UDP traffic analyzed in L4 traffic monitor?
Dear all,
I just wonder if anyone knows whether UDP traffic is analyzed by the WSA's L4 traffic monitor?
It just tells "all ports" in the settings and reports also only reflect port numbers but no details like
which protocol (tcp/udp).
Anyone?
Best,
Hascha
UDP ports will not be blocked.
The L4TM will use the T1 interface to detect traffic to destinations that are on its blacklist. Once detected, the the data interface on the WSA will send a packet with the TCP reset flag to the client to prevent a TCP connection.
I have not tested this so someone correct me if I am wrong. I am answering this based on my understanding of the L4TM feature, and how it works. Since UDP is connectionless, there is no connection for it to kill.
Now this makes me wonder about the Monitor feature though. But I am almost certain it will not block if the action is set to block.
I'll check this out when I'm in the office and will get back to you.
-Vance
Similar Messages
-
Cisco WSA : no data found in L4 traffic monitor summary
Hello !
Does L4 traffic monitor only display rogue traffic ? Because, I made a packet capture on the T1 interface and i saw that there was a lot of traffic but in the overview, no data was found in the field "L4 Traffic Monitor Summary". Is it normal ? There is a screenshot in enclosed files.
Thank you,
Stephane WalkerUDP ports will not be blocked.
The L4TM will use the T1 interface to detect traffic to destinations that are on its blacklist. Once detected, the the data interface on the WSA will send a packet with the TCP reset flag to the client to prevent a TCP connection.
I have not tested this so someone correct me if I am wrong. I am answering this based on my understanding of the L4TM feature, and how it works. Since UDP is connectionless, there is no connection for it to kill.
Now this makes me wonder about the Monitor feature though. But I am almost certain it will not block if the action is set to block.
I'll check this out when I'm in the office and will get back to you.
-Vance -
I have a Cisco 4507 and would like to start monitoring traffic analysis and must admit Im a beginer so any information would be gratefully received
Hello,
you can use netflow traffic monitoring and analyzis. More information about netflow you can read on the cisco pages http://www.cisco.com/go/netflow or in the documentation of our software on the: http://www.caligare.com/netflow/download.php (section appendix 1). If you have more questions regarding netflow let me know...
Jan
Caligare Co.
http://www.caligare.com -
In the IronPort web security appliance documentation, it indicates that the L4 traffic monitor ports (T1 and/or T2) should be connected to either a network tap or switch span.
I'm a little confused as to how this is supposed to be set up.
Does it mean that you take 2 ports on a switch, one on the same subnet/vlan as the P1 interface (data) on the IronPort, and the other that is on the subnet/vlan as the firwall (outbound Internet traffic) and create 2 monitor sessions (spans)? If so, where are these sessions pointed to?
Isn't the IronPort supposed to be doing the tapping/inspection?
The whole external tap thing has me confused.Colin,
One way to think of it is that the WSA has 2 inspection engines that don't actually talk to one another...
1. the web proxy, where you're using WCCP to send specific traffic to
2. the L4TM engine that you send a spanned port to to catch all of the other weird stuff.
The web proxy does all of the user tracking/policy stuff, etc. Watching a specific set of ports.
The L4TM is intended for malware that might be running on your net... sort of like the Botnet Traffic filter that's available on ASA.
That said, you'll use 1 port for P1 on whatever vlan, redirection to that happens via WCCP or explicit proxy.
For the L4TM tap you can use 1 or 2 ports on the swtich, or none if you use an external tap. In the Network/Interfaces page, you set whether you want L4TM to use simplex or Duplex. If you use Duplex, just do a span session off the port the firewall is plugged into to the port that you connect T1 into...
If you use Simplex, you do 2 span sessions off of the port the firewall is connected to... ingress traffic on the port (eg. out of the firewall) to the port T1 is connected to, egress traffic on the port (eg. going to the firewall) spanned to the port T2 is hooked up to.
If you use an external tap, put it inline between the firewall and the switch, set the WSA for duplex and connect the "monitor" port to T1...
Hope that helps!
Ken -
WRT54GC v2.0 - UDP Traffic issue
Hi, i've bought last week the wireless router WRT54GC v2.0 and it works good for normal navigation, port forwarding, wireless signal, ecc...
