I have 2 modules of FWSM in 6500 switch (failover).I need 5 context.When I use in routed mode (like in the picture) , I cannot ping the servers behind the firewall. (I have ping to FW context),In transparent mode, it is not happening.what is the problem with routed mode?
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I have installed quite recently a cisco ASA 5520 replacing a linux based firewall I have only 2 zones ..one is internal netowrk and other external the internal network has web servers, dns and mail server all having public IPs Every thing is OK but i have seen that if I try to ping an external server for example [URL] i cannot ping says
[sylvan@kmdns1 ~]$ ping www.yahoo.com
PING eu-fp.wa1.b.yahoo.com (87.248.112.181) 56(84) bytes of data.
--- eu-fp.wa1.b.yahoo.com ping statistics ---
6 packets transmitted, 0 received, 100% packet loss, time 5010ms
but I can ping from systems which are outside my firewall perfectly with the linux firewall i had before i could ping perfectly to yahoo from any of my internal servers?
I have 2 modules of FWSM in 6500 switch (failover). I need 5 context. When I use in routed mode (like in the picture) , I cannot ping the servers behind the firewall. (I have ping to FW context) In transparent mode, it is not happening.
View 1 Replies View RelatedNew to the ASA 5505 8.4 software version, but here is what I'm trying to do:
-Single static public IP: 16.2.3.4
-Need to PAT several ports to three separate servers behind firewall
-One server houses email, pptp server, ftp server and web services: 10.1.20.91
-One server houses drac management (port 445): 10.1.20.92
-One server is the IP phone server using a range of ports: 10.1.20.156
Basically, need to PAT the ports associated with each server to the respective servers behind the ASA 5505. Is anything missing from this config? Do I need to include a global policy for PPTP and SMTP? [code]
I want to add new vlan in existing firewall group in 6500. I am confused if it will add new vlan or overwrite.. I am using ASASM module with 6500.
View 3 Replies View RelatedWe have 2 FWSM modules in each 6500 switches. 1st module is having 04 firewall vlan groups with 18 vlan interfaces in a single context firewall. All are working fine with no issues. Recently we create one more vlan on MFSC and add into the same firewall module. However newly created vlan inside the FW is not able to communicate with outside and also outside users not able to reach newly created subnet. But within the firewall zones (other interfaces) it can communicate. Once we did packet capture we noticed that its hitting firewall outside interface only and when we ping we got TTL expired error. we have default routes to outside and there's no any route inside as new segment is within the firewall (no any hop).
I guess there's no limitation on number of vlans that we can assign on one firewall eventhough there is a limitation for number of vlan-group which is 16 max (but we are within that limit).
How to secure vlans on Catalyst 6500 by using Cisco ASA Firewalls?There are no free modules on Catalyst 6500 to install a FWSM module.What is the best configuration to secure vlans (~80 vlans) by using cisco ASA firewalls (context, hairpining...)?
View 1 Replies View RelatedWe are planning to split the Private servers from the DMZ Servers and configure an additional Interface and segment for this purpose.
Private Servers Segment: 192.168.4.0/24 (there is no DHCP all servers' IPs are statically configured)
DMZ Segment: 192.168.3.0/24 (This is a future deployment)
LAN Segment: 172.17.0.0/16
Both, Private Servers and DMZ Servers are in a collocation as well as the ASA5520. There are multiple Branch offices that uses subnets within the 172.17.0.0/16 Network and they are connected to the ASA5520 via Metro-E.
I do not know if this is possible but what I want to do is this:
In order to avoid the change of internal DNS records I want to mask the DMZ servers with a Private Server IP when a Private server or LAN host wants to access it like this:
The FTP server in the DMZ has the IP address: 192.168.3.100. But when a PC from the LAN wants to reach the FTP server it should points to its old IP: 192.168.4.100. This way the PC sends a packet to the ftp.corporate.net (192.168.4.100) the ASA recieves the packet and translate it to the (192.168.3.100) and send it out through the DMZ Interface.
Also if the Private Servers wants to reach the same FTP the ASA will act like a proxy-ARP and send the paquet to the DMZ by means of the translation of the IP.
