Cisco Firewall :: NASA5510 Working Traffic Inside Of Same Interface

Oct 13, 2012

I need to configure a Cisco ASA5510.Connencted the a single interface I have a switch. To this switch (same VLAN) there are connected:
 
1. The Subnet of the main office (192.168.1.253)

2. A router  (IP 192.168.1.254) that routes the traffic to a remote location (Subnet 192.168.8.0/24)
 
I have so allowed any traffic incoming to the inside interface as follows:access-list inside_access_in extended permit ip any any and I have permitted traffic intra interface as follows: same-security-traffic permit intra-interface. [code]Unfortunately I cannot RDP into that server. When I simulate the connection via Packet tracer, it tells me that the implicit deny on the bottom of the connections from "inside" (firewall) does not allow the connection. It sounds to me like that "same-security-traffic permit intra-interface" does work only if there are 2 interfaces and not a single one.Unfortunately I cannot just unplug the cable and connect it into another port as the ip is on the same subnet and I cannot configure the other end router.

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Cisco Firewall :: PIX 501 / Can Traffic Goes From Inside Interface To Outside Interface

Oct 9, 2011

I have Pix 501 firewall and I'm just configuring the device for "Email Server" to allowing POP/SMTP.
 
Inside Interface Address: 132.147.162.14/255.255.0.0
Outside Interface Address: ISP provided IP address
 
My question is can my traffic goes from inside interface to outside interface? (because the inside interface address not from 10.0/172./192.168 private address)Also I'm allowing internet from this email server (132.147.162.14) so what my access list to be configured? and what my subnet mask shoud be there?
 
Pix(config)#access-list outbound permit tcp 132.147.162.14 255.255.0.0 any eq 80
Pix(config)#access-list outbound permit udp 132.147.162.14 255.255.0.0 any eq 53
Pix(config)#access-group outbound in interface inside

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Cisco Firewall :: ASA 5505 Dropping UDP / 53 Traffic On Inside Interface?

Jul 21, 2012

We have a Cisco ASA 5505 (v7.2(3)) with a "fairly" normal configuration yet we have a problem where it appears UDP/53 traffic is denied on our inside network.
 
here is output from our sys log:

SyslogID   Source IP      Dest IP    Description
305006      172.18.22.3                   portmap translation creation failed for udp src inside:172.18.22.156/42013 dst inside:172.18.22.3/53
 
To give some clarification:

172.18.22.3      is one of our DNS servers
172.18.22.156  is a device we're experimenting with.
 
We've bypassed the Cisco by using a 4G wireless router with this same device - and it works flawlessly.Here is a [scrubbed] copy of our config. It is what I inherited from the previous admin - I'm not sure of all its finer points (I'm not Cisco certified -- perhaps I'm just certifiable.)
 
: Saved 
:
 ASA Version 7.2(3)
 !
 hostname [redacted]

[code].....

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Cisco Firewall :: ASA 5510 With Inside Interface And DMZ Not Working

Feb 5, 2012

i have here a ASA 5510 sec k9.
 
I build a Config with a DMZ,INSIDE and OUTSIDE Interface. My Plan is to use the IP-Address of the OUTSIDE Interface with PORT to setup a HTTP Server In the DMZ
 
But my Config doesn't work. And I have no Plan why .....
 
The Inside Interface have to work normal. The Traffic to the Internet is TRiggert from Inside with Dynamic PAT
 
ciscoasa(config)# exit 
ciscoasa# show run
: Saved
:
ASA Version 8.4(1)

[Code].....

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Cisco Firewall :: Failover ASA 5505 - Setup Second Inside Interface On Firewall?

Feb 19, 2012

I have a Cisco ASA 5505 in our office. We are currently using Interface 0 for outside and 1 for inside. We only have 1 Vlan in our environment. We have two three switches behind the firewall. Today the uplink to Interface 1, to the firewall, on the switch went bad. I want to setup a second inside interface on the firewall and configure it as failover incase this happens again. I want to attach it to the other switch. Can I do this? If so, what do I need to do? would it only be a passive/standby interface?

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Cisco Firewall :: ASA5505 Can't Ping New Firewall On Inside Interface

Jul 14, 2011

I've recently upgraded my old firewall from a PIX to an ASA5505 and have been trying to match up the configuration settings to no avail. I have is that I can't ping the new firewall on it's inside interface, despite having "icmp permit any inside" in the running config. Secondly, the server I have on there ("Sar") can't connect out to the internet.I've included the ASA's running config incase anybody can see if something stands out. I have a feeling it's either not letting anything onto the inside interface, or there is no nat going on. Lastly (and possibly relevant), the firewall is actually going at the end of a vlan, which is different to the firewall's inside vlan number. I don't know if this is actually the problem because the server can't connect out even if connected directly into the firewall.