I've only a problem, a big problem, it can't handle high UDP traffic, this issue can be experienced, e.g. with Kad network of eMule. I can connect to Kad and i'm not firewalled, but if i try to search something, the search results are always empty or almost empty. If i made the same search connecting with my ISP router it works fine.
I tried with both wireless and wired connection from WRT54GC and the result is the same, so it's not a wireless problem. I tried to disable firewall, playing with settings, using DMZ o port triggering. The result was the same. I've updated the firmware to version 1.01.0 too.
Is there a solution for this problem??
Sorry for my english
Message Edited by RedKite on 08-31-2008 02:39 AMI am not sure about the workwround ... however you can try filtering the UDP packets that are incoming .....
-
Need help in generating L4 Traffic monitor logs
Hi,
As a part of my project I need to study different types of logs produced by Cisco IronPort. I could generate some access and authentication logs however not sure about generating the L4 Traffic Monitor logs. Can anyone point me to right documentation that will help me generate those logs?
Thanks,
Harshad KashikarHarshad,
L4 Traffic Monitoring needs to be configured within the IronPort - first question is do you have a SPAN/TAP port set up on your switch to capture L4 traffic?
Second, I only use this feature to capture information on malware/spyware - I have seen P2P, IRC, and 'phone-home' traffic amongst other things. Do you have an infected host you can monitor?
BF -
L4 traffic monitor - blocking traffic ?
Hello
How does L4 traffic monitor is blocking traffic if T1/T2 ports are "tap/sniffed ports" ?
For SPAN we might have "ingress vlan feature" which would allow us to send TCP RST (like IPS does),
but for hardware TAP we do not have such a feature.
So - maybe L4 traffic monitor can not block any traffic, just make a decision what to block and execution is on WebProxy and P1/2 ports ?
ThanksMichael,
Yes, the reset is sent via P1
Ken
Sent from Cisco Technical Support iPad App -
Can an Ironport work in both WCCPv2 and L4 Traffic monitoring modes at the same time?
Hello Ciscoers,
We have an ironport installed and we use WCCPv2 to redirect the traffic. And as it occurs, I have a need to forward the traffic for another network, that uses another path to the Internet.
So I was thinking using the L4 Traffic Monitoring.
To the best of your knowledge, is there a way to have the appliance use both WCCPv2 and L4 Traffic monitoring at the same time? From the configuration, it's one or the other.
Thanks,
J.Ok. I'll try.
As a matter of fact, I plan to use policy-based routing to forward all the "interesting" traffic to the appliance.
For your TCP-Resets not seen, do you allow ingress on the span session?
J. -
Traffic monitoring for Coherence 3.1
The objective of our small project is to monitor the traffic on our coherence clusters. We also were trying to put the cache traffic as a object in the same cache name. The problem we encountered was during performance tests something happened to the coherence clusters and there appears to be some kind of lock not being released for others which made all the weblogic cluster go down. Weblogic went down with "too many open files". We have thread dumps which I can send if you guys need it nevertheless I have attached a part which I suspect is the reason.
Heres the Code that was trying to do the monitoring. The doPut Servlet method does the put , after the put it calls a method RegisterTraffic which has a small logic to increment the count & put back into the cache. It has a Lock for the particular "Traffic" key.
* The Servlets doPut method - Handles the Cache Put Requests
* @param HttpServletRequest request, HttpServletResponse response
* @return void
* @throws CacheException
public void doPut(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
ServletOutputStream out = response.getOutputStream();
String value = "";
try {
String id = request.getPathInfo();
String expires = request.getHeader("Expires");
String contentType = request.getContentType();
String app_name = request.getHeader("App-Name");
int contentLength = request.getContentLength();
if (contentLength > 0) {
byte valueArray[] = new byte[contentLength];
ServletInputStream in = request.getInputStream();
int bytesRead = 0;
int offset = 0;
while (bytesRead > -1) {
bytesRead =
in.read(valueArray, offset, valueArray.length - offset);
offset += bytesRead;
if (offset == contentLength) {
break;
DataObject myValue = new DataObject();
myValue.setByte(valueArray);
myValue.setExpirationTime((Long.parseLong(expires))*1000);
Cache_Manager.put(id, myValue);
response.setContentType("application/octet-stream");
value = "ID "+id+" Stored";
out.write(value.getBytes());
out.flush();
RegisterTraffic(app_name,"PUT");
} catch (Exception ex) {
response.setContentType("application/octet-stream");
value = "CACHE_ERROR:"+ErrorCode.INTERNAL_PROBLEM_CODE+":"+"doPut:"+ErrorCode.INTERNAL_PROBLEM_MSG;
response.setContentLength(value.length());
out.write(value.getBytes());
throw new ServletException(value+"\n"+ex.getMessage());
* The Servlets Traffic Monitor method - Handles the Traffic monitoring
* @param appname, get or put or clear
* @return void
* @throws CacheException
public void RegisterTraffic(String appName, String action) {
String trafficKey = "Traffic";
try {
HashMap hmTotal = new HashMap();
HashMap hmToday = new HashMap();
Object obj = null;
HIDataObject dObj = null;
String today = (new java.util.Date().toString()).substring(0,3);
//String today = "SAT";
Long totalTrafficCount = new Long(1);
Long todayTrafficCount = new Long(1);
long totalCnt = 0;
long todayCnt = 0;
// Lock the Object.
