L2TP/PPP Traffic Generator

I need to generate 2000+ L2TP Sessions to a Cisco Router for testing purpose. Does anybody have any ideas of what product can be used to gererate this traffic.

I have used iPerf for similar type testing:
http://sourceforge.net/projects/iperf/

Similar Messages

Very high data traffic generated by Nokia Messagin...

Is anyone else seeing really high data use on their phone log following last week's Messaging outage?
Up until last week's outage, the data traffic generated by Messaging was about 5kb an hour (with no new emails sent or received). Presumably this small amount of data traffic results from the Nokia email server "pinging" the phone periodically to keep the connection open.
But after last week's outage and issues with passwords being requested etc etc, I saw that the data traffic generated by the Messaging app has gone through the roof - about 400 - 500kb an hour! Again, this is with no new emails sent or received - so theoretically is just the server pinging the phone to keep the idle connection open!
I reinstalled Nokia Messaging on my phone (E61i) - no difference - the data generated by the Messaging app is still 400 - 500 kb an hour (it stops when I take Messaging offline).
I have friends roaming in Ireland and their phone has had the same problem - the data traffic generated by their Messaging app is sky high and they have had to shut it down because of the high cost of data whilst roaming.
I also newly installed Messaging on another phone (N95) that I have, using a brand new email account and a new T-mobile SIM card, and guess what - that phone also has sky high data traffic due to Messaging.
What is going on?? Can someone at Nokia Messaging please sort this out? Anyone roaming with Nokia Messaging enabled is facing hugh data charges from their network.

The data traffic occurs in phones which are on a home network (mine in the UK) and on a roaming network (my friends traveling in Ireland). Interestingly, I've now checked with another friend who is roaming in Italy and they also use Messaging but haven't seen any high packet data issues with their phone.
The data traffic shows up in the Packet Log, as well as on the actual T-Mobile network account (plus the charges for the data!) Accessing a T-Mobile UK account online shows all packet data use - in this case, 120-150 kb every 15 minutes, whereas before last week it was 1-2kb every 15 minutes.
When I "Go Offline" with Nokia Messaging, the high data traffic stops, both on the Packet Log and network account, so I am 100% certain this is due to Messaging.

Re: How to disable MIG 7 Traffic Generator in simulation

Hi Everyone,
I was wondering how can I disable vivado traffic generator in simulation?
I have fine tune my DDR channel and need to disable traffic generator for simulation purposes, however, I don't see any option in MIG7 GUI interface, or any parameter that I can pass to traffic generator from my top level simulaion file to stop traffic generator for issuing command and putting random rd/wr data on my DDR bus.
Any idea?
Thanks,
Mike

Hi,
If you generate the IP alone there will not any tarffic gen, only example design comes with tarffic gen(right click on .xci and choose example design)
So while generating the IP there is no GUI option to disable traffci gen.
But if you attempt to link user deisgn top with memory model then you have to be ultimately careful in passign the parameters and mapping the signals
instead if you are running MIG example design simulation but wanted to drive your own tarffic, you can simply commet out tarffic gen in example_top and have your own fsm for driving the MIG user intefrace.
Hope this helps
-Vanitha

Traffic Generator with Statistical Capability

I am looking for a traffic generator that I can use to simulate Video traffic (Qos, Packet Size, Continuous Streaming, etc.)
across the network. IP SLA UDP jitter is close but it is not a continuous stream and from viewing the documentation I'm not sure
the timeouts and frequency can be adjusted to give a continuous stream. So does anyone know of a traffic generator (software based)
that I can load on two laptops where on is the source and the other the receiver where I can pull statisitcs for latency, jitter, and lost packets?
Thanks for your help...

I have used iPerf for similar type testing:
http://sourceforge.net/projects/iperf/

VPN Settings Server Admin L2TP PPP Authentication Kereberos option dimmed?

Hi. I set up my 10.4 server as an open directory master. Kerberos works on the LAN for single signon.
I am trying to configure VPN service now. When I go to the "Settings" section of VPN in Server Admin, under L2TP, "PPP Authentication", MS-CHAPv2 is selectable but "Kerberos" is dimmed, i.e. I can't select it. What do I need to do to be able to used Kerberos here?
Thanks,

Thanks BrianFL. This helps hugely. Yes, I just to set up a simple filesharing VPN not the kind of VPN that bypass Internet censorship. I use ethernet connection directly from my router yes.
1. I just need to use the server app to set up a VPN and port forwarding. That is it?
2. The setting I have made according to the guide with Server Admin Tools seems never going away, even after I deleted the server that has all the settings inside Server Admin Tools. Upon creating a new server inside Server Admin Tools, the new server inherits all the settings from the one I just deleted. Any idea how I can restore to Server Admin Tools's defaults settings?
3. Even VNC (I use RealVNC) on the mini stopped working after I made changes according to the guide and deleted all the changes I can find. What is the address format for lion's build in VNC (192.168.0.100:5800?) like? I forgot how it is.
Thanks so much!