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Cisco Firewall :: ASA 8.4 / NAT SMTP Traffic From Outside To Inside?

Dec 25, 2012

Most examples of NAT translation using an ASA 8.4 are based on servers within a DMZ. In my case it's not because the mailserver also functions as an data and Active Directory server for my local domain.  If tried to config the ASA for a while now and throw it in the corner for a couple of months out of frustration. Now I got some time left during christmas break I decided to start again.My purpose is to NAT SMTP / POP traffic from the internet, trough the ASA to my (inside) server. This is what I got so far. With this config I'm unable to telnet the inside server (192.168.1.10) from a remote location.
  
ASA Version 8.4(3)!hostname ciscoasaenable password cE8UUNd encryptedpasswd 2KFQ.2KYOU encryptednames!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 192.168.1.253 255.255.255.0!interface Vlan2nameif outsidesecurity-level 0ip address 95.*.*.218 255.255.255.248!ftp mode passiveobject network obj_anysubnet 0.0.0.0 0.0.0.0object network server1_smtphost 192.168.1.10object network server1_pop3host 192.168.1.10access-list outside_access_in extended

[code]....
 
I can ping 192.168.1.10 from the ASA CLI. I can Ping DNS 4.2.2.2 from the CLI (internet access). I can Telnet the server from the inside LAN, using: telnet 192.168.1.10 25.But I can't Telnet from an outside location using: Telnet 95.*.*.218 25 Because my server is on the Inside interface (diffenrent subnet) do I need an additional route?

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Cisco Firewall :: 5520 - Traffic From Inside To Outside

Mar 2, 2011

I am setting up a pair of 5520 in A/S mode but the traffic from inside to outside seems blocked somehow.

asa01# sh run : Saved
ASA Version 8.3(1)
host name asa01
enable password LFJ8dTG1HExu/pWQ encrypted
password 2KFQnbNIdI.2KYOU encrypted
names
[code]......

Base on the above configuration, I still cannot ping or HTTP.

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Cisco Firewall :: 5510 Allow Traffic Inside To Outside

Nov 18, 2011

One Host on inside network needs to access customized application hosted on Internet. Its a customized application run on port 80, 443, 5000-to-50020

How do I allow this host access for this specific application. I got ASA 5510 and host is in the inside network, we also got an ACL on inside interface to have control.
 
-Host IP on inside network  - 172.16.30.15
-Application to access - 74.219.x.x
-Inside ACL name - inside-acl

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Cisco Firewall :: 7.2.3 / Upgrade ASA Over VPN Via Inside Interface?

Jan 17, 2013

I am trying to upgrade a Cisco ASA over an IPSEC VPN tunnel. My FTP server is on the remote side of the VPN tunnel but I am initiating connections from the inside interface of the firewall. I am currently managing the Firewall over the VPN via it's inside interface (using the management-access inside) command. When I try and update via FTP, the connection is going straight out the outside interface (and not across the VPN tunnel) I have tried upgrading via TFTP but it keeps stopping randomly with (unspecified error) I normally upgrade via FTP though but it's not working in this instance. Essentially what I am asking, is is there an equivalent command for FTP that there is for TFTP: tftp-server interface ip anyconnect I need the connections to originate from the inside interface so they traverse the VPN. I am running 7.2.3?

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Cisco Firewall :: Allowing Traffic From Inside To Outside ASA5505 7.2(3)

May 15, 2012

Let me start by saying that I'm just starting to study for CCNA, so the ASA seems to be a bit above me yet.  The ASA's we are using is for VPN to our corporate office and only allowing access to our Citrix environment, so no direct internet allowed.  We have a person who works in the remote office who has need for a caption telephone that requires direct access to the internet.  The phone only supports DHCP, and getting the ASA to do an ARP reservations is proving difficult.  For now I wrote an access list to allow it's DHCP address out but it still isn't working.  The access list I wrote is:
 
access-list 101 extended permit ip host xxx.xxx.xxx.124 any log
access-list 101 extended permit ip any any
access-group 101 out interface outside
 
When I do a show access-list I'm seeing that traffic is hitting the access list as the hit counter has increased.  When I do a show conn I'm seeing one of the IP's that the phone should have access to, however the flags are: saA, so I'm assuming they are not getting a response.  According to the manufacturer, only outbound connections are needed, no incoming ports required.  All traffic is TCP.