Cache_Manager.lock(trafficKey,-1);
try{
dObj = (HIDataObject)Cache_Manager.get(trafficKey);
} catch(java.lang.NullPointerException nex) {
// If this Exception then we are doing it for the first time.
// Ignore this exception
} catch(Exception exe) {
CacheLog.error("CACHE_ERROR: RegisterTraffic Failed with Following Exception\n"+exe.getMessage());
if (dObj != null) {
hmTotal = dObj.getTotalTrafficHashMap();
hmToday = dObj.getTodayTrafficHashMap();
// HashMap.get will throw error for the first time , so initialize to 1.
try{
totalTrafficCount = (Long)hmTotal.get(appName+"-"+action);
} catch(java.lang.NullPointerException nex) {
CacheLog.error("CACHE_ERROR: RegisterTraffic Failed with Following Exception\n"+nex.getMessage());
try{
todayTrafficCount = (Long)hmToday.get(today+"-"+appName+"-"+action);
} catch(java.lang.NullPointerException nex) {
CacheLog.error("CACHE_ERROR: RegisterTraffic Failed with Following Exception\n"+nex.getMessage());
try{
totalCnt = totalTrafficCount.longValue();
todayCnt = todayTrafficCount.longValue();
} catch (Exception e) {
// Increase the counn here
totalCnt++;todayCnt++;
hmTotal.put(appName+"-"+action,new Long(totalCnt));
hmToday.put(today+"-"+appName+"-"+action,new Long(todayCnt));
try{
HIDataObject myValue = new HIDataObject();
myValue.setTotalTrafficHashMap(hmTotal);
myValue.setTodayTrafficHashMap(hmToday);
myValue.setExpirationTime(86400000);
Cache_Manager.put(trafficKey, myValue);
} catch (Exception exe){
CacheLog.error("CACHE_ERROR: RegisterTraffic Failed with Following Exception\n"+exe.getMessage());
} catch (Exception ex) {
CacheLog.error("CACHE_ERROR: RegisterTraffic Failed with Following Exception\n"+ex.getMessage());
} finally {
Cache_Manager.unlock(trafficKey);
Weblogic Thread Dumps
"TcpRingListener" id=76 idx=0x96 tid=19164 prio=6 alive, in native, daemon
at java/net/PlainSocketImpl.socketAccept(Ljava/net/SocketImpl;)V(Native Method)
at java/net/PlainSocketImpl.accept(Ljava/net/SocketImpl;)V(PlainSocketImpl.java:353)
^-- Holding lock: java/net/PlainSocketImpl@0xc5f4238[thin lock]
at java/net/ServerSocket.implAccept(Ljava/net/Socket;)V(ServerSocket.java:448)
at java/net/ServerSocket.accept()Ljava/net/Socket;(ServerSocket.java:419)
at com/tangosol/coherence/component/net/socket/TcpSocketAccepter.accept()Lcom/tangosol/coherence/component/net/socket/TcpSocket;(TcpSocketAccepter.CDB:17)
at com/tangosol/coherence/component/util/daemon/TcpRingListener.acceptConnection()V(TcpRingListener.CDB:9)
at com/tangosol/coherence/component/util/daemon/TcpRingListener.onNotify()V(TcpRingListener.CDB:1)
at com/tangosol/coherence/component/util/Daemon.run()V(Daemon.CDB:34)
at java/lang/Thread.run()V(Unknown Source)
at jrockit/vm/RNI.c2java(IIII)V(Native Method)
-- end of trace
"DistributedCache" id=78 idx=0x98 tid=19165 prio=5 alive, in native, waiting, daemon
-- Waiting for notification on: com/tangosol/coherence/component/util/daemon/QueueProcessor$Queue@0xc5c6998[fat lock]
at jrockit/vm/Threads.waitForSignal(J)Z(Native Method)
at java/lang/Object.wait(J)V(Native Method)[optimized]
at com/tangosol/coherence/component/util/Daemon.onWait()V(Daemon.CDB:9)[optimized]
^-- Lock released while waiting: com/tangosol/coherence/component/util/daemon/QueueProcessor$Queue@0xc5c6998[fat lock]
