Cisco Firewall :: ASA 5520 Flow Is Denied By Configured Rule
May 28, 2013
I am attempting to allow traffic from one vlan to another.Vlan 1 is on Interface 0/2.vlan1Vlan 2 is on int 0/3.vlan2Each vlan can communicate inside it's own vlan, and the gateway on each responds to vlan specific clients My problem is that I am unable to communicate between the two vlans. Using the ASDM packet tracer tool, I find that packets are denied by the default rule (on the second Access List lookup). It appears as if the packet never reaches the other interface. The access rules are set up to allow traffic from one vlan to another (inbound), on both interfaces. Testing from either vlan to connect to the other fails. Below are the accee-rules for each vlans. Once I get basic connectivity working.
access-list aVlan1; 3 elements; name hash: 0xadecbc34
access-list aVlan1 line 1 extended permit ip any 192.168.151.64 255.255.255.192 (hitcnt=0) 0xeb0a6bb8
access-list aVlan1 line 2 extended permit ip any 192.168.151.128 255.255.255.128 (hitcnt=0) 0x3a7dfade
access-list aVlan1 line 3 extended permit ip any 192.168.151.0 255.255.255.0 (hitcnt=0) 0x93302455
access-list aVlan2_access_in; 3 elements; name hash: 0x6dc9adc7
access-list aVlan2_access_in line 1 extended permit ip 192.168.151.64 255.255.255.192 192.168.150.0 255.255.255.240 (hitcnt=0) 0x054508b7
access-list aVlan2_access_in line 2 extended permit ip 192.168.151.128 255.255.255.128 192.168.150.0 255.255.255.240 (hitcnt=0) 0xc125c41e
access-list aVlan2_access_in line 3 extended permit ip host 192.168.151.3 192.168.150.0 255.255.255.240 (hitcnt=0) 0x4adc114c
View 19 Replies
ADVERTISEMENT
Jan 29, 2013
I have created a VPN tunnel between a UC540 and ASA running software version 9.1, I am unable to ping from the outside from a network 192.168.10.0 / 24 coming in on the outside interface to the inside network 172.16.1.0 /24. I have tried various commands and some of them may not be necessary. [code]
View 3 Replies
View Related
Jul 4, 2012
I am trying to lock down the VPN access on my Cisco 5520 ASA's whereby I wish not to allow users to SSH access etc on servers running on the same interface that they are VPNing into.
I did not originally configure the ASA and so I am slightly confused by some config on it. Currently when I attempt to PING a server within the same interface as the VPN network I get the following error in the logs below.
5 Jul 05 2012 09:45:15 305013 monitoringsystem Asymmetric NAT rules matched for forward and reverse flows; Connection for icmp src dmzAHdata:VPN IP dst AHdata:monitoringsystem (type 8, code 0) denied due to NAT reverse path failure
As a workaround I created a NAT exempt rule which then allowed traffic to the server in question however I wish to limit the traffic to only ICMP and when I do this in the firewall it does not take affect. Is this because of the NAT exempt rule?
View 1 Replies
View Related
Jun 4, 2013
we have a nat exemption rule for 10.0.0.0/8 to w.x.y.z followed by some static nat rules and then dynamic policy nat rule for 10.0.0.0/8 to w.x.y.z natting to IP a.b.c.d.When I do a packet trace from 10.10.10.10 to w.x.y.z, it shows the packet first matching against the nat exemption rule, and then immediately afterwards it matches the dynamic policy NAT rule. The static nat rules are being successfully bypassed (which is what I want), but why does the dynamic policy nat rule apply if an exempt rule has been hit already? An actual test between the IPs above reflects the result of the packet tracer as well (IP a.b.c.d is seen on server w.x.y.z).We are running the following software on an ASA5520.
View 7 Replies
View Related
Apr 16, 2013
I have configured the primary firewall every thing seem to be fine, And we have configured fail over device while config is getting replicated to the fail over device we are getting below error.
ERROR: Cannot add policy to rule engine
ERROR: Unable to assign access-list LAN_out to interface inside
IOS and Model are same.But all the config got replicated from primary to secondary but except the one access group command.
access-group LAN_out in interface inside.
View 7 Replies
View Related
Jul 3, 2011
After upgrading to 8.4(2) and ASDM 6.4(5) I seem to have an extra access rule duplicating an existing rule, this is only visable through the ASDM. When using the CLI you can't see this duplicate rule.
I therfore get the following warning everytime I make a config change using the ASDM [code] If I delete this rule it returns everytime I launch the ASDM!
I also have extra config under Firewall>Configuration>Public Servers that I didn't have before. If I delete it, again it returns.
