Cisco WAN :: 5510 - Configure All Public Ip Add On Router And ASA?
Aug 16, 2011
how to configure public ip on router 1841 and ASA 5510. let me show you my issue that: i have router 1841 ( for F0/0 use pubic ip add 10.10.10.1 /30, and F0/1 use other rang public ip add 20.20.20.1 /24) and on ASA 5510 i use public ip add E0/0 20.20.20.2 /24 ) all this for public ip add and my lan ip is 192.168.0.1/24.
could you let me know how to configure on router 1841 and ASA 5510. for router 1841 if you use private ip we can use nat but for all public ip add how can we do it?
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Apr 13, 2013
I have a few devices that the manufacturer told us we have to set with a public IP (No Natting) We have Internet ->ASA5510-> Switch 3550 with 3 vlans. Up to now we have always use Natting to configure internet access to specific devices. I heard setting up a witch with one VLAN connected to the internet and all other internals is a bad idea. that was the only Idea we had.
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Jun 4, 2013
Our ASA 5510 was configured with a public interface, a DMZ interface, and a private interface. I have a remote access VPN using AnyConnect client and LDAP authentication for Active Directory. We are changing ISP (groan!), which means all new public IP addresses. The new circuit is installed, so I have a second public interface (same security level as the first public interface, wholly different IP address range) enabled on the ASA. I hope to transition whatever I can, which means get the VPN access through either public interface. Can I just enable client access on the second public interface at the Anyconnect Connection Profiles tab in ASDM? That seems too simple. Can they share the one address pool?
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Oct 16, 2012
I have a problem with my web application. I cannot access it from my internal network using my static public IP (i.e 49.123.456.7). However I can access it from an external network using my static public IP. Is there a way for me to allow access internally as well as externally?
I am using Cisco 800 series router. Here is my configuration:
Header 1
Current configuration : 2549 bytes
!
! Last configuration change at 09:35:38 SGT Thu Oct 18 2012 by xxxxx
[Code]....
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Oct 8, 2012
i received a public ip from my ISP and need to configure to enable access my server remotely
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Feb 5, 2012
We need to deploy a Cisco ASA 5510 behind the Internet facing router for Remote Access VPN (RAVPN). We bought the block of 16 IPs (in a different subnet) which is routed through the main router (69.x.x.x)and configured the outside interface of ASA with a public IP 64.x.x.x and subnet mask 255.255.255.240. Below is the network structure.
But, we can't access the ASA by it's public IP.
DSL Modem → RV082 router → Switch → LAN
(69.x.x.x) ↑ (192.168.0.0)
Cisco ASA 5510
(outside: 64.x.x.x, inside: 192.168.0.172)
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Nov 21, 2012
How to Configure VPN SERVER with Public IP. Is there any free and secure tool so that we can create multiple vpn client and access the vpn network, Requirement Only one public Ip.
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May 25, 2012
I have a set of public ip(/29) using adsl2+, is it possible to config cisco 857 as a public gateway so i can assign public ips to my computers?? before i upgrade to adsl2+ i was using cisco 678, it can be config as a public gateway without problem, but now i have ot use adsl2+, can't use cisco 678 anymore..
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Apr 7, 2013
My ASA 5510 is configured with a single PUBLICIP1 on the outside interface. All internal hosts 192.168.0.x are behind the ASA firewall and NATed to PUBLICIP1 including a few site-to-site VPN tunnels. This is also true for DMZ. Now, I would like to add a second PUBLICIP2 to the ASA and map it to one internal host ONLY - For eg: 192.168.0.25. How can I do this without effecting the existing setup? Since my entire internal subnet 192.168.0.0/24 is NATed to an existing PUBLICIP1 how can I exclude just one host (192.168.0.25) and bond it to the PUBLICIP2 for all ports.
This is what my current OUTSIDE interface looks like.
interface Ethernet0/0
duplex full
nameif OUTSIDE
security-level 0
ip address PUBLICIP1 255.255.255.224
!
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Mar 16, 2011
we have hosted voip and would like have our internet as back for their router. We gave them public static ip so they can configure that in their router. How can i configure the ip address in our firewall let say on asa5510 ethernet port 3 so if their router T1 goes out then our internet will work as backup.
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Jul 22, 2012
I am now using ASA 5510 as a firewall device.I have configured 3 interfaces ethernet 0/0,ethernet 0/1,ethernet 0/2 as Wan interface, DMZ interface and Internal Lan interface. Internet is working fine from LAN as well as DMZ.The WAN interface use the Public Point 2 point IP(/30) Provided by the ISP and another pool of Public Ip is also provided by the ISP (/28). Now I want to Map the /28 IP to some servers in DMZ . DMZ servers currently have 192.168.101.0/27 private IP . Now the problem is how to Map the Public IP to those Private IP in DMZ servers.