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Cisco Firewall :: Pix515E 6.3.5 Capturing VPN Traffic On Inside INT

Nov 28, 2011

Quick question. I have a site - site tunnel that is up and running between a Pix 515E and a 3050 appliance.Tunnel is up and running but on the pix side I dont see traffic from a couple of subnets behind the inside interface.On the vpnallow access list there are no hits So I setup a capture on the inside interface to see if the packets is making it to the inside interface and nothing. There is some traffic making it thru the tunnel that would have to hit the inside int first and even that doesnt showup in the capture.

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Cisco Firewall :: 5520 Can't Get Traffic From Inside To Internet

Nov 27, 2011

I am trying to make a basic config on my 5520. The first goal is to make trafic from inside to outside.The internet address is 64.28.29.200 and the default internet gw is 64.28.20.193What am I missing since I can not get trafic from inside to the internet? [code]

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Cisco Firewall :: ASA 5505 - Allow Traffic Between Inside Interfaces

Nov 9, 2011

I trying to allow traffic between 2 inside interfaces with the same security level.  VLAN1 and VLAN15.  The are on different physical ports on the ASA.  I tried to configure this through the GUI Web interface and checked ' enable traffic between two or more interfaces with the same security levels'.  With this ASA version, I do not need NAT to allow this, correct?
  
ASA Version 8.2(1)
!
hostname ciscoasa

[Code].....

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Cisco Firewall :: New ASA 5505 / Can't Ping Inside Interface

May 10, 2011

I have a new ASA 5505 and all is working fine, I can CLI and ASDM into it, but just can't ping the inside interface, do I need to enable a feature to make this work somehow?

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Cisco Firewall :: 5505 Inside Interface To Another Switch?

Apr 23, 2012

I am connecting the inside interface to an upstream switch and therefore will need to assign a static IP address to the inside address as I did below:
 
#sho int ip brief 
Vlan1                      123.123.123.123  YES manual up                    up
 
I will also use this to manage the ASA. I am having a problem with the network configuration of the inside interface as I can't ping the gateway and/or the in IP of the inside interface.Do I need to add any routes?

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Cisco Firewall :: ASA 5512 X 2 Outside And 2 Inside Interface / How To Configure

Jun 7, 2013

I have a Cisco 5512 x Firewall connected with Cisco Layer 3 switch 3750.I have two different WAN connections, one for Data and one for voice. Cisco Layer 3 switch is configured with 2 different VLAN's one for data & other is Voice Vlan. Switch is providing DHCP to computers and IP phones. Voice Pool 192.168.10.0/24 Vlan10 and Data pool 192.168.20.0/24 Vlan20.I need to route my data & voice traffic separately. Cisco ASA is connected with two different ISP's. So, how can I do this configuration so that Voice and Data traffic will route separately.

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Cisco Firewall :: Can't Ping ASA 5510 Inside Interface

Apr 13, 2013

I  ran into a very strange icmp ping issue. The network has been working fine other than the issue listed below, L2L VPN works fine and all three data centers can access each other via L2L VPN.I have three ASA5510. [code]

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Cisco Firewall :: ASA 5550 Inside Interface Hangs

Apr 24, 2012

the inside interface on our primary ASA seemed to "hang". It dropped all the packets it received. Because the interface didnt go down, failover didn't happen. Device's info;

-Cisco Adaptive Security Appliance Software Version 8.2(3)
-Device Manager Version 6.3(3)
-Hardware:   ASA5550, 4096 MB RAM, CPU Pentium 4 3000 MHz
-Internal ATA Compact Flash, 256MB
-BIOS Flash Firmware Hub @ 0xffe00000, 1024KB
 
I attached a capture picture shows that traffic didnt go to the roof when the issue happened. Why the interface would "freeze" randomly?

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Cisco Firewall :: 5505 - Can't Ping ASA Inside Interface

Dec 12, 2011

I have an ASA 5505 that I'm trying to set up a guest network on.  I've configured an interface as a trunk and allowed the 2 vlans but I'm not getting any layer 3 to it.  The switch connected to it is a 3560 and port is configured as a trunk with the same vlans.
 
I can't ping the ASA inside interface but I see its MAC address in the swtich's table.
 
[code]....

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Cisco Firewall ::5520 - NAT SIP Registration From Outside To Inside Interface On ASA?