I am able to ping from Switch to firewall inside ip and user desktop ip but unable to ping from user desktop to FW Inside ip.. config is below for both switch and FW Cisco ASA5510....
TechCore-SW#ping 172.22.15.10
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.22.15.10, timeout is 2 seconds:
[Code].....
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.
View 32 Replies View RelatedInternet ISP -> Juniper SRX 210 Ge-0/0/0
Juniper fe0/0/2 -> Cisco ASA 5505
Cisco ASA 5505 - >Inernal LAN switch.
1. Internet is connected to Juniper Ge0/0/0 via /30 IP.
2. Juniper fe0/0/2 port is configured as inet port and configured the Internal public LAN pool provided by the ISP. And this port is directly connected to Cisco ASA 5505 E0/0. Its a /28 pool IP address. This interface is configured as outside and security level set to 0.
From Juniper SRX, am able to ping public Internet IPs (8.8.8.8).
Issue:
1. From ASA am unable to ping public ip configured on Juniper G0/0/0 port.(/30)
2. From ASA no other Public internet IP is pinging.
Troubleshooting Done so far.
1, Configured icmp inspection on ASA.
2. Used the packet tracer in ASA, it shows the packet is flowing outside without a drop.
3. Allowed all services in untrust zone in bound traffic in Juniper SRX.
4. Viewed the logs when I was trying the ping 8.8.8.8 in ASA. It says "Tear down ICMP connection for faddrr **** gaddr **
We are going to impliment Spectrum (CA) in my network,i have ASA-5580-20 firewall now my spectrum server want to communicate with firewall,then only it will discover the firewall logs.Now the problem is my spectrum server is in MZ zone(10.10.10.45) security leval is 70 and my inside interface(10.20.20.101) security leval is 100.
I am unable to ping from spectrum server to firewall because of high security leval.How can i solve this problem,can i change my inside security leval to 69 then i think it will ping.
I am in the process of adding a lot of servers to sit behind our new ASA 5505 (8.4) firewall. At the moment I have added 2 servers and they are both NAT'ed to 2 different public IPs.
Server 1 192.168.10.1 -> 80.*.*.1
Server 2 192.168.10.111 -> 80.*.*.6
The first server can only be RDP'ed in to using its public IP which is what I want it to do. The second one has most of the service ports open like 443, 80, 110, 25 and etc. However when I try and browse externally to [URL]. I get an " Error 107(net::ERR_SSL_PROTOCOL_ERROR): SSL protocol error." in Google Chrome or any other browser. and the ASA reports:11:27:30192.168.10.111262680.*.*.6443Inbound TCP connection denied from 192.168.10.111/2626 to 80.*.*.6/443 flags SYN on interface inside and I also get a Land to Land attack detected from 80.*.*.6 to 80.*.*.6
Is it worth setting up a DMZ or can I get away with the setup I have?
In my Cisco ASA 5550, I need to set two different syslogs servers, and I need to send the system logs to the first one (only admins login/logout), and the traffic logs and all the rest (informational level) to the second one. Do you know if is it possible or not and, if yes, how to configure it?
View 6 Replies View RelatedI have the following configuration: An ASA5505 with Security bundle license sits at the perimeter with a single public IP address assigned to VLAN2 (outside) out of a /29 block. I have two servers with static IP addresses of 10.70.21.6 and 10.70.21.7 connected to the inside ports with default gateway of 10.70.21.1 (which is the IP address for the VLAN1 inside). I have already configured a default static route and NATing (PAT) so we have internet connection for the PCs. Now I need to configure the ASA to allow remote desktop connection to the servers (with static IP addresses above). Can I use a spare public IP address for each server and if so, whats the syntax? or is there another method? I have used this before but I had a Cisco 2811 router on the perimeter so the syntax was at then: ip nat inside source static 10.30.1.248 81.85.199.44
View 6 Replies View RelatedUpgrading from a PIX 515 ,V6.2, I can get internet traffic out through the ASA , but no traffic in to the servers. The NATS are the same on the old firewall. The routers outside the firewalls are doing further natting from the .253 netwrok to a publilc address. No changes have taken place on the routers. [code]
View 3 Replies View RelatedWe can´t reach DMZ servers from other DMZ servers?If I make a ping from DMZ server to another, sometimes only recieve one ping, sometimes 4, sometimes 0.How can I allow the traffic between DMZ servers??