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Jul 30, 2012
I am setting up a site to site IPsec connection with a company, something which I have done many times before without trouble. I use ASDM to configure this as it is quick and painless, usually.
We have a number of other site to site connections currently configured and working fine on this ASA, these are configured with the 'Protected network - Local network' configured with the private IP's of the hosts within our network we want to make available through the seperate tunnels. This includes the configuration setting on our ASA for each connection to 'Exempt ASA side hosts from NAT'.
With this new connection however, the company has asked us to use a public IP for the host we want them to reach through the tunnel. I am not sure why but they demand it. So I added a NAT rule for the inside host, and configured the connection with the public IP under 'Local Network'. When testing to try reach a host on their side, the tunnel does not even attempt to initiate.
I cant see where I am going wrong. I am guessing the 'Exempt ASA side host from NAT' does not require to be set for this, as how else would the ASA know which internal host the public IP relates to.
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Nov 20, 2011
I have a peculiar situation where I need to assign a public ip to a computer without going through firewall (for testing purpose).
I have the leased line going through a 3750 switch to the ASA 5510(15.240.1.2/30) belonging to vlan 999. ASA has default route going to 15.240.1.1/30(ISP).
I have different public ip range for LAN and WAN My WAN ip is 15.240.1.0/30, LAN ip range is 15.240.2.24/27 nated by ASA..
I want to connect the PC to the switch port belonging vlan 999 and ip address of 15.240.2.26/27.
If yes, what will be the gateway for the computer?
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Aug 31, 2011
i just got an extra public subnet from our ISP (co hosting center) But I can't figure out how to use them on my ASA.
New:
IP-adresses: 87.1.1.194 - 87.1.1.254
Default gateway: 87.1.1.193
Subnetmask: 255.255.255.192
Old:
IP-adresses: 200.1.1.34 - 200.1.1.46
Default gateway: 200.1.1.33
Subnetmask: 255.255.255.240
Config:
route wan 0.0.0.0 0.0.0.0 200.1.1.33 1
And statics like:
static (interface,wan) tcp 200.1.1.37 3389 192.168.3.100 3389 netmask 255.255.255.255
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Sep 5, 2012
We have the setup as shown above, our requirement is to access mail server via ports smtp and pop3.But as the mailserver is hosted at internet users at site were not able to aceess. we need to nat a intranet ip with mail server ip and mail server ip back to intranet ip and provide the access.We use ASA 5510 firewall.
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Mar 3, 2013
I have DMZ n/w 192.166.0.0/24 on which i have nated on public ip
-private ip : 192.16.0.201 (OWA)
-public ip : 61.x.x.x.
when i try to access owa(public ip ) from dmz it is not allowing , From what rules i need to set to get work ASA 5510 8.2
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Oct 17, 2011
We have an issue with some NAT on an ASA 5510. Here is a simplified drawing of the ASA setup:So the issue is when we try to send traffic from 172.16.3.251 to 1.1.1.1 we got this message in the log:
Oct 18 2011 12:32:12: %ASA-3-305006: portmap translation creation failed for udp src inside
172.16.3.251 /37166 dst outside:1.1.1.1/23
It looks like there is an issue with NAT but maybe is cause of the DUAL ISP setup as packets are routed through the outside interface and not IPtelefoni_outisde?
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May 7, 2012
I have a new 5510 which I have upgraded to 8.4(3). I have a /29 subnet from the telco on my outside interface. I have 6 subinterfaces on a dot1Q trunk on my inside interface. The customer requirement is to have two servers in a DMZ which have public IP's from the /29 subnet. The customer will not give the servers a new IP address so we are stuck with the two public IPs in the DMZ. I thought I would need a bridge group and bridge the outside, two DMZ interfaces but I read that bridging requires the firewall to be in transparent mode and then it won't support VPNs - this is not an option as I need to terminate VPNs on the box too.
how can I accommodate the two servers in the DMZ with public IPs whilst the ASA is in routed mode ?
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Feb 19, 2013
Im having problems with google saying we generate to much traffic to [URL]
I need to know which machines on the inside are talking so much with google. Can this be done via ASA 5510? do i need a third party program for this?
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May 14, 2013
How can I hold the public IP on my cisco client VPN NAT session so nobody else can use it? I have a cisco asas 5510 inside is 172.10.20.86 public 166.245.192.90
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Feb 5, 2012
I have a situation where we have a single DMZ server currently statically forwarded to a single public IP. TCP ports 80, 443, 8080, 8500, 53, and 21 are open to this server via an access list.
