Cisco VPN :: ASA 5520 - VPN Clients And DNS Resolution Internal Or External Does Not Work

Jun 27, 2011

I have set up a remote access ipsec vpn on an asa 5520.  I can connect,  and ping internal ip addresses, however I cannot ping back out to the  internet, nor can the internal network ping the vpn clients and dns resolution internal or external does not work.  I am seeing nothing blocked in the logs on the asa.

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Cisco VPN :: 5520 / 5510 - Can VPN Clients Communicate With Other Dynamic Clients

Nov 5, 2012

We currently have an ASA 5520 communicating with 10 ASA 5510's, all on static outside addresses.  I was asked to add 5 additional 5510's on dynamic address.  All worked well in testing until it was decided that some of the dynamic clients needed to talk to each other.

My testing shows packets just dying in the 5520.

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Cisco Firewall :: NAT Two Internal IPs To One External IP In ASA 8.4?

May 6, 2013

I found a link to accomplish this on the old code but how can I get this done on 8.4. 

[URL]

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Cisco WAN :: 2600 - External To Internal IP NAT?

Jun 10, 2013

I have a 2600 I am trying to setup for educational use. 
 
My Cable ISP has issued me 5 routable IP's through their SMC modem 86.28.12.226-229.  The SMC modem is .225.  Currently the internal network can get out through .229 as expected but nothing outside (tcp 80 to web server) can get through.  When I assigned the ip's to e0/1 as secondarr I could get it to route from the inside network (so hitting .226 80 went to the correct place) but it still didn't work from the outside - plus I read that wasn't a great way to do it anyway.

!
interface FastEthernet0/0
description LAN Interface

[Code].....

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External IP To Internal Device?

Sep 22, 2012

I have a checkpoint Safe@Office 500 firewall router, connected to adsl via another adsl device in bridged mode.We needed to assign an external IP to a device behind the firewall.We contacted the ISP, and now they have assigned an additional IP to our adsl account.I have read from the documentation that:"NAT can be defined automatically via the network object (Node, Network or Address Range). When you define NAT via the network object, rules are automatically added to the Address Translation Rule Base"....so I add the object, with the external IP given to us by our ISP, and the wizard simply complains that the IP address is invalid.My thoughts are that the router does not know about the additional IP provided by our ISP. If so, how do I tell the router that there are other IP addresses available to use? I have rebooted the router, and no luck.

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Connect Using Rdp From External To Internal Ip?

Jun 20, 2011

i can can ping my host externally from another ip however i have left my house without port forwarding to my pc is there a way to connect to my pc via something like this command "xxxx.dyndns-home.com:192.168.1.100" i have tried this and does not work as it does not like the ":"truth be told my real goal is to ultimately be able to look at my webcam as it is pointed at a homebrewing project which i need to see. this is what i want to work on setting up while in rdp?

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Cisco :: ASA5505 Change SIP Internal Address To External One

Sep 15, 2011

The problem is that the PABX is sending out an internal address in it's INVITE messages and the ASA5505 isn't changing the internal address to the external address.We need> From: Calling Number <SIP: SIP Username@Public IP Address>However our PABX sends out> From: Calling Number <SIP: SIP Username@Private IP Address>. How to translate the internal IP address to the external IP address on an ASA 5505?

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Cisco Wireless :: 2504 - Using Both External And Internal DHCP On WLC

Nov 25, 2012

I am wondering if the folowing is a valid configuration:

WLC2504
AP2600
 
I need 3 SSID/VLAN, 1 for corporate devices, 1 for coporate smartphones, 1 for guest.

Port 1 on the 2504 should be used for management and corporate devices and connect to the corp network. Port 2 is for smartphones/guest and will be connected to a Cisco ASA 5515 that is connected to a second ISP.
 
Corp devices should get IP from an Windows DHCP. Smartphones/guest should get IP from the WLC. Is this possilbe? I read this in a document "To use the WLC as a dhcp, you need to enable DHCP proxy as it is required." Some how I am imagining that this will mess with the Windows DHCP. Is it better to use the ASA as DHCP for smartphones/guest?

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Cisco WAN :: ASA 5505 - Assign External IP To Internal Server?

Mar 2, 2012

I have 3 external ips from my isp:

222.222.222.221
222.222.222.222
222.222.222.223

The first one I use to provide internet access to my office. The other two I'm going to use for the following: I'm going to deploy a server in internal network which must have 2 external ips on his network interface (& one internal ip on the second,but that's ok: I cannot put an extra network switch before asa & plug this server there: this server is virtual & is on esxi host in internal network. External ips must be assigned to servers' interfacw,bot just forwarded there (ms direct access requirement).