View 8 Replies
View Related
Aug 7, 2011
I have seen similar questions but with not a lot of answers for the ASA platform. As the title states, What procedures can I use to copy a pre-existing configured CISCO ASA 5520 to a brand new CISCO ASA 5520. I have found a URL that seems to answer some questions but not all. [URL]
The URL talks more about the PIX's than the ASA
Is there any documentation or shorter procedures for product specific on the 5520?
View 1 Replies
View Related
Jan 25, 2012
I have 2 Cisco 5520 ASAs and was configured for Fail over. Unfortunately our Primary ASA went down and Secondary becomes Active and network admin made lots of changes on Secondary Active ASA. What is the best practice to rejoin Primary as standby or active without loosing the existing configuration on Secondary Active ?
View 6 Replies
View Related
Dec 20, 2011
I'm running into this issue on an ASA 5520 running version 8.2(2)9 and ASDM version 6.2(1).
I have an ACL denying traffic to a certain IP range and the logging level set to Debugging. The hit count is rising quite rapidly but when selecting "Show Log" the Real-Time Log Viewer opens with a value of 0x13d0ee2a in the "Filter By" field and no logs are ever shown.
Logging is enabled globally and Logging Filters on ASDM is set to Debugging as well.
how I can get the RTLV working?
View 7 Replies
View Related
Oct 4, 2012
Let's say I want to NAT 2.2.2.2 & 2.2.2.3 on wan interface to 192.168.1.1 on DMZ. I tried to add the static NAT with ASDM but got the following error:"The modified Static NAT Rule cannot be configured, as it overlaps with following existing rules"
View 1 Replies
View Related
Oct 9, 2011
I have been asked to look at upgrading two 5520 ASA configured in a HA pair Active/Standby, from version 7.2(4) to version 8.3(1) to bring it in line with some other ASA firewalls in the organisation.
My question is can I simply upgrade straight from 7.2(4) to 8.3(1) or will I have to step the upgrade from 7.2(4) => 8.2(x) => 8.3(1)
Having read a few articles on the forums and the release notes I think I should be able to go from 7.2(4) => 8.3(1) .
The second part of my query is around the upgrade itself, having researched this a little there seems to be various views on how to go about upgrading a HA pair and I cannot find anything specific on the website.
The approach I am thinking of is simply as follows;
- upload images onto both firewalls in the HA pair
- On the standby from the CLI
clear configure boot
[Code].....
View 3 Replies
View Related
May 24, 2011
I have the following Setup, Two Cisco ASA 5520 needed to be configured in HA Active/Passive. The Firewalls includes also AIP module. Does the ASA 5520 will internally make the AIP modules also HA Active/Passive? Is there a document regarding the issue? Is there a seperate license for the AIP modules for HA scenario?
View 1 Replies
View Related
Jan 18, 2011
what is the purpose of the "Permint all traffic to less secure networks".
Well I know the purpose and the technique to handle some sercurity level is nice. when I cannot add add a rule without deleting this implicit rule?
The technique of security level is then obsolete?
View 8 Replies
View Related
Jul 7, 2012
How to configure traffic flow between computers inside VLANs and a routed port? Here is the setup details:
1. Switch 3750-X
2. VLAN 100 - ( SVI IP address 192.168.100.1 /24)
3. VLAN 200 - ( SVI IP address 192.168.200.1 /24)
4. routed port gi1/0/48 (IP address 192.168.150.1 /24). Note: this port is directly connected to a firewall ASA 5520 port IP 192.168.150.100 /24
Ip routing is enabled on the switch and inter vlan traffic is flowing ok. I can ping the routed port gi1/0/48 from any computer connected in the VLAN 100 or 200. For example computer with IP 192.168.100.25 can ping the routed port 192.168.150.1. Switch can ping firewall port 192.168.150.100 and the 'sh ip route' command shows the network 192.168.150.0 /24 as directly connected network.
any computer in the two VLANs CANNOT ping firewall ASA port 192.168.150.100 Is it because inter VLAN routing does not work with a routed port on L3 switch? I looked up fallback bridging, but it is meant for non IP traffic.The goal is I am trying to set the ASA port as an internet gateway for VLANs.
View 4 Replies
View Related
Apr 8, 2012
I am a novice with networks but do have a fair understanding of networks. I have a small business network, utilizing a RVS4000 router (Firmware V2.0.27)I am attempting to set up firewall rules to block certain web sites at certain times.I have successfully set up rules using source and destination ranges, to deny service 24 hours a day everyday.
However and here is the problem when I attempt to edit any of the rules (I want to change the time to certain hours of the day) it allows me to edit the rule but when I attempt to save I get an error message up saying there are invalid characters and it will not save the changes?create the whole thing with the changes I want it works fine, is this a known bug?
View 1 Replies
View Related
Jan 1, 2012
I consider the NAT mechanism to be quite straight forward, but although the firewall ACLs allow the traffic, it is being denied. The ASDM log and packet-tracer indicate the problem being an ACL.