(ASA 5520 Version 8.4)
I have a AD server that needs to access to servers at a company out on the web. it an asa the protocol is ldap
AD server 10.12.1.56 / 24
External servers 206.123.45.122, 174.87.96.143
ASA configuration
access-list outside permit tcp host 206.123.45.122 host 10.12.1.56 eq 389
access-list outside permit tcp host 174.87.96.143 host 10.12.1.56 eq 380
I am trying to set up an ASA5550 so that I can access the servers behind it. Simple.
As of now, I am unable to even create an access-list to allow traffic from my remote IP into the firewall. As far as my level of experience with Cisco firewalls, it's basically zero but I have taken the Cisco CCNAX class and feel that I have a good understanding of the fundamentals. That said, we only dealt with routers and switches, and it's not impossible that I'm missing something that would be totally obvious to most folks on this board. I've used CLI and ASDM with no success.
Here are the relevant parts of the config:
[code]...
How to assign NAT IP to server from Firewall
View 2 Replies View RelatedWe have a pair of 6500s with Sup720 running 12.2(33)SXI3. Each has an ACE-20 (s/w A2(2.0)) and FWSM (s/w v3.2(15)). We have reached a limit on the number of rules we can configure on the FWSM, and have determined that we shall upgrade to 4.1(5), with ASDM to 6.2(2)F. A question has been raised regarding the s/w on the ACE-20 modules. Do we need to upgrade them as well?
View 2 Replies View RelatedI have had a strange issue with a pair of FWSM's in 2 6500's, it seems there was a failover but both module's have been reset.
CAT1
Feb 03 17:08:46.525: %SNMP-5-MODULETRAP: Module 8 [Down] Trap Feb 03 17:08:46.522: SP: The PC in slot 8 is shutting down. Please wait ...Feb 03 17:09:01.525: SP: shutdown_pc_process:No response from module 8 Feb 03 17:09:11.382: %C6KPWR-SP-4-DISABLED: power to module in slot 8 set off (Reset) Feb 03 17:10:56.093: %DIAG-SP-6-RUN_MINIMUM: Module 8: Running Minimal Diagnostics...Feb 03 17:10:59.796: %SVCLC-5-FWVTPMODE: VTP
[Code]...
We run a 6500 with an FWSM with multiple security contexts as well as cascading contexts with a "shared V LAN" . There is a problem with regards to Linux machines and our shared network.
For example, we have three Linux machines in production, each in three separate V LAN's. For me to communicate to these boxes from one V LAN to another I must first ping the server. If I do not ping the server it will not bring up a connection like ssh or HTTP, etc. Below is the error I get from the FWSM that hosts the Linux server, but like I said once I ping the server the error goes away. We only have this problem with Linux machines, and it is a problem for all three of them. Is the FWSM having issues understanding something with all three Linux boxes? Below is the error I get at first, when I try to SSH from one V LAN to another V LAN with the Linux machine.
6 Dec 21 2012 16:33:54 106015 10.255.12.109 22 10.255.1.30 63000
Deny TCP (no connection) from 10.255.12.109/22 to 10.255.1.30/63000 flags SYN ACK on interface inside.
Below is what happens when I initiate a ping to the Linux Server and then ssh again. Notice it builds the connection with no problem after the ping. During the ping it builds the dynamic translation, and then when I ssh it builds the TCP connection. Do you know why this could be?
6 Dec 21 2012 16:35:08 305009 10.255.12.109 10.255.12.109
[Code]....
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?
I am having some trouble accessing some backup Email (Outlook Web Access) and Citrix servers located behind an ASA 5505 firewall at a remote datacentre. Simply put, when I go to the specific URL (e.g. [URL]) I do not arrive at the splash page, I just get a message saying that the server took too long to respond in the web browser. I'm wondering whether I have missed something on the configuration or the firewall itself is not letting my requests through. The remote servers are located at a remote Disaster Recovery site and use the subnet 192.168.4.0/24. I am at head office which is connected to the DR site via a VPN using 192.168.1.0/24.
[Code] .....
