I'am using ASA 5510 and I try to understand how PAT is working.I want to add a Mail Server in the LAN and a webmail using port 3000 on the server. ( webmail must be reachable from the WAN)This is my Configuration :actually LAN users access internet using NAT with one global IP ( 194.x.x.69) which is the ASA WAN interface.
WAN ----- ISP Router ---------- FW ---------- LAN -------- Mail Server + Webmail | (25) | (3000) 194.x.x.69 192.168.1.254 192.168.1.6
I need to forward port 3000 and port 25 from outside to inside.For example, from the WAN : [URL] must be redirect toward 192.168.1.6:3000 . What is the Correct Configuration ? And what about the Inside/Outside Traffic,Is there any configuration to add ?
I have a question about access-lists on ASA: (5520 running 8.4)Often I want to permit all traffic from networks behind an interface (let's say DMZ in this example) to Internet, but NOT to internal networks. Then I first configure a Deny from DMZ to all internal network and then a Permit to ANY. If I forget the first Deny I will allow all traffic also to my internal networks. Is it possible to configure an access-list that permit all traffic from a network to all networks that are reachable via a given interface? In this example: Permit all traffic from DMZ to all networks that are reachable via the Outside-interface? This should permit traffic to Internet and deny traffic to internal networks in one statement.If I specify the outside-interface as the destination only traffic to the interface itself will be allowed.
I have a router in front of a few firewalls on an internet link. All traffic from the inside network must go through one of the firewalls to get out through the router and similarly there is a dmz on one of the firewalls.I am trying to make sure the router is fully hardened.Should I apply an access list on the outside interface of the router along with the access list for management access?
I need to configure the access list on the outbound internet port to accept the following:
ip access list 10 access-list 10 permit PPTP vpn any xxx.xxx.xxx.xxx access-list 10 permit RDP any xxx.xxx.xxx.xxx access-list 10 permit FTP any xxx.xxx.xxx.xxx access-list 10 permit Postgresql any xxx.xxx.xxx.xxx access-list 10 permit MacARD any xxx.xxx.xxx.xxx
This method does not work on the Cisco 2921 router with FW
On firewall we have zone created for dmz and ip is 192.x.x.x and it is connected to 2950 switch(DMZ switch) with vlan 25..We have L3 switch on this we have created vlan 25 and connected cable from L3 with 2950 switch with vlan 25
As we have the servers on L3 and wanted to bring on dmz zone we have connected a cable.Now the problem is when i connect a pc on 2950 switch (directly on dmz switch) with access-list below we are not geeting any hist on it.
I'm trying to configure an extended access list on one AS5350XM but I get one way hearing on a voice calls and I can't determine why (please see the attached diagram). There is an OSPF running on both gigabit interfaces and the Loopback address is also advertised (it is actually the voip IP address). The access list is applied on both interfaces in the inbound direction. There is another gateway with IP:184.108.40.206 (no firewalls here) and the routing between gateways is working properly.
Here is part of the access list (applied on AS5350):
. . permit ip host 220.127.116.11 host 18.104.22.168 . .
When I review the log of the AS5350xm I see many errors like this one:
%SEC-6-IPACCESSLOGP: list example denied udp 22.214.171.124(16638) -> 126.96.36.199(18094), 1 packet
So how it is possible to see this error since the access list is in inbound direction and the IP address (188.8.131.52) is open. I don't have problems when I do telnet or ssh from 184.108.40.206 to 220.127.116.11.
I am unable to remove an access list. Currently this this access list contains 4 lines of remarks. I was unsure if I was entering the command correctly and now I have 4 lines of "trash" that needs to be removed.
Symptoms: The "sh run" command shows that I have access-list 100 defined. The "sh access-list" returns nothing.
Process I have tried: config t no access-list 100 no access-list remark Test (just trying anything at this point) clear configure access-list 100 (This returns "Invalid input detected at '^' marker" and the '^' is under the 'e' in clear.)
