 take multiple Public IP Addresses to the same ports. If not how can setup multiple routers. one being the main one.

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Cisco Routers :: Does RSV4000 Support Multiple Public IP Addresses

Aug 3, 2011

I have a customer that has an RSV4000 Router. The customer has also purchased a block of 5 usable public IP addresses. I need to be able to assign these public IP addresses to printers either by configuring a static IP on each printer directly or thru IP mapping or some other method. Does the RSV4000 support using multiple public IP addresses and if so what configuration is needed in the router for the printers to be seen by the outside world.

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Cisco Firewall :: ASA 5510 - How To Assign Multiple Public IP Addresses

Dec 2, 2010

I'm currently replacing my ASA 5505 with a 5510. I have a range of public IP addresses, one has been assigned to the outside interface by the setup wizard (e.g. 123.123.123.124 ) and another I would like to NAT to an internal server (e.g 192.168.0.3 > 123.123.123.125). On my asa 5505 this seemed fairly straigh forward, i.e. create an incoming access rule that allowed SMTP to 123.123.123.125 and then create a static nat to translate 192.168.0.3 to 123.123.123.125. Since I've tried to do the same on the 5510 traffic is not passing through so I'm assuming that the use of additional public IP addresses is not handled in the same way as the 5505? I also see that by default on the 5505, 2 VLANs are created, one for the inside and one for the outside, where as this is not the case on the 5510. Is the problem that VLANs or sub-interfaces need to be created first?  I'm doing the config via ASDM.
 
Everything else seems to OK i.e. access to ASDM via 123.123.123.124, outbound PAT and the site-to-site VPN.

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May 1, 2013

I have a requirement to nat two public ip addresses to same interanl ip address.  Is this possible on ASA version 9.1?

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Nov 27, 2012

On an 887VA running 15.x IOS, is there a way to support both public and private addresses on inside vlans? The outside interface is public static ip, so the requirement would be to not nat anything if coming from inside vlan10 but nat if coming from inside vlan20.I didn't think this was possible since the outside interface would have to use an outside nat command that would not be ignored for traffic coming from vlan10.

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Cisco Wireless :: ASA 5510 NATing 2 Internal IPs To 1 Public IP

Apr 27, 2013

I have a doubt on how do nat 2 internal ip addresses to 1 public ip for FTP uses.
 
As I know Cisco ASA cannot use to nat 2 internal ips to 1 public ip as the ASA cannot read the host header. It there anyway to control it by using acl or network object group?
 
My current configuration for nat 1 internal ip to 1 public ip:
 
static (firewall-dmz,firewall-outside) tcp 210.19.xx.xx 21 172.16.101.11 21 netmask 255.255.255.255  dns

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Cisco Firewall :: ASA 5510 - How PAT With One Public IP To Two Internal Servers

Sep 18, 2012

I've tried a bunch things but it didn't work, I'm about to gave up! :-/
 
I have the following scenario:
 
ASA5510 - v8.3(2)
 
Interfaces
ETH0/0 = outside  = 189.xxx.xxx.129
ETH0/1 = inside = 10.xx.1.15

[Code]....

What should I do to get the SIP and 8080 port working on my Public IP, likewise just as access from my browse the http://189.xxx.xxx.129:8080 and get through directly to my internal server 10.xx.xx.61 ?

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Cisco Routers :: RV 120W Can't Access Internal Servers By External Addresses

Oct 13, 2010

I recently cut over from a WRT54G to a RV120W.  I am having an issue where I type [URL] (for a server running on my network) in my web browser while on the internal network and it always comes back with the router login page.  Basically it is supposed to go out of the router and then come back in on the public IP address and hit that server.  There was a function on the WRT54G called "Filter Internet NAT redirection" which when turned off would allow this to happen.  I am not seeing a feature like this on the RV120W
 
[URL]

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Jun 21, 2012

ASA 5505 Firmware 8.3(4), ADSM 6.4(2).I have a public IP address of 168.87.3.4.I need to forward ports (5060, 5080, etc.) to one internal address. (192168.1.1).I need to foward different ports (10020-10080) to a different internal address (192.168.1.2) Everything I read tells me how to do this in a 1 to 1 static NAT.

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Mar 26, 2012

setup my Foscam IP cam lastnight on the Wireless network using UnPn and was able to access it fine via the public IP , using another PC on the same network with no issues. However when I tried to access it from work it doesnt connect - Is there a firewall setting that im overlooking?