My current config:
 
!
ASA Version 8.4(3)
!
hostname msk-office

[Code]....

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Slow To Access Internal Sites Via External IP

Jul 17, 2012

Our secondary site accesses the internal intranet via a link, which is basically:

[URL] where externalip is the IP address of my router.

* This used to work fine before we migrated from ADSL (6mb up / 0.5mb down) to Fibre(70mb / 20mb) *

Internally, I access the same link, but via [URL] Internally it loads in 2 seconds, externally it is taking 68seconds(ish)..

I can't work it out, the fibre shouldave made things loads quicker but is infact very slow. I'm wondering if something network wise is going on.

The intranet is a php intranet sitting on apache, and using postgresql as the database. Other pages load fine, this specific index.php page does quite a lot of DB connections and so on, but as I say before, it worked fine before the migration.

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IPConfig Is Not Recognized As Internal / External Command?

Jun 29, 2011

I can hear nothing sound driver disabled... windows explorer wont open...and my notepad and calculator wont work either... how do i remove it..

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Cisco WAN :: WRVS4400N - External Web Server Can't Connect To Internal SQL Database

Jul 4, 2011

I have a hosted web server that has a website on it that needs to connect back to a database within our internal network. We have a Cisco WRVS4400N Wireless Router with 2 VLANS. VLAN 1 goes to a Watchguard Firebox which is connected to our internal network. VLAN 2 goues to our classroom network.
 
Our database is on VLAN 1. I have opened port 1433 on the Watchguard to allow SQL traffic from our Web Server. I can telnet from my workstation on VLAN 1 to the Web Server over port 1433, so I know the Web Server is not blocking anything. When I try to telnet from the Web Server to our Public IP address over port 1433, it fails.
 
I believe I have the firewall on the Cisco WRVS4400N off, so it shouldn't be blocking any traffic, but for the life of me I can't get this to work. I have been working on this for two days, and I NEED it to work. This was working up until last week, then it quit working. I am the only person making changes to our network, and there were no changes made during that time.

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Cisco Firewall :: Accessing Internal Sites Via External IP 5505

Jun 4, 2012

I have a Cisco 5505, 2 sites that are internal, 1 external IP (dhcp from cable modem).   While on my laptop, ipad, iphone, I cannot access the server via it's external IP address.  I MUST use the internal IP in order to access this site. I have heard of hairpinning, internal dns server(don't really want this).

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Cisco Firewall :: 8023 / External Access To Internal Router Via ASA

Dec 31, 2012

I am aware that we can allow external admins to telnet over a custom port to the internal router. Even i was allowed to connect to a remote router via the remote firewall. The way i was accessing the router is by telnet to the remote ASA address on port 8023.I am not sure how exactly we can configure this on a ASA.

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Cisco Firewall :: ASA 5505 Internal Address To Forward From External One

May 30, 2013

I have an old ASA 5505, and I'm having some trouble with Nat Hairpinning. I've done this with other firewalls before and I am having no luck now. I have an internal address that I wish to forward from an external address- so if someone goes to 123.456.789.012:3456 then it will forward to 192.168.1.244:92 (All numbers are arbitrary here- only for illustration). I have and Access Rule and NAT and PAT set up so that I can get in if I originate from outside the LAN. What I am trying to do is to have this work from inside the LAN as well- so that if I am at my desk, and I connect a device and type in 123.456.789.012:3456, it will deliver the content at 192.168.1.244:92. The problem I am having is that it just isn't working, and I cannot figure out why- When I started here, there was an address configured to work this way, and it still works- I just cannot find what is different between what I am doing and what the person who configured it did.

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Cisco Switching/Routing :: ASA5505 / Route External IP To Internal IP

Mar 20, 2013

I have an internal DVR system that I am trying to share to the outside world.  We recently put in an ASA5505 and I am having trouble getting the settings correct.I want to use an external IP to access the DVR system from anywhere and have my ASA5505 redirect the traffic to the internal IP address.  I assume I need to use a NAT and a route policy however can not figure out how it would be. 

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Cisco Firewall :: ASA 5510 - Connecting To External IP Of Internal Server

Sep 25, 2012

I was just wondering if it's possible with an ASA 5510 to connect to the external IP address of an internal server from inside the network.  I have already set up dns doctoring for dns lookups, and everything is working fine there.  We have an application inside the network that tries to connect straight to the external Ip of another internal server.  where to look in the ASDM 6.4?

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Cisco Wireless :: 5508 Office Extend Internal External?

Dec 18, 2011

I am having an issue with internal and external clients. When we have the nat ip configured on the controller we cannot connect internal ap's at all. When we take the nat ip out it works fine. We are on code 7.0.220. I have tried the following command  <config network ap-discovery nat-ip-only disable> and it did nothing.