So the "clear configure" command is not working. The "no access-list" commands does not return an error but does not remove anything. What step am I missing? Let me know if I can provide any more information.
I have just upgraded a ASA5510 from 8.2 to 8.3 using migration tool.All seemed to go well, still double checking the config as this is a bench test of upgrade prior to filed upgrades.
Anyway one thing that is slightly frustrating is that the migration has expanded all of my access-lists, so we maybe had 10 lines of config relating to access-lists based on access-groups, now we have hundreds of lines.On ASDM this is bad enough but on CLI with show run its a bit of a bind.
Is there any way to un-expand the access list or do I simply delete and start again using my access groups.
I'm trying to add an access-list rule to allow internal servers to connect an outside host on a asa 5540. The hostname translates to multiple ip's. Normally I just lookup the ip address or one of the ip's the hostname translates too and use that in the access-list as the host. For some reason the actual ip's, which are a few, are not always available so using a specific ip sometimes does not work, thus the reason I have to use the hostname instead of the ip. I have 2 hostnames. www.hostname.com and subdomain.hostname.com.
This is how I normally add these rules (the ip addresses are fictive): access-list internet_access extended permit tcp host 192.168.50.5 host 18.104.22.168 eq www log
When I try to add this using the hostname on our asa I get an error: access-list internet_access extended permit tcp host 192.168.50.5 host www.hostname.com ?ERROR: % Unrecognized command
I've tried it without the 'www', so hostname.com but same error.
I have very strange behaviour on my Cisco 2801 router when I applied access list on wan interface.
SIP Provider <----> Cisco 2801 <-----> CUCM 6
We are using Cisco 2801 as Voice gateway for CUCM 6. so only one purpose of this router is just receiving calls on sip dial-peer and transfering to internal network.
If you look on access list below, if 'log' words don't present on these 2 lines, access list didn't work. Problem with it is that when I establish call from us or to us I can't hear incomming RPT stream, but other side can hear me. But when I type word 'log' there, everything stars working immediately.
I created some acess-lists, and you can assign a logging level to this access-list. Now this ACL has a lot of hits, so i want to see whats happening. Only the log I then see is completely empty. I cannot figure out how to get some info in that log.
I think there is some global logging setting i probably need to enable in order to get anything logged at all, but i cannot figure out which.
I'm configuring a 5505 for a remote office. Until they are assigned a static ip by the provider I will have to use the providers dhcp address. How do I construct an access list for the outside interface using the external address if I don't know it yet? is there a commnd that will insert the ip address in to the access list once one is assigned?
I have 3 3560 switches which are configured with trunks between them. They run vlan 10, 11 & 12. I have a 'core' switch (switch 1) of these 3 to which an MPLS router is connected on vlan12. I in addition have another switch hanging off the 'core' switch via a routed link (switch 4). I have EIGRP configured as a stub and as such the IP address on the routed link at the core switch end is of a /24 from v lan 1 on the other switch. This makes the route directly connected and therefore distributed via EIGRP stubs. Switch 1 is then exchanging routes with the MPLS router (via EIGRP).
The problem I have is that from any sub net on any switch (switch 1, 2 or 3) I can ping 192.168.13.1 (switch 4). When I try and ping switch 4 from over the MPLS I am unable to. If I trace to the switch I see it reaches the outside of the MPLS router, but is then unresponsive. The same applies if I try to ping switch 1 on 192.168.13.2. Any of the other IP addresses of switch 1 respond.
The MPLS network is a managed solution to which I have no access. I'm told that the MPLS provider is able to ping switch 1 & switch 4 on the 192.168.13.x addresses from a remote router (192.168.32.2). I have tried from a switch on the same L2 sub net (192.168.32.1) and I don't get a response.
From switch 4 I am able to ping the switch on 1 of it's interfaces (192.168.19.1), but not the interface I mentioned above 192.168.32.1. There are no access lists in place on the switches and no firewalls between the sites.