We have a new installation of a ASA 5505 and are trying to get some NAT issues straightened out. On our internal network, we have two servers running Filemaker Server, a relational database server that clients connect with using port 5003. Our goal is to be able to allow users from the outside to access either of these servers as needed. I know how to set up a simple static NAT rule and matching Access rule in ASDM which would be fine for a case in which only one server using a given port is running on a network, but for simple static rules I seem to be blocked from entering a different translated port number from the orginal port number, which becomes a problem when two servers we need to access from the outside are running software using the same port number.
What is the simplest way to address this need? I am guessing that I need to set up a scenario like this, where port 5004 (or any arbitrarily choosen unused port, can be used to access the second server: [code]
I am on version 8.2(1) of ASA Code.When accessing a SQL server on a secure internal interface,(Traffic is sourcing from DMZ) i'm getting some timeouts on the initial connection on port 1433. All subsequent connections work fine. Packet tracer shows the connection builds properly, and shouldn't have a connectivity issue. The problem server is a webserver that connects back through the firewall to access the SQL server on port 1433. We also have many other webservers in the DMZ which access the same SQL server, but do not have the same timeout issues. Here are my timeouts, from the config
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
arp timeout 14400
I've seen a couple articles about increasing the tcp timeout to 3 hours for the DMZ interface?
I have configured the ASA 5505 for internet access and outside users to use two servers in the DMZ. Every thing is working fine. When I was configure VPN, I did some mistake I guess, now inside users are not able to access internet. They get an error 405. Thats an error. The request method XXX is inappropriate for the URL /. Thats all we know. Even I am not able to access the server in the DMZ from outside and I get an error : Bad Request - Invalid HeaderThese things just happend after I did some thing on the ASA. I copy and pasted the my old configuration but still insider users are not able to connect to internet and from outside I am not ableto connect to server. The weired thing is that I can user VPN with out any issues. I can connect to vpn but I cant access any internal resources. Even inside users are able to ping internet addresses with out any issue.
View 2 Replies View RelatedWe are going to setup a L2L VPN with a vendor and they asked us to NAT a couple IP addresses for remote access to a couple of servers on our inside network. Our device is an ASA 5580 with version 8.1 and we have a handfull of public IP addresses for use if needed. The vendor's remote network is a public IP address but for this posting I will use 192.168.10.0. Our inside servers are 10.100.10.20 and 10.100.10.30. Because 10.100.10 is in use with another customer they asked us to NAT 10.77.97.20 and 10.77.97.30 to the two inside servers.
View 2 Replies View RelatedCisco ASA 5510 directly facing the internet on E0/0 (1 Public IP only) with internal LAN on E0/1. Exchange 2010 OWA working fine with ACL and NAT rules configured.Problem:
•1. Cannot publish internal web servers to outside, have tried PAT.
•2. Have multiple web servers to publish with all on one protocol (HTTP) to a single public IP which I don’t know if it’s possible on a ASA.
•3.When SSL VPN is configured with Local user database, connecting from Anyconnect client gives a certificate error. Upon viewing the certificate it points to the internal mail server.
Recently moved into the hardware firewall space and have a ASA 5510. Having some issues trying to get traffic through the box to my 4 dedicated servers. all the servers have static IP's and are connected to a private switch into one of the ethernet ports on the firewall(0/2). Public internet connection into another(0/0). 1 of my servers has a connection to the management port, and the public switch, and this is the one im trying to do the configuration on.
Im unsure what to set the IP address of my "outside" interface as. need to have RDP,FTP, HTTP traffic going to each of the 4 servers independently, pretty sure i can get the rules in place to allow this, but cant seem to get any traffic to go through the firewall to any of the other 3 servers.
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 ?
I got the charge of a ASA 5510 running with 8.3(1) version.Found that this is simple config with Patting for inside host and couple of Static Nat for web servers and FTP server as well.
There is lots of other configuration being done,I assume for the purpose of just R&D by the previous administrator.I need to understand if the following Nat statements holding any relevance?
Where we are running Only NETWORK_OBJ_192.168.0.0/23 subnet at inside and there is no other subnet defined in rest of the statements.i.e 10.0.0.0/27 and 192.168.1.128/27 doesn't exist at all.