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Cisco Firewall :: ASA 5505 8.2 - Clients Can't Ping External IP

Nov 4, 2011

I've configured a 5505 but internal clients can't ping external ip. To test I've connect a pc with the ip of the default router on the Outside int the ASA can ping the PC and the PC can ping the ASA, but internal clients can't ping the PC
 
PC config 195.12.23.241/28
 
Here's the ASA config, so far I've wiped the ASA and started with a blank sonfig and built it up but still not working.
 
 
ASA Version 8.2(5)
!
 
!
interface Ethernet0/0
switchport access vlan 2
!
interface Ethernet0/1
!
interface Ethernet0/2
!
interface Ethernet0/3
!
interface Ethernet0/4
[Code] .....

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Cisco WAN :: External Packet Loss From LAN Clients Through 857w

Jun 15, 2011

Internet usage is very slow when initially opening a site from LAN clients. Once  established it is OK.  If I ping a site from an LAN client by either host name or IP  address it takes about 5 seconds, drops the first packet then is fine  after that.  if I ping it again immediately  afterwards it is fine.  But if i wait 2 minutes and try again the problem returns.  So I would conclude that seeing it is the same  whether I use Host name or IP address it is not a DNS issue. Pinging from the router produces no fault at all.  [code] I can ping the router internal and external interface or any internal  ip or hostname from the LAN with no delay or hesitation so it is not  a switch interface or network card problem.Some sort of NAT issue maybe? [Code]

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Linksys Wired Router :: RV042 / One-To-One NAT From Internal To External IP?

Mar 10, 2012

I am converting from a Cisco Model 850 to a RV042, all is well so far but I cannot implement one feature I had on the old router.I want to do one to one nat from one internal ip to one external ip but I only want to use one tcp/ip port.The command to do this on the old cisco 850 was this:"ip nat inside source static tcp 192.168.1.181 80 75.xxx.xxx.181 80 extendable"Can this be done with the RV042?I can do one to one nat but it include all ports.

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Linksys E3000 - Internal / External LAN Firewall Setup?

Oct 20, 2012

I have Astaro UTM running on an old computer as my only firewall right now. The Astaro also serves as my DHCP server. My Wifi is provided by a Linksys E3000 running DD-WRT software. NAT/SPI are disabled on the E3000, and it forwards DHCP requests to the Astaro. All my network clients connect via wifi/ethernet to the E3000.

All clients --> E3000 (no firewall) --> Astaro --> www

I am considering setting up my own personal cloud server using a Synology NAS that I can access remotely. I would also like to remotely access my Surveillance DVR. I would like to access them via VPN or portforwarding. I do not want to use DMZ.

I would like to utilize the SPI firewall on the E3000 to provide an extra layer of defense. I would like the NAS and the DVR to be on an external LAN between the Astaro and the E3000...and all other clients being on an internal LAN behind the E3000. I have the necessary switches/cables to make this work.

My question is...How do I configure the E3000? Can I have both the internal and external LANs on the same subnet? Do I have to use the NAT on the E3000? I'd rather not...since that will render the Astaro's reporting functions rather worthless.

I would like the Astaro to remain the only DHCP server. I would like all internal LAN clients to be able to reach out to the external LAN/WAN...but the external LAN should not be able to reach into the Internal.

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Cisco VPN :: Anyconnect Clients Not Following Internal Static Routes On ASA5505

Feb 9, 2012

I have just purchased an ASA 5505 for my remote users to access our internal network.  I have followed all the setup instructions I can find.  I am able to establish a VPN connection using the Anyconnect client and can see some of my internal network. (Basically, only the subnet of the internal interface)  However, I have several subnets inside my LAN which are routed by another switch inside my LAN.  I have built in the correct static routes so that the ASA will send traffic to that intenal routing switch for any subnets not part of it's inside interface subnet.  I can see and ping those subnets from the ASA itself but the AnyConnect clients cannot.

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Cisco WAN :: 2800 Setup Router To Resolve Both Internal / External DNS Requests

Jun 3, 2012

I have a 2800 with one Gigabit interface connection to our Lan and the other interface connected to the internet with a public IP address. Now I'd like to setup the router to resolve both internal and external DNS requests. Thus requests like www.google.co.za and LocalLanPcName should be resolved to their public and private IP's respectively. [code] When I ping any name the only DNS server that is ever queried is 192.168.1.200 (it does resolve internal name correctly though).

None of the other servers are attempted to resolve the name. It does not matter if I specify a FQDN or not.
 
How do I setup the router so that my internal resolution is handled by 192.168.1.200 and .201, while external resolution is handled by 41.160.36 and .37. Or alternatively, how do I configure it to at least try all 4 specified name-servers for resolution, and not fail after trying the first one unsuccessfully.