at com/tangosol/coherence/component/util/Daemon.run()V(Daemon.CDB:31)
at java/lang/Thread.run()V(Unknown Source)
at jrockit/vm/RNI.c2java(IIII)V(Native Method)
-- end of trace
"ListenThread.Default" id=79 idx=0x9a tid=19166 prio=5 alive, in native
at java/net/PlainSocketImpl.socketAccept(Ljava/net/SocketImpl;)V(Native Method)
at java/net/PlainSocketImpl.accept(Ljava/net/SocketImpl;)V(PlainSocketImpl.java:353)
^-- Holding lock: java/net/PlainSocketImpl@0x1729efc8[thin lock]
at java/net/ServerSocket.implAccept(Ljava/net/Socket;)V(ServerSocket.java:448)
at java/net/ServerSocket.accept()Ljava/net/Socket;(ServerSocket.java:419)
at weblogic/socket/WeblogicServerSocket.accept()Ljava/net/Socket;(WeblogicServerSocket.java:26)
at weblogic/t3/srvr/ListenThread.accept()Ljava/net/Socket;(ListenThread.java:735)
at weblogic/t3/srvr/ListenThread.run()V(ListenThread.java:301)
at jrockit/vm/RNI.c2java(IIII)V(Native Method)
-- end of trace
Blocked lock chains
===================
Chain 2:
"ExecuteThread: '2' for queue: 'weblogic.socket.Muxer'" id=53 idx=0x70 tid=18903 waiting for java/lang/String@0x102fb4d8 held by:
"ExecuteThread: '1' for queue: 'weblogic.socket.Muxer'" id=52 idx=0x6e tid=18902 in chain 1
Coherence Thread Dumps
"PacketPublisher" id=21 idx=0x32 tid=20248 prio=6 alive, in native, waiting, daemon
at jrockit/vm/Threads.waitForSignal(J)Z(Native Method)
at java/lang/Object.wait(J)V(Native Method)
at com/tangosol/coherence/component/util/Daemon.onWait()V(Daemon.CDB:9)
^-- Lock released while waiting: com/tangosol/coherence/component/net/Cluster$PacketPublisher$Queue@0xcb36648[fat lock]
at com/tangosol/coherence/component/util/Daemon.run()V(Daemon.CDB:31)
at java/lang/Thread.run()V(Unknown Source)
at jrockit/vm/RNI.c2java(IIII)V(Native Method)
-- end of trace
"Cluster" id=22 idx=0x34 tid=20249 prio=5 alive, in native, waiting, daemon
-- Waiting for notification on: com/tangosol/coherence/component/net/Cluster$ClusterService$Queue@0xcb30190[fat lock]
at jrockit/vm/Threads.waitForSignal(J)Z(Native Method)
at java/lang/Object.wait(J)V(Native Method)
at com/tangosol/coherence/component/util/Daemon.onWait()V(Daemon.CDB:9)
^-- Lock released while waiting: com/tangosol/coherence/component/net/Cluster$ClusterService$Queue@0xcb30190[fat lock]
at com/tangosol/coherence/component/util/Daemon.run()V(Daemon.CDB:31)
at java/lang/Thread.run()V(Unknown Source)
at jrockit/vm/RNI.c2java(IIII)V(Native Method)
-- end of trace
"PO Async Executor" id=27 idx=0x36 tid=20436 prio=5 alive, in native, waiting, daemon
-- Waiting for notification on: java/lang/Object@0xa7573d8[fat lock]
at jrockit/vm/Threads.waitForSignal(J)Z(Native Method)
at jrockit/vm/Locks.wait(Ljava/lang/Object;J)V(Unknown Source)
at java/lang/Object.wait()V(Native Method)
at com/wily/EDU/oswego/cs/dl/util/concurrent/BoundedLinkedQueue.take()Ljava/lang/Object;(BoundedLinkedQueue.java:225)
^-- Lock released while waiting: java/lang/Object@0xa7573d8[fat lock]
at com/wily/EDU/oswego/cs/dl/util/concurrent/QueuedExecutor$RunLoop.run()V(QueuedExecutor.java:82)
at java/lang/Thread.run()V(Unknown Source)
at jrockit/vm/RNI.c2java(IIII)V(Native Method)
-- end of trace
"TcpRingListener" id=24 idx=0x38 tid=20252 prio=6 alive, in native, daemon