Mar 7, 2012

I'm trying to NAT SIP registration from OUTSIDE interface to Inside interface on ASA

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Cisco Firewall :: Cannot Ssh Or Ping ASA 5510 From Inside Interface

Apr 4, 2012

The ASA is configured in very simple transparent mode. As desired, traffic can flow in each direction between inside and outside. I can manage the ASA via console and direct connection to the management interface. The problem is that I cannot ping or ssh to the ASA via the inside interface. I need to be able to manage the ASA from any PC on the inside LAN. I suspect I am missing some easy aspect of the configuration but after a lot of hours I'm about at the end of my patience with it. Here is what I believe to be the relevant parts of the config. 
 
ASA Version 8.2(1)
!
firewall transparent
hostname issr1
enable password 2alej83t5cqT0FWd encrypted
passwd 4kleUY438I93.4ljdh encrypted
names

[code]....

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Cisco Firewall :: Slow Access Or NAT To Inside Interface On ASA 9.1

May 13, 2013

I did this on the PIX and it worked like a charm, but I am having some difficulty translating the configuration to an ASA.
 
In the PIX I performed NAT on outside traffic to a specific inside host (web server) to map to the inside interface so that return traffic would go to the same firewall the traffic came in through, The reason for this configuration was because the gateway of last resort was a different firewall and not the firewall the traffic came in through.
 
Now to further give you some history, the gateway of last resort is an ASA running 9.1 (Now), prior to that it was a PIX with v8.0(4), traffic to the aforementioned web server came in through the gateway of last resort), which at the time was the PIX.
 
However, for some reason after swapping the PIX for an ASA (same rules, updated NAT rules for 9.1) access to the same web server is slow. Not sure why, but it’s the case. To alleviate the slowness we experienced, and until I can figure out why this occurs on the ASA, I placed a PIX on the network that only listens for traffic for the web server in question. On this PIX I map to the inside interface so that traffic flow works and external clients can access the web server with no issues.
 
So two questions, one I would like to use the configuration I have for the web server on the PIX on the ASA to see if that setup on the ASA works better, but having difficulty translating the rules to the ASA.
 
Second question, (Slow access with ASA to a web server, but fast with PIX to the same web server)?
 
P.S. Addresses in attached picture config are not real, but I know what they translate to.

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Cisco Firewall :: ASA 5510 Inside Access To NAT IP On Outside Interface

Jun 28, 2012

we have a server that has an outside IP and an inside IP. It's inside ip is 192.168.222.30/24 and it's outside IP is 199.204.50.2/29. The connection to this server from the outside is perfectly fine, but access from inside users to the NAT'd IP which is 199.204.50.2/29 is having issues, however, access to the inside IP works fine (this part makes sense)Will It be a must to set the inside DNS A record to the inside IP and not the outside IP, or can users on the inside interface access the NAT'd IP which is assigned to the server
 
LAN(192.168.222.0/24)<=====>InsideASAOutside<=====>(Server with NAT IP 192.168.222.30/24, it's also physicall assigned to this server).This is an ASA 5510 with 8.4.                  

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Cisco Firewall :: ASA 5520 - Permit Traffic To Inside Via MAC - Address?

Apr 6, 2011

I have a handheld device that will be used for inventory outside of our office. It has 3g capabilities. Is there anyway I can permit traffic from this device from the outside world coming into my network?  I need to open a couple of ports so it can hit the server. But I have no intention to open these ports up to the entire world.  I use an ASA 5520 with a managed router from our provider. I looked around on the Cisco site and the only information I found was for permitting and denying traffic from devices that are within the network.

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Cisco Firewall :: ASA 5540 Blocking Legit Traffic From Inside

Aug 21, 2011

I just made a move from a PIX 506 to an ASA 5540.  I have a user that currently logs into a web portal and runs a job.  It is now erroring out.  When I run the test it gives me the following message:
 
Testing ports...
Port 1433: Failed
Port 1150: Success
Port 80: Success
Port 443: Success
 
One or more tests have failed
 
The computer we access this site from is on the inside network and the ACL says permit ip any any from the inside out so I am not sure why it is failing.  Under the ASA Home screen I see the Top 10 Protected Servers under SYN Attack and it appears that the ASA thinks this is some sort of attack. 