I have an ASA pair configured to replace a router that hosts a collection of IPSec Tunnels. Tunnels appear to work. I am lab'ing some additional controls that I would like to implement. On the Production Router that i plan to replace with the ASA's the current Tunnels are all wide open (all traffic allowed to pass). I was hoping to lock things down a little without having to reconfigure all of the Tunnels. My though was that an ACL on the Inside Interface blocking selected traffic Out (so into the LAN) should not impact the stability of the Tunnels but allow me to restrict some traffic from entering the LAN. One port that I was attempting to block is RDP 3389. When this ACL is applied to the inside interface it does not block Port 3389 at all. What am I missing? Is it that the trffic is being allowed because it is coming through one of my 'open' Tunnels?
Shouldn't IPSec Tunnel traffic be processed by the Inside Interface ACL just like all other traffic?
Only trying to have the mail server reachable via the secondary ISP link if the primary ISP link goes out. The public MX records with priority markings should make it so any outside hosts tries the first ISP address then the second ISP address if the first is unavailable. I would be using object tracking to control the default gateway in the ASA. I'm just a bit fuzzy on the NAT with a dual ISP config on single box.It shouldn't happen but... if traffic comes in on ISP2 while ISP1 is still up (and the current default gate) that traffic should return out the ISP2 interface (using the ISP2 address and avoiding asymmetric routing) since there already an existing connection present inside the ASA. Any server initiated traffic would still use the current default gateway defined via object tracking on the ASA.
I write here to see if some kind soul can not solve my problem (which is common to seeso many people around the world). problem: I have a mail server (192.168.1.17) configured static NAT because it is accessible byPublic IP (PPP.PPP.PPP.PPP). Everything works properly from the outside, but if I get my Mail server (on port 443) from the internal network (192.168.1.xxx) there 'verse. This configuration is called Nat inside-to-inside is done by default by some SOHO routers(such as the TPLINK from 25 euros) but Cisco did not succeed. I search on the internet for 2 days without a get nowhere. PS: I have a Cisco 1801 router. (or 1941 as another router).
When I'm pinging my mail server, it gave me different IP's at different times. As the mail server is actually owned by us, I would like to know if that is possible without the IP actually being changed by someone. This is really critical for me. I didn't mean to cross post so providing the URL of the other place where I posted..
If you'd like I may attach the screenshots for the same, but don't think that will server any purpose.
I've got some problem with my Mail Server since I've migrated to an ASA5510.Actually the server is in a DMZ with a private Ip ( 10.x.x.2) and it is translated to a Public IP ( 194.x.x.65).I use these configuration :
When I'm pinging my mail server, it gave me different IP's at different times. As the mail server is actually owned by us, I would like to know if that is possible without the IP actually being changed by someone.
Just installed a RV042 with dual wan connections. Would like to make the WAN 2 (new cable modem as well) the primary connection over WAN1 (DSL), however whenever I switch from WAN1 to WAN2 in Smark Link set up, our email server will not send mail out, even though nothing is blocking the connection.
Region : Denmark Model : TL-MR3420 Hardware Version : V2 Firmware Version : 3.13.27 Build 121206 Rel.60215n
I have a TL-MR3420 router placed in a remote location. The internet connection is via 3G, and since the telco is shifting the IP every 24 hours, the router is configured with DDNS from no-ip.org. This is working OK most days, but sometimes the DNS fails to update. To be able to trobleshoot it, I am trying to make my router send a mail with the logfile every hour. This function seems to be easy and out-of-the-box, but it doesn't wiork. Whenever I try to mail the log I get the error message "Fail to Connect the mail server.".
It is not possible to enter another SMTP-port, so I asume the standard port 25 (like this thread). Most ISP-mail services require SSL/TLS and/or use an alternative port, so I have made my own server. This server is visible on the Internet, and I (and others) are able to connect and send mails using smtp on port 25. But, still my remote TL-MR3420 keep saying "Fail to Connect the mail server.". I have tried nearly everything, including disabling authentication and giving the IP-address of the smtp server directly instead of the URL.