at java/net/PlainSocketImpl.socketAccept(Ljava/net/SocketImpl;)V(Native Method)
at java/net/PlainSocketImpl.accept(Ljava/net/SocketImpl;)V(PlainSocketImpl.java:353)
^-- Holding lock: java/net/PlainSocketImpl@0xd441530[thin lock]
at java/net/ServerSocket.implAccept(Ljava/net/Socket;)V(ServerSocket.java:448)
at java/net/ServerSocket.accept()Ljava/net/Socket;(ServerSocket.java:419)
at com/tangosol/coherence/component/net/socket/TcpSocketAccepter.accept()Lcom/tangosol/coherence/component/net/socket/TcpSocket;(TcpSocketAccepter.CDB:17)
at com/tangosol/coherence/component/util/daemon/TcpRingListener.acceptConnection()V(TcpRingListener.CDB:9)
at com/tangosol/coherence/component/util/daemon/TcpRingListener.onNotify()V(TcpRingListener.CDB:1)
at com/tangosol/coherence/component/util/Daemon.run()V(Daemon.CDB:34)
at java/lang/Thread.run()V(Unknown Source)
at jrockit/vm/RNI.c2java(IIII)V(Native Method)Hi user638596.
Frankly, there is not enough information to go by. The code you pointed to is definitely not "bullet proof". First, after the lock has been acquired, it only catches Exceptions, so any Errors (e.g. OutOfMemoryError) would "leak" a lock. In general, the locking-protected code should look like (in pseudo-code):
lock();
try
operations();
finally
unlock();
}However, without seeing the log files and entire thread dump, it's impossible to figure out a real reason. I'd suggest you to submit those to our support at Oracle Metalink.
Regards,
Gene -
[Request] NTM - Network Traffic Monitor
Hi to everyone:
Could anyone package this?: NTM - Network Traffic Monitor
NTM is a monitor of the network and internet traffic for GNU/Linux. Some characteristics:
* Choice of the interface to monitoring.
* Period to monitoring: Day, Week, Month, Year or Custom Days. With autoupdate.
* Threshold: Autodisconnection if a limit is reached (by NetworkManager).
* Traffic Monitoring: Inbound, outbount and total traffic; Show the traffic speed.
* Time Monitoring: Total time of connections in the period.
* Time Slot Monitoring: Number of sessions used.
* Reports: Show of average values and daily traffic of a configurable period.
* Online checking with NetworkManager or by "Ping Mode".
* The traffic is attributed to the day when the session began.
* Not need root privilege.
* Not invasive, use a system try icon.
NTM is useful for the people that have a internet plan with a limit, and moreover the exceed traffic is expensive.
NTM is write in python and is a open source software, the license is the GNU GPL v2.
A lot of thanks.#Maintairner: Brieuc Roblin <brieuc.roblin at gmail dot com>
pkgname='ntm'
pkgver='1.2.2'
pkgrel='1'
pkgdesc="Monitor of the network and internet traffic"
arch=('i686' 'x86_64')
license=('GPL')
depends=('pywebkitgtk' 'lsb-release' 'networkmanager')
makedepends=('dpkg')
url=('http://netramon.sourceforge.net/eng/index.html')
source=('http://freefr.dl.sourceforge.net/project/netramon/NTM/ntm-1.x/ntm-1.2.2.deb')
md5sums=('ec438b8c952ac866ffdaa57538d189b7')
build() {
cd "$srcdir"
# Extracting deb
msg2 "Extracting .deb ..."
dpkg-deb -x ntm-*.deb deb
cd "deb"
# Installing
msg2 "Installing..."
cp -r . "$pkgdir"/
I can't really test the program as I'm not using NetworkManager.