# the internal resource
object network mabe-mbp
host 10.0.0.36
!
# these are ALL of the rules on the outside/inside interfaces
access-list outside_access_in extended permit tcp host 1.2.3.90 any eq 12380 log disabled
access-list outside_access_out extended permit ip any any log
access-list inside_access_in extended permit ip any any log
access-list inside_access_out extended permit ip any any log (code)
View 2 Replies
View Related
Apr 1, 2013
I'm trying to troubleshoot an ASA5505.
The original goal was to block "Mumble/Murmur" (a voip app) traffic, which runs on TCP/UDP 64738, both inbound and outbound, except to a certain host (63.223.117.170).
However, when nothing I tried seemed to make a difference, just to troubleshoot, I decided to try blocking all inbound traffic. I first disconnected ethernet port 0/0 to ensure that it was cabled correctly and the outside interface went down when I did. That worked as expected, so I confirmed I had the right interface and it was cabled correctly.
I then applied a "any any deny ip" rule as the first element in the outside interface access_list, as you can see below. However, it appears to have had no real effect and the hit count is very low (it should be astronomical).
show ver
Cisco Adaptive Security Appliance Software Version 9.0(2)
Device Manager Version 7.1(2)
Compiled on Thu 21-Feb-13 13:10 by builders
System image file is "disk0:/asa902-k8.bin"
[Code].....
View 4 Replies
View Related
Jun 3, 2013
I have a server behind an rv042 that i would like to block access to on one port from outside in. I have configured the rule as follows:
priority = 1. policy name<name>. enable<checked>. action = deny. service <service to block>. source interface = wan1. sources = any. destination = <public ip address of server>. day <nothing>.
This does not block the intended port from outside. I also changed the destination to be the private ip address and i changed the source interface to LAN and to *. What is the correct syntax to do this?. Port forwarding is enabled. I noticed that there is one entry in the forwarding table for the public ip but it is going to a dead private ip address. Would this have an effect?
View 5 Replies
View Related
Oct 17, 2012
I think packet flow is changed in 8.3 IOS and above.We are using private NAT for ouside traffic.why we are using private IP for outside traffic?
View 1 Replies
View Related
Oct 6, 2011
I configured an ASA 5505 a couple of weeks ago. Every thing is working properly except it sends irritating messages to the syslog server. Her is an example of the message:
%ASA-2-106001: Inbound TCP connection denied from 195.215.221.56/80 to 10.70.13.90/252 flags PSH ACK on interface outside
%ASA-2-106001: Inbound TCP connection denied from 195.215.221.56/80 to 10.70.13.90/2252 flags ACK on interface outside.
View 1 Replies
View Related
Jan 14, 2013
I'm having problem getting ICMP echo monitoring on outside interface to work. I've set: icmp permit host monitoring_station_adress outside but I still get:
%ASA-3-313001: Denied ICMP type=8, code=0 from monitoring_station_adress on interface outside. I'm trying to directly monitor ip on ASAs interface outside.
I have access-group tied to "in" direction on interface outside. Do I still have to put "permit icmp" rules despite the fact that icmp permit outside command is set?
View 4 Replies
View Related
Feb 19, 2012
I have a website that is hosted by our company, but when the staff goes to the outside address of th website it gets denied by ACL thus page not found.
3Feb 20 201211:25:23192.168.3.5752928our Extrenal IP80TCP access denied by ACL from 192.168.3.57/52928 to inside: our External IP/80,OUr external ip is also the ip of the 5505.
View 1 Replies
View Related
Nov 8, 2012
How does one find the top user or IP accounting with this ASA5505 v7.22 device?
-With 1841 ISR:
-sh ip accounting
-sh ip flow top
Very lame if they don't have similar commands or capabilities on the ASA series.
View 1 Replies
View Related
Aug 30, 2012
I've been thinking about this for a while and I can't seem to find a comforting answer: Assume you have three datacenters connected over a WAN. Each datacenter has its own Internet and firewall, and each firewall has a trusted network, untrusted network (Internet), and DMZ: [code]
-DMZhostA has inbound access from the Internet over port X.
-DMZhostB has outbound access to DMZhostC over port Y.
-DMZhostC has outbound access to the trusted network over port Z.
If DMZhostA gets compromised from the Internet, the attacker can indirectly access the trusted network through DMZhostC, assuming the services running on the given ports are vulnerable/poorly secured.How do you track this web of access? This is a simple scenario with just three firewalls and datacenters, but it gets proportionally more complex and harder to track as the network gets larger. Manually tracking the traffic flow seems tedious, slow, and inefficient.
View 5 Replies
View Related
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.