However, we have added an additional server to the DMZ, and because our web developers did not communicate with me beforehand, we are forced to use the same DNS name (thus, the same piblic IP) for this server. This server only needs traffic on TCP/8800 forwarded to it.
I am using ASDM 6.4 for configuration of this, as I am required to take multiple screen shots of the procedure for our change control policy.
My question lies in the reconfiguration of NAT/ PAT. Since our current server has a single static NAT to a single public IP, it is simply natted for "any" port. I understand that I can add the new server as an object, and only PAT it on TCP 8800, but will I then have to go back and reconfigure the first server multiple times for PAT, or will the ASA notice the specific PAT, and forward 8800 to the new server without affecting the existing "old" server?
It appears ASDM will not allow me to put multiple ports into a single network object. I am assuming I will need to add 6 separate object translations for the "old" server based on TCP port, and 1 object translation for the "new" server, correct?
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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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Jan 30, 2012
How can I hold the public IP on my cisco client VPN NAT session so nobody else can use it? I have a cisco asas 5510 inside is 172.10.20.86 public 166.245.192.90
Did I need to call my ISP?
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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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Dec 29, 2012
I have one Cisco ASA 5510 with 2611 router two 2960 switch how to configure.
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Dec 9, 2012
Does the AP is able to configure 2 public ip address of the DMZ-WLCs?
like ip 1.1.1.1 in my US data center, whereas a second ip 2.2.2.2 in my EU data center?
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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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Mar 12, 2012
I have a Cisco ASA 5510 that was set up as a VPN server for working remote. I have disabled split tunneling so that all traffic created while VPN'd in goes through the ASA. The problem I'm having I believe would be resolved if I enabled split tunneling but I would prefer another solution. Now..for the problem.When a user is connected via VPN, they can hit all intended devices both public and private accept servers that have static NATs in the FW. So Server A has a public of 1.1.1.1 which is one to one mapped to private address of 10.1.1.1. Now if the remote user brings up a browser and goes to 1.1.1.1 it wont work. The FW gives me a error which is posted below. However, using the private IP of the server works. I thought about trying to manipulate DNS to resolve this as the remote users are using URLs and not IPs when trying to reach these servers but again, was hoping I could resolve the NAT problem that the FW seems to be having.
Asymmetric NAT rules matched for forward and reverse flows; Connection for tcp src Outside:192.168.202.100/49238 dst INSIDE:1.1.1.1/80 denied due to NAT reverse path failure 192.168.202.x/24 is the remote vpn ip given via the ASA.
Here are some configurations on the ASA:
static (INSIDE,Outside) 1.1.1.1 10.1.1.1 netmask 255.255.255.255
access-list INSIDE_nat0_outbound extended permit ip object-group DM_INLINE_NETWORK_2 192.168.202.0 255.255.255.0
object-group network DM_INLINE_NETWORK_2
[code].....
Outside with 4.4.4.4 as the public ip traffic gets NAT'd do dynamically Inside with 10.1.1.x network on it.The ASA is running 8.2
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Jul 11, 2012
i'm running a 5510 asa and the vpn has been working great for a while. We recently change our network provider so i had to change the public ip, and dns on the firewall... now i can still connect via the vpn and browse accross my mpls to other sites, but cant really access anything on the native lan that the firewall resides on?
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May 10, 2012
getting my additional IP addresses working on my ASA 5510. I have a /29 allocation and outbound access and inbound access to my internal www server is working fine through the default outside interface. However, I now need to setup a second IP address that maps internally to a different web server. When I setup a new network object with automatic NAT translation to the new IP address, it does not work. If I setup the same scenario using the outside interface, it works fine. What is the proper way to setup additional IP address on my ASA v8.4?
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Sep 11, 2012
I hava ASA5510. INSIDE,DMZ and OUTSIDE interfaces are configured. I hava web server on DMZ ip:10.0.0.1 and it is static natted to 1.1.1.1. From internet i can reach to web server with IP:1.1.1.1 and from INSIDE connect to web server with IP:10.0.0.1. Now i want to connect from INSIDE to WEB server via public IP(1.1.1.1).how can configure it?
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Mar 15, 2011
Will I break anything if I create a second IP address on the physical external interface of our ASA 5510? I want to point it nowhere internally but want an active interface that can be vulnerability scanned but won't lead anywhere internally.
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Dec 27, 2011
I have one public IP address but multiple local servers that run on the same port. I cannot change the port the clients use to connect to this server, so I can't do a port map in my NAT router. The solution I had in mind, is to filter on source address. If a client from public IP X.X.X.X connects to port Z, I want it to go to internal server 10.10.10.10 and if a client from public IP Y.Y.Y.Y connects to port Z, I want it to go to internal server 10.20.20.20. Is this possible? I'm using an ASA5510 but I could also switch to a 5505 for this.
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