QoS Marking Traffic Generated by Network Device

I am working on defining QoS configuration standards for Catalyst 3750, 4500 and 6500 platforms. I would like to provide preferred treatment to some of the protocols commonly used for network management (i.e. telnet, ssh, etc...). I have no issues with classifying and marking traffic generated by a NMS or PC connected to a switch but I can not figure out how to classify and mark traffic generated by the switch itself. It won't do any good if traffic from the NMS or PC to the device is preferred but the response from the device is unmarked/best effort.
The only way that I can see to do this is to apply an input policy on the upstream device to classify and mark the network management traffic. I would prefer to do it on the device itself. Does anyone know if that is possible?
I'm assuming that any traffic generated by the switch would be ignored by an output policy, similar to the way that traffic generated by the device will by-pass access-lists. Even if this is a bad assumption the 3750 does not support output policies, so I'd still be stuck there.
It was suggested that I look into applying the policy to the control plane however on the platforms that options is available, policies can only be applied to the input. Which I believe is the wrong direction.
Anyone have other suggestions on how to accomplish this or is this a lost cause?

You can use local PBR to do this. Check out the local policy-map
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_c/fqcprt1/qcfpbr.htm#wp1001002

Network Traffic Generator

Hi all
Could anyone suggest me a good Network Traffic Generator software (Free ofcourse or cheap ones) in windows platform? I am trying to setup a network where I can test and analyse the issues with VoIP packets under heavy traffic conditions. Please suggest!! I am struggling to find one. Thanks.

Hi ADITYA
Can you find the below?.
1- For traffic generation Windows is pretty bad, especially UDP traffic at any decent rates.
2-I would recommend the IP SLA feature in IOS to simulate VoIP and the statistics it generates are very good.
http://www.cisco.com/en/US/docs/ios/12_4t/12_4t4/htrtpvip.html
3- You can also check the following also :
https://www.netiq.com/products/unified-communications-and-voip-management/features/vivinet-assessor.html
Thanks
please rate all useful information

ACLs never apply to traffic generated by the router

http://www.ciscopress.com/articles/article.asp?p=174313&seqNum=4&rl=1
"Another special note on Cisco ACLs is that ACLs never apply to traffic generated by the router. So, even if you have an inbound and an outbound ACL on a router denying all traffic, the router will still be able to send any packet it wants; the return packet, however, will be blocked as usual".
Is it (the return packet, however, will be blocked as usual) the case all the time ? if it is the case could you please explain ?

Thanks Rick,,,I need some clarification about the below scenario please:
suppose I have got R1 (one of many routers) with two interfaces serial0/0 and e0/0,,,the ip address for serial0/0 192.168.0.1/24
the ip address for e0/0 172.16.0.1/16.
R1(config)=access-list 101 deny ip any any
R1(config)#interafec serial 0/0
R1(config-if)#ip access-group out
R1(config)=access-list 150 deny ip any any
R1(config)#interafec fastethernet 0/0
R1(config-if)#ip access-group in
Now we satisfied the condition which it says: "where there is an outbound ACL and an inbound ACL and they both deny all traffic".
1- ((The inbound ACL will deny all traffic)).
This is obvious because any packet trys to enter the router R1, the ACL will check both ip addresses for the source (any) and destination (can be one of the interfaces belong to R1),,,,because it match the condition for ACL, it will be dropped.
2- ((In this case the outbound ACL can deny transit traffic, but can not deny packets generated by the router which will be transmitted)).
This first paragraph (In this case the outbound ACL can deny transit traffic) is fine,,,the second one which is : " but can not deny packets generated by the router which will be transmitted",,,,,,,my understanding is this when packets generated by router R1, these packets have got source ip address and destination ip address.
The source and destination ip addresses still matching the condition of ACL , why should't it be
denied ?

Urgent Traffic generator.....

Can anyone tell me how to make a traffic generator?
Description of generator: I want to make a traffic generator to generate packets in order to test the network traffic.
Thx for everyone to help me...