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Cisco Firewall :: ASA5510 - Traffic Between Multiple Inside Interfaces

Oct 10, 2011

I've been trying to figure this one out for quite a while.  I currently have 2 inside interfaces (data, phone) and I am moving to 3 inside interfaces (servers, workstations, phones).  I have not been able to get any traffic between the interfaces.  With the current setup it was not a major problem.  With the new setup it will be a major problem.
 
Below is a sanitized version of the config.

ASA Version 8.2(1)
!
hostname BOB

[Code].....

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Cisco Firewall :: ASA 5505 NAT Rules Blocking Inside Traffic

Jan 7, 2012

Previous attempts to set up these NAT rules has been met with minimal success. We have been able to get the NAT rules created, and able to ping our inside servers and receivers from a  different outside network, but every time we get that far our internal network crashes.  Running the Packet Trace utility via the ASDM shows that internal traffic from the servers to  the workstations is being blocked by the default implicit rule under the access rule heading  that states "any to any, service being ip, action= deny". Reverse traffic from the workstations to  the servers is being allowed though. In an effort to start over again, the Cisco ASA has been  Factory Defaulted via the CLI, and has had it's Inside network, and Outside IP address set back up. DHCP pool has been setup for a minimal amount of addresses on the   inside network, since  most of our equipment will always be assigned statics. We reset our static NAT policies, and  seem to be having the same problem. My partner and I have been working on this for some time now, and have ourselves so frustrated that I know we are missing something simple. [code]

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Cisco Firewall :: PIX 515e Accessing Node On DMZ From Inside Interface

Mar 31, 2013

I have a PIX 515e running version 7.2(4).I have 2 interfaces - DMZ3 (sec lvl 50) and LAB (sec lvl 100) behind the pix. There is also the OUTSIDE interface (sec lvl 0) which connects to the internet.In DMZ3 I have a webserver - x.x.124.217/24 (host is NATed via static command to public IP)In LAB I have a server - x.x.1.203/24 (entire range is NATed via NAT/Global statements to public IP)The server in LAB needs to access a webserver in DMZ3. From the internet both of these hosts have public addresses that are NATed into the inside addresses. I can reach the webserver from the internet, but not from the LAB interface.I think I have to add a static command so that the LAB host can access the DMZ3 host without accessing the internet.

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Cisco Firewall :: ASA5505 Icmp Denied For Inside Interface?

May 6, 2012

I have ASA5505 configured with internal network as 192.168.15.0  and default gateway 192.168.15.1 From the inside network, i'm able to access internet and able to ping all website (enabled ping).   and all internel  network devices can ping each other.  Except  i cannot ping my gateway (ASA5505) 192.168.15.1.  I'm continously seeing this message on the log, when i tried to ping.. How to fix this?
 
Denied ICMP type=8, code=0 from 192.168.15.xxx on interface inside
 
replace xxx with my network devices that try to ping the gateway..I dont want outsiders ping my gateway, i need ping for inside internal network only.

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Cisco Firewall :: ASA 5520 - Static Route To Inside Interface

Mar 29, 2011

I have inherited an ASA 5520.  In doing some auditing of the setup, I have noticed a Static Route that has the inside interface of the ASA as the Gateway IP.  I am trying to understand the purpose of this route or why a route would be setup this way.

Example Static Route:
Inside 10.xx.31.0 255.255.255.0 10.xx.xx.10 (10.xx.xx.10 is the inside interface of ASA)

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Cisco Firewall :: ASA 5505 - Dropping TCP Connections On Inside Interface

Feb 12, 2013

Trying to add inside routes on an ASA 5505 to point traffic to another gateway for other connected networks is resulting in the following error 6Sep 16200 819:13:5810601510.184.236.1265003810.170.54.1823389Deny TCP (no connection) from 10.184.236.126/50038 to 10.170.54.182/3389 flags RST on interface insideI believe the problem is due to the Asymetric tcp connection and the ASA is dropping the connection because it only see one half of the traffic.Is there a way we can stop the firewall dropping the TCP connections on the inside interface? i've tried removing the threat managment which didnt work.Annoying thing is were putting the ASA 5505's in to replace old Watchguard soho firewalls only the watchguards forwarded the traffic no problem at all.

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Cisco Firewall :: How To Access ASA 5500 Via SSH From Internet To Inside Interface

Mar 9, 2011

administrator wants  to manage ASA 5500 using inside interface.{telnet or ssh].Allowed telnet and ssh in ASA 5500 but unable to get access from administrator PC..Is there a way to do it without enabling NAT on the ASA? Will a specific rule on ASA allow adminstrator to access ASA 5500 inside interface via ssh or telnet?

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