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Cisco Switching/Routing :: 6509-E Compact Flash Internal Vs External

Oct 27, 2011

6509-E compact flash Internal vs External

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Cisco Routers :: RVS4000 / How To Make External IP Point To Internal Address

Nov 29, 2011

Basically I have a group of static public IPs and I need one of them to point to an internal server IP address. This is for the RVS4000 router.

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Cisco Switching / Routing :: RVS4000 - Internal Users Not Accessing An External Web

Nov 13, 2012

we recently upgraded from an RVS4000 router which didn't have this issue.

the problem; Internal users from Site A cannot access the external owa address.From Site A i can successfully ping both the external/internal IP addresses/names and they resolve correctly, including pinging the address ('mail.company.com") resolves correctly to the external ip address.

[code]...

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Cisco Firewall :: ASA 5505 / Allow External Traffic To Access Internal Computers

Mar 22, 2012

We have an ASA 5505 running version 8.4. We are having problems allowing external traffic to access computers behind the firewall. Our current config is:
 
ASA Version 8.4(3)!hostname ciscoasadomain-name default.domain.invalidnames!interface Ethernet0/0switchport 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 Vlan1nameif insidesecurity-level 100ip address 10.2.1.1 255.255.255.0!interface Vlan2nameif outsidesecurity-level 0ip address 152.18.75.132 255.255.255.240!boot system disk0:/asa843-k8.binftp mode passivedns server-group DefaultDNSdomain-name default.domain.invalidobject network a-152.18.75.133host 152.18.75.133object network a-10.2.1.2host 10.2.1.2object-group network ext-serversnetwork-object host 142.21.53.249network-object host 142.21.53.251network-object host 142.21.53.195object-group network ecomm_serversnetwork-object

[code]....

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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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Cisco Wireless :: 1142N / Internal Versus External Antenna Coverage

Mar 19, 2013

I have a few 1142N Aironets with internal antennas in place, and I am not thrilled by its coverage. I want to extend my wireless network because of a new building which led me to the following question;Is there is any difference in wireless coverage when using external dipole antenna’s (the small ones, for example the AIR-ANT2524 for a new 2600 Aironet) versus the internal (dipole) antenna’s. I am aware you have more options when using external antenna’s, such as omni, directional, outdoor etc.
 
For an indoor office or warehouse deployment, where temperature is not a concern, why would I buy for example the 2600E with 4 dipole antenna’s over  the 2600i?I have read most Aironet datasheets and their antenna options, but can’t find a word about the advantages of external dipole antennas. I would expect external antennas would give better coverage.. is this true?

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Cisco Wireless :: 4402 / Clients Not Getting DHCP From External Server?

Jan 16, 2013

I have a 4402 (version 7.0.235) working with 10 units of 1121 APs connected to it. The WLC is not configured to work in LAG mode. Physical portt #1 is connected to the Main Switch (trunk). I have 3 WLAN mapped to 3 Different VLAN and Everything (security and internal, external DHCP) is working swell...Now- I have connected Physical port #2 directly to an ADSL Router (giga port), Configured Port 2 as untaggedwith the proper IP details.I have configured this interface to receive DHCP from the ADSL Router and for some reason, Clients are not getting addresses.When I assign a Static address to my laptop I get internet access and all is nice. I tried configuring The WLC internal DHCP server (instead of the ADSL router) and that didn't work. It seems like a DHCP problem but I dont understand the source of the problem of think of the solution.When turning off the proxy settings I noticed that it worked. Is there anything to do with that? The problem was that after a while the other WLANs starting causing DHCP issues as well.

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Cisco VPN :: ASA 5505 - AnyConnect Clients Can't Access External Sites?

Jun 9, 2010

I'm looking to setup AnyConnect VPN with no split tunneling. ASA 5505 v8.2. It seems this should be really easy. I must be missing something.
 
I can get the AnyConnect users to connect fine and they can access sites internal and at other IPSec-tunneled sites. But no access to the internet.
 
Internal is 10.1.1.x, VPN pool is 10.1.1.251-253 (Temp list for testing). I issued the following tracer: packet-tracer input outside tcp 10.1.1.253 12345 69.147.125.65 80 detailed
 
The last reported point (where it fails) is:
  
Phase: 7
Type: WEBVPN-SVC
Subtype: in

[Code].....

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Security / Firewalls :: Routing External To Internal IP On Fortigate 300C?

Jul 5, 2012

We have a FortiGate 300C firewall and I was trying to allocate an external IP to an internal IP and I was having a lot of trouble figuring out exactly how to do that.

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