So, if you've a list of machine IP's and the ports being listened to by each, I suppose you could write up a program that sends random data to each, possibly tailoring it to the port being written to (HTTP, Telnet, FTP, etc). Or, you could distribute a program to all machines on your network that listen on a well-known port and send data to them. I don't see why you can't just write up a shell script that pings all manner of machines on your network, maybe adjusting the packet size as you like. It shouldn't be too hard to run through your /etc/hosts file and shoot pings at the machines to simulate traffic, right?
Lee

L2TP / PPP & peer refused to authenticate

Hi
Having some trouble with a basic L2TP VPN setup in Xserve 10.6.1 (kerberos auth). From what I've read in the meantime, it seems to indicate that OSX Server is asking for client authentication, that isn't given by the device? (using iPhone 3.0.1 and OSX 10.6.1 client to test). Do I have to turn off client auth somehow? Any suggestions appreciated!
Using Kerberos with a shared secret (no certificate).
fullstatus from the vpn setup is below:
vpn:servicePortsAreRestricted = "NO"
vpn:readWriteSettingsVersion = 1
vpn:servers:com.apple.ppp.pptp:AuthenticationProtocol = "MSCHAP2"
vpn:servers:com.apple.ppp.pptp:CurrentConnections = 0
vpn:servers:com.apple.ppp.pptp:enabled = no
vpn:servers:com.apple.ppp.pptp:MPPEKeySize = "MPPEKeySize128"
vpn:servers:com.apple.ppp.pptp:Type = "PPP"
vpn:servers:com.apple.ppp.pptp:SubType = "PPTP"
vpn:servers:com.apple.ppp.pptp:AuthenticatorPlugins = "DSAuth"
vpn:servers:com.apple.ppp.l2tp:AuthenticationProtocol = "EAP"
vpn:servers:com.apple.ppp.l2tp:CurrentConnections = 0
vpn:servers:com.apple.ppp.l2tp:enabled = yes
vpn:servers:com.apple.ppp.l2tp:startedTime = "2009-10-07 12:41:51 +1000"
vpn:servers:com.apple.ppp.l2tp:Type = "PPP"
vpn:servers:com.apple.ppp.l2tp:SubType = "L2TP"
vpn:servers:com.apple.ppp.l2tp:AuthenticatorPlugins = "DSAuth"
vpn:servers:com.apple.ppp.l2tp:pid = 7459
vpn:servicePortsRestrictionInfo = emptyarray
vpn:health = emptydictionary
vpn:logPaths:com.apple.ppp.pptp_ServerLog = "/var/log/ppp/vpnd.log"
vpn:logPaths:com.apple.ppp.pptp_PPPLog = "/var/log/ppp/vpnd.log"
vpn:logPaths:vpnLog = "/var/log/ppp/vpnd.log"
vpn:configured = yes
vpn:state = "RUNNING"
vpn:setStateVersion = 1
Full server log output for a connection attempt below:
2009-10-07 12:59:55 EST Incoming call... Address given to client = 10.10.5.205
Wed Oct 7 12:59:55 2009 : Directory Services Authentication plugin initialized
Wed Oct 7 12:59:55 2009 : Directory Services Authorization plugin initialized
Wed Oct 7 12:59:55 2009 : L2TP incoming call in progress from '10.10.5.118'...
Wed Oct 7 12:59:55 2009 : L2TP received SCCRQ
Wed Oct 7 12:59:55 2009 : L2TP sent SCCRP
Wed Oct 7 12:59:55 2009 : L2TP received SCCCN
Wed Oct 7 12:59:55 2009 : L2TP received ICRQ
Wed Oct 7 12:59:55 2009 : L2TP sent ICRP
Wed Oct 7 12:59:55 2009 : L2TP received ICCN
Wed Oct 7 12:59:55 2009 : L2TP connection established.
Wed Oct 7 12:59:56 2009 : using link 0
Wed Oct 7 12:59:56 2009 : Using interface ppp0
Wed Oct 7 12:59:56 2009 : Connect: ppp0 <--> socket[34:18]
Wed Oct 7 12:59:56 2009 : sent [LCP ConfReq id=0x1 <asyncmap 0x0> <auth eap> <magic 0x1e583301> <pcomp> <accomp>]
Wed Oct 7 12:59:56 2009 : rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x2d2bf884> <pcomp> <accomp>]
Wed Oct 7 12:59:56 2009 : lcp_reqci: returning CONFACK.
Wed Oct 7 12:59:56 2009 : sent [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x2d2bf884> <pcomp> <accomp>]
Wed Oct 7 12:59:56 2009 : rcvd [LCP ConfNak id=0x1 <auth chap MS-v2>]
Wed Oct 7 12:59:56 2009 : sent [LCP ConfReq id=0x2 <asyncmap 0x0> <magic 0x1e583301> <pcomp> <accomp>]
Wed Oct 7 12:59:56 2009 : rcvd [LCP ConfAck id=0x2 <asyncmap 0x0> <magic 0x1e583301> <pcomp> <accomp>]
Wed Oct 7 12:59:56 2009 : sent [LCP EchoReq id=0x0 magic=0x1e583301]
Wed Oct 7 12:59:56 2009 : peer refused to authenticate: terminating link
Wed Oct 7 12:59:56 2009 : sent [LCP TermReq id=0x3 "peer refused to authenticate"]
Wed Oct 7 12:59:56 2009 : Connection terminated.
Wed Oct 7 12:59:56 2009 : L2TP disconnecting...
Wed Oct 7 12:59:56 2009 : L2TP sent CDN
Wed Oct 7 12:59:56 2009 : L2TP sent StopCCN
Wed Oct 7 12:59:56 2009 : L2TP disconnected
2009-10-07 12:59:56 EST --> Client with address = 10.10.5.205 has hungup
Message was edited by: skermajo