Last edited by PyrO_70 (2010-08-20 19:18:24) -
Doesn't Managed Server's sip channel support udp traffic by default ?
Hi All,
I am new to the WebLogic Server. I have tried to set up a Managed Server via an AdminConsole of BEA WebLogic 9.2.
My configurations in config.xml are as shown below. In the AdminConsole, I could startup the Managed Server successfully. However, when I generated a SIP message (to the listening port of Managed Server, which is 5068) using sipp, the Managed Server could not receive the sip message.
When, I used "netstat -a" to check listening ports. It showed that the Managed Server (Server-5) listened on tcp port 5068 but NOT on udp port 5068. And, since my sipp generated a sip message to udp port 5068, the Managed Server could not obtain the sip message.
I read the online document and it states that when a channel is created for a server, it will automatically support both tcp and udp traffic. Therefore, from my understanding, the Managed Server should automatically listen on both udp and tcp port when it starts up. In fact, I have checked that my Admin Server listens on both udp port and tcp port (in this case, port 5060).
I doubt that I may miss something in the configuration of the Managed Server. I woud be appreciated if someone could enlighten me up.
Kind Regards,
Kirati
<server>
<name>Server-5</name>
<machine>Machine-0</machine>
<listen-port>7007</listen-port>
<web-server>
<web-server-log>
<number-of-files-limited>false</number-of-files-limited>
</web-server-log>
</web-server>
<listen-address>10.252.8.241</listen-address>
<network-access-point>
<name>Channel-8</name>
<protocol>sip</protocol>
<listen-address>10.252.8.241</listen-address>
<public-address>10.252.8.241</public-address>
<listen-port>5068</listen-port>
<public-port>5068</public-port>
<http-enabled-for-this-protocol>false</http-enabled-for-this-protocol>
<tunneling-enabled>false</tunneling-enabled>
<outbound-enabled>true</outbound-enabled>
<enabled>true</enabled>
<two-way-ssl-enabled>false</two-way-ssl-enabled>
<client-certificate-enforced>false</client-certificate-enforced>
</network-access-point>
</server>
Edited by: user10871458 on Jan 30, 2009 1:17 AMI have found an answer to my question.
I simply forgot to load a sip-container service to my new created server.. -
Outside-PAT all UDP traffic, but exclude DNS
8.4(3)
I need to outside PAT all incoming UDP (SIP/RTP) traffic from outside to an internal IP. The following command makes it work:
nat (outside,inside) source dynamic any obj-10.0.0.173 service udp udp
But it breaks DNS resolution from inside. If I add the above command and try to nslookup from inside to an outside DNS server
64.90.175.90, DNS times out. If I remove the above nat command, it works again. It seems like even though DNS UDP originates from inside which should create a statefull connection, ASA still messes with return DNS responses.
I then tried to create an "exclusion" for that IP with the following:
object-group network nat-exclusions
network-object host 64.90.175.90
nat (outside,inside) source static nat-exclusions nat-exclusions
but it's not working.
I also tried:
nat (outside,inside) source static nat-exclusions nat-exclusions unidirectional
Also not working.