FYI im using a Netgear CVG824G

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Cisco Switching/Routing :: 5505 Can't Connect To Public NAT Address From Internal Network

Dec 19, 2011

I have an ASA 5505 configured with internal network, a DMZ, and a VPN on seperate subnets.  The implicit rules allow my internal client computers to connect to the web servers on the DMZ IP, but I can not connect to the public NAT address from the internal network.  I have a DNS server on my internal network and it does resolve to the public IP correctly.  NAT seems to be working correctly because if I go outside the network and connect to the public IP or qualified name then I can get to everything correctly.  I do not see any messages in the Cisco logs and the packet trace tool shows the route of http from an internal IP adddress  to the external (NATed) address is allowed.
 
Specifically, I can go to http://192.168.1.121 from the internal (192.168.0/24) network, but I can not go to http://72.22.214.121 (the NAT address) from the internal network.  If I am outside my cisco then I can go to http://72.22.214.121 easily. [code]

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Cisco Firewall :: ASA 5505 / Site To Site VPN Using Public Addresses On Local Network

Jul 28, 2011

I have a request to establish a site to site VPN with a customer. While collecting the information I give them our local network subnet which is a private subnet (192.168.5.0). They asked me if I could give them a public address instead. They can not work with the 192.168.5 subnet. Is this possible?
 
My side of the VPN is an ASA 5505 running 8.2(2). The other side i believe is a Checkpoint.

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Jun 11, 2013

We recently purchased an SRP527W router because of its capability to configure site-site VPN tunnels. The configuration of IKE and IPSEC is working and the tunnel comes up but the problem is that the router is passing our internal IP addresses through the tunnel. The remote end we are connecting to requires us to hide all traffic behind one IP address which would ideally be our external static IP address from our ISP.

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Apr 7, 2013

DHCP scope is configured on a WLC 5508.I'm checking if there' a way for WLC to clear the dhcp leasing when a user is diconnected from wireless?

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Cisco Routers :: RV042G Port Forwarding From Public Port To Internal IP?

Oct 11, 2012

Is it possible to create a service which will forward public port 9010 to an internal IP address with port 23 ?
 
First of all, I do not like to open the public Telnet port to the inside so I would use another public port and second my ISP does not allow some public ports beneath port 80

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Linksys Wired Router :: RV042G / Create Service To Forward Public Port 9010 To Internal IP Address With Port 23?

Oct 12, 2012

Is it possible to create a service which will forward public port 9010 to an internal IP address with port 23?First of all, I do not like to open the public Telnet port to the inside so I would use another public port and second my ISP does not allow some public ports beneath port 80?

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Cisco Routers :: RV042 When Updating / Adding Mac Addresses / Table Is Always Sorted By IP Addresses

Oct 8, 2012

In  setup for old RV042 (V1),  when updating / adding Mac addresses, the table  is always sorted by IP addresses. But in the new oneRV042 (V3) I have, even with latest firmware 4.2.1.02  the list  is random, thereby increasing the chance of user entering DUPLICATE IP addr  with diff Mac addr.  That will result in conflict.If the firmware sorts the DHCP entries by ip addresses, user would be  able to catch duplicate ip errors even if the system does not flag the  errors.  All Cisco smart engineers can you all get the dhcp entries SORT by  ip addresses.

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Cisco VPN :: ASA Version 8.2(5) - Public-to-Public L2L / No Return Traffic?

Apr 2, 2013

One of our vendors requires using a public ip address to setup a site-to-site IPSEC vpn. We only have one public ip address and that will be used for the vpn endpoint and for internet access for the local network. I've setup policy NAT from our local network to the outside interface. I'm also using the outside ip address for the crypto map. The tunnel setups successfully and the Tx count increases anytime I try to ping the remote network, but the ping fails and the Rx count does not increase. According to our vendor, we should be able to ping the remote network and connect using port 443. When trying to connect using port 443, I see a SYN timeout in the logs. I'm not sure if the problem is on their end and they're rejecting our traffic, or if something is misconfigured on our end. I'd like to make sure that I have everything configured correctly before I go and point fingers at them.

Local Network - 10.10.9.0/24
Remote Network - 20.20.41.0/24
Remote Peer - 20.20.60.193
.ASA Version 8.2(5)
!
hostname ciscoasa

[code]....

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