View 5 Replies
View Related
Jun 24, 2012
I have 2 cisco routers that resired on the same interface on Cisco ASA. For security reasons, on both of the routers I have configured default gateway to be ASA interface, then static route between them on the ASA, I get the following error when on station comming from first router trying to connect to another station behind secound router (again, on the same interface, maybe this is the issue?).
ASA-3-106001: Inbound TCP connection denied from flags SYN
There is access list allowing traffic between but hit count is 0
View 4 Replies
View Related
Jun 13, 2012
I am fairly new to configuring ASA's. I have an ASA 5505 with one outside interface and three inside interfaces (inside1, inside2, and management). I need inside1 and inside2 to be able to talk to eachother but cannot work out how to make this happen. They are both configured to the same security level and the 'Enable traffic between interfaces with same security level' box is ticked. I have also tried adding appropriate NAT and Access rules. The packet tracer suggests the rules are correct for allowing traffic flow between interfaces but obviosly this may not be the case.
View 14 Replies
View Related
Mar 16, 2013
I am trying to troubleshoot a problem where in one of my remote site is not able to access some networks at HQ over Site to SIte VPN ( asa 5505 at Remote and 5520 at HQ). I ran packet tracer and HQ ASA looks clean as everything came out as ALLOW. Remote site ASA packet tracer give me DROP out at Phase 9 (VPN). I am not very sure what to look in ASA for resolution now. Is it an access list that is blocking the traffice or VPN setup.
View 5 Replies
View Related
Apr 9, 2012
I have a customer with a Cisco ASA 5510 firewall, an inside network containing a Genetec video recording server, and cameras installed on broadband modems throughout the area (each with a public IP). They've recently purchased Axis Q6034-E cameras that use H.264 to stream back to the video recording server. The camera has a view mode where you can watch it through H.264 or Motion JPEG. The view with M-JPEG works, but when I switch to H.264 the video stream is denied. We have allowed RTSP, RTP, and HTTP (it's setup with only http, not 443)traffic from the camera address on the cable company public network but are still being denied the video stream. The recording software requires that the feed come from the H.264 feed, so the motion jpeg does not fix the underlying issue of being able to record.
We know it's the firewall because if we install the camera on the inside network, the video feed in H.264 works to the recorder.
How to enable something special on the firewall to allow traffic through from the device?
View 1 Replies
View Related
Mar 21, 2013
I have three ASA5505, two firewalls connected to central VPN hub. the central inside network is 192.168.0.0/24,Network A is 192.168.1.0/24,Network B is 192.168.2.0/24,In one of this site (central), I have server with NetFlow collector.,I will collect the traffic information from all ASA at the my one serverCan I configure source IP address (or source interface - inside) for NetFlow packet, originate from ASA? (for example from site A)If it is not possible I think, I can rewrite my access lists and permit udp traffic from outside interface to server IP like this:access-list VPNACL permit udp host <Outside IP site A> host <Inside IP the Server> eq 9996,But I do not understand, what port I must be use in access list on Central site ASA. ,access-list VPNACL_A permit udp host <Inside IP the Server> host <Outside IP site A> eq 9996 ? or, in this place, must be source port in the udp netflow packet?
View 2 Replies
View Related
Oct 21, 2011
I am in search of a new routers. I don't have any special task to do. Just the flow of maximum 2mb/sec data and some times video conference. However I need the Voip solution as well. I just got excited on the cisco ASA 5505 product. Can this fulfill my requirements. Can this work as the router 1841. Does this support DMVPN, SSL VPN and dynamic routing. Can I upgrade the IOS for dynamic routing purpose. Do you recommend to purchase this produe act or not instead of router ? What are the limitations of this product. If I purchase this I can use this as an router as well as strong security solution. How many ports are available for traffic flow in ASA 5505. Are all routed mode or some of them switch port.
View 1 Replies
View Related
May 4, 2011
I am using ASA 5510 and I have a specific problem with Http Connection to receive a video Flow ( RSTP protocol ) in the LAN. Some Pc users (192.168.1.133,in the log) with ASA Lan Interface as gateway can ping the Camera but don't receveive the video flow.Some Pc users (192.168.1.116,in the log) using another gateway can ping and receive the video flow. I used Whireshark to capture traffic between camera and Pc using the 2 gateway. I joined Logs with this message.It seems to be a problem of TCP segments on the ASA, I try to changed some TCP options but it's still the same:- Disable Force Maximum Segment Size- Enable Force TCP Connection to Linger in TIME_WAIT State for at Least 15 Second.
View 7 Replies
View Related
Jul 27, 2011
I accidentally setup two schedule rules both with the name of "Log". When I highlight either rule, and try to delete either, I get error "The rule is being used by another rule and cannot be deleted" How do I delete?
View 1 Replies
View Related