Any suggestions? How can outside-PAT all UDP traffic excluding DNS.TAC was able to help. I needed this:
object network exclusions
host 64.90.175.90
nat (inside,outside) source dynamic any interface destination static exclusions exclusions
nat (outside,inside) source dynamic any obj-10.0.0.173 service udp udp -
24 Hr Network Traffic Monitoring
Hi Markus,
I got this 24-hour Network traffic monitoring output using the program you gave me ;)
I run every hour this > ./network-traffic.sh -c 1
It will give me 1 line output like this,
Monitoring eth0 every 3 seconds. (RXbyte total = 1 Gb TXbytes total = 2 Gb)
RXbytes = 58 Kb TXbytes = 51 Kband I call this program every hour via cron, to produce and output like this:
27-Oct-2010 00:00:07 RXbytes = 10 Kb TXbytes = 9 Kb
27-Oct-2010 01:00:07 RXbytes = 11 Kb TXbytes = 9 Kb
27-Oct-2010 02:00:07 RXbytes = 7 Kb TXbytes = 6 Kb
27-Oct-2010 03:00:07 RXbytes = 48 Kb TXbytes = 42 Kb
27-Oct-2010 04:00:07 RXbytes = 448 b TXbytes = 0 b
27-Oct-2010 05:00:08 RXbytes = 128 b TXbytes = 0 b
27-Oct-2010 06:00:07 RXbytes = 128 b TXbytes = 0 b
27-Oct-2010 07:00:08 RXbytes = 256 b TXbytes = 0 b
27-Oct-2010 08:00:08 RXbytes = 14 Kb TXbytes = 24 Kb
27-Oct-2010 09:00:07 RXbytes = 11 Kb TXbytes = 10 Kb
27-Oct-2010 10:00:08 RXbytes = 11 Kb TXbytes = 10 Kb
27-Oct-2010 11:00:07 RXbytes = 48 Kb TXbytes = 85 Kb
27-Oct-2010 12:00:08 RXbytes = 9 Kb TXbytes = 8 Kb
27-Oct-2010 13:00:07 RXbytes = 13 Kb TXbytes = 28 Kb
27-Oct-2010 14:00:08 RXbytes = 53 Kb TXbytes = 46 Kb
27-Oct-2010 15:00:08 RXbytes = 13 Kb TXbytes = 20 Kb
27-Oct-2010 16:00:08 RXbytes = 13 Kb TXbytes = 20 Kb
27-Oct-2010 17:00:08 RXbytes = 40 Kb TXbytes = 94 Kb
27-Oct-2010 18:00:07 RXbytes = 13 Kb TXbytes = 30 Kb
27-Oct-2010 19:00:08 RXbytes = 6 Kb TXbytes = 9 Kb
27-Oct-2010 20:00:08 RXbytes = 12 Kb TXbytes = 12 Kb
27-Oct-2010 21:00:08 RXbytes = 15 Kb TXbytes = 40 Kb
27-Oct-2010 22:00:07 RXbytes = 9 Kb TXbytes = 11 Kb
27-Oct-2010 23:00:07 RXbytes = 11 Kb TXbytes = 9 KbIs this output data gathering style valid?
I want to give this report to my boss using spreadsheets, but I want to put comments like :
1. at what hour is the network busiest?
2. at what hour is the network the not-busiest?
How do I sort this output from busiest (descending order)?
Thanks a lot,
Ms KHi again markie,
This is my actual source code of eth0stat.sh:
# File: eth0stat.sh
# Purpose: Gather network traffic increase between readings
# Command: . ./eth0stat.sh
ifcmd='/sbin/ifconfig eth0'
timestamp=$(date "+%D %T")
logfile=/u01/Monitor/eth0stat.txt
old_rxbytes=$RXBYTES
old_txbytes=$TXBYTES
get_rxbytes() {
$ifcmd | grep "RX bytes" | cut -d: -f2 | awk '{ print $1 }'
get_txbytes() {
$ifcmd | grep "TX bytes" | cut -d: -f3 | awk '{ print $1 }'
RXBYTES=$(get_rxbytes); export RXBYTES
TXBYTES=$(get_txbytes); export TXBYTES
if [ $old_rxbytes > 0 ]; then
diff_rxbytes=$(($RXBYTES - $old_rxbytes))
else
diff_rxbytes=0
fi
if [ $old_txbytes > 0 ]; then
diff_txbytes=$(($TXBYTES - $old_txbytes))
else
diff_txbytes=0
fi
echo "$timestamp,RXbytes:$diff_rxbytes,TXbytes:$diff_txbytes" >> $logfileI created the new program you gave me (eth0stat.sh) and called it from cron every our, but I got this result:
11/01/10 15:00:07,RXbytes:0,TXbytes:0
11/01/10 16:00:07,RXbytes:0,TXbytes:0
11/01/10 17:00:07,RXbytes:0,TXbytes:0
11/01/10 18:00:07,RXbytes:0,TXbytes:0
11/01/10 19:00:07,RXbytes:0,TXbytes:0
11/01/10 20:00:07,RXbytes:0,TXbytes:0
11/01/10 21:00:07,RXbytes:0,TXbytes:0
11/01/10 22:00:08,RXbytes:0,TXbytes:0
11/01/10 23:00:07,RXbytes:0,TXbytes:0
11/02/10 00:00:07,RXbytes:0,TXbytes:0
11/02/10 01:00:08,RXbytes:0,TXbytes:0
11/02/10 02:00:08,RXbytes:0,TXbytes:0
11/02/10 03:00:07,RXbytes:0,TXbytes:0
11/02/10 04:00:07,RXbytes:0,TXbytes:0
11/02/10 05:00:07,RXbytes:0,TXbytes:0
11/02/10 06:00:08,RXbytes:0,TXbytes:0
11/02/10 07:00:08,RXbytes:0,TXbytes:0
11/02/10 08:00:07,RXbytes:0,TXbytes:0
11/02/10 09:00:08,RXbytes:0,TXbytes:0
11/02/10 10:00:08,RXbytes:0,TXbytes:0The output has all 0 bytes :( . Is there something I missed out?
I compared it to the other one I got:
1-Nov-2010 15:00:07 RXbytes = 10 Kb TXbytes = 9 Kb
1-Nov-2010 16:00:07 RXbytes = 10 Kb TXbytes = 9 Kb
1-Nov-2010 17:00:07 RXbytes = 10 Kb TXbytes = 9 Kb
1-Nov-2010 18:00:07 RXbytes = 10 Kb TXbytes = 9 Kb
1-Nov-2010 19:00:07 RXbytes = 10 Kb TXbytes = 9 Kb
1-Nov-2010 20:00:07 RXbytes = 10 Kb TXbytes = 9 Kb
1-Nov-2010 21:00:07 RXbytes = 10 Kb TXbytes = 9 Kb
1-Nov-2010 22:00:08 RXbytes = 10 Kb TXbytes = 9 Kb
1-Nov-2010 23:00:07 RXbytes = 11 Kb TXbytes = 9 Kb
2-Nov-2010 00:00:07 RXbytes = 10 Kb TXbytes = 9 Kb
2-Nov-2010 01:00:08 RXbytes = 10 Kb TXbytes = 9 Kb
2-Nov-2010 02:00:08 RXbytes = 10 Kb TXbytes = 9 Kb
2-Nov-2010 03:00:07 RXbytes = 7 Kb TXbytes = 6 Kb
2-Nov-2010 04:00:07 RXbytes = 256 b TXbytes = 0 b
2-Nov-2010 05:00:07 RXbytes = 320 b TXbytes = 0 b
2-Nov-2010 06:00:08 RXbytes = 0 b TXbytes = 0 b
2-Nov-2010 07:00:08 RXbytes = 466 b TXbytes = 0 b
2-Nov-2010 08:00:07 RXbytes = 1 Mb TXbytes = 19 Mb
2-Nov-2010 09:00:08 RXbytes = 1 Mb TXbytes = 22 Mb
2-Nov-2010 10:00:08 RXbytes = 12 Kb TXbytes = 91 KbThe is seem to be movement starting at 8am Nov 2, 2010.
Please help me debug the eth0stat.sh.
Thanks again so much -
I am having a problem with the WISM blade blocking UDP traffic on port 6001. This is for a Sentinel Hardware Key. The software sends out a UDP request but it appears that the controller just drops it. I have tried an explicit permit ACL on this network for all UDP traffic. This did not work either. This software work fine on the wire. Anyone else seen this?
All layer two broadcasts (FF:FF:FF:FF:FF:FF) are stopped at the WISM. This is a function of the controller. I found a white paper from Cisco stating this. The hardware key I was trying to use, utilized a layer two broadcast and it was stopped at the controller. There were no ACL's present when I started testing. I even tried it with an allow all ACL just to make sure.
-
Routing non-TCP/UDP traffic while using FWLB on CSS 11503s
Hello all,
I've been tasked to setup up FWLB with CSS 11503's as shown below. The issue is that intranet workstations use VPN client software when connecting to certain sites through the Internet and other times they use http or https (for connection to different sites). Because no flow is setup for ipsec and ECMP uses per packet routing for non TCP/UDP traffic, I'm concerned that load balancing through the firewalls will occur on a per packet basis. If that is true, stateful inspection in the firewalls will block asymmetrical traffic flows.
Is my understanding correct? And, if so, is there a way to configure the CSS units to deal with this?
Thanks in advance.
(sorry for the dots in the drawing but the spaces kept getting deleted)
.| Internet |
..........|
.| CSS-outside |
.............|
........|...............|
.| FW1 |.....| FW2 |
.......|................|
............|
.| CSS-inside |
............|
.| Intranet |for non-flowy traffic like IPSEC, we use a hash algorithm to decide where to send the traffic.
So, it's not per packet loadbalancing.
The same source/destination ip/port will always go to the same firewall.
Gilles.
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