My first suggestion is to switch from Kerberos to MS-CHAPv2 and try again.
Personally, I have not been able to get Kerberos authentication to work reliably, and in fact, right now I seem to not be able to set it any longer (thanks, now I have something to fix )
Let us know if that 'fixed' it or post the log once that is done and we will continue along.
Peter

Traffic generator where we can configure the packets

Hi
Can you please let me know any traffic genertor which generates TCP UDP and IP packets and also where we can configure the Packet before generating the packets..For example I want to cnfigure the content of the packet..Other requirements are I want to give Source IP address and Source port Number along with Destination IP address and Destination port number..
Regards,
Sandhya

Hi Sandhya,
as a starter you might try the tool 'iperf' (freely available for a number of OSs).
http://dast.nlanr.net/Projects/Iperf/
hth
Stefan

How to apply LLQ QoS to traffic generate by router?

There is a voice gateway at the remote site, the voice card connect to the local pstn, for qos, the router must prioritize the voice traffic which is generated locally.
So is there any idea?

No, it doesn't work. please see below:
R2#sh ip local policy
Local policy routing is enabled, using route map QoS
route-map QoS, permit, sequence 10
Match clauses:
ip address (access-lists): IP_QOS_5
Set clauses:
Policy routing matches: 11060 packets, 950804 bytes
Local Policy match many packet of IP prcendence 5 or RTP traffic. But... CBWFQ only match a little RTP packet...
Class-map: Voice (match-any)
5 packets, 458 bytes
30 second offered rate 0 bps, drop rate 0 bps
Match: protocol rtp
5 packets, 458 bytes
30 second rate 0 bps
Queueing
Strict Priority
Output Queue: Conversation 136
Bandwidth 70 (%)
Bandwidth 358 (kbps) Burst 8950 (Bytes)
(pkts matched/bytes matched) 0/0
(total drops/bytes drops) 0/0

Traffic Generating using Smartbits

How to make SmartBits 6000C generate Ethernet traffic from LabView?
I have a DLL for SmartBits and I'm able to connect it.
Could someone advise something?

Ludmilla wrote:
There is explanation on how to Control an Instrument. The function HTGetStructure is mainly used there. As far as I understand I have to use similar approach using function HTSetStructure (in order to set up transmit parameters) isn't it?
You will need to review the documentation for the SmartBits dll in order to determine which functions you will need to use.
Mark Yedinak
"Does anyone know where the love of God goes when the waves turn the minutes to hours?"
Wreck of the Edmund Fitzgerald - Gordon Lightfoot

WAN traffic generated by Remote Post Office?

Just started working for an organization with 2 remote offices, both holding a Groupwise Post Office (GW7 now but will be GW8 soon). In each case, there is no secondary domain for the remote Post Offices thus no MTA. The Post Offices are part of a domain back in the main office. I want to change this and place an MTA at each location, which will require that I create new Post Offices and then move the users over. I would like to know, in the meantime, whether there is any more or less bandwidth consumed by the current configuration without an MTA at the remote sites vs. what we would see with a proper secondary domain, MTA and POA. Any thoughts? Thanks.

Hi Dave,
The first setting I change is on the central MTA:
--tcpinbound
I set this to anywhere between 200 and 400 threads depending on how busy the MTA is. I find the default of 40 not good enough for having secondary domains on the other side of dodgy WAN links.
The second set of changes I make is on the remote MTA:
--tcpwaitconnect
--tcpwaitdata
depending on how bad the WAN connection is I've set these as high as 40 [seconds] in the past - understanding the the default is 5 seconds.
Without the above settings I found that the remote MTA could overrun my central MTA with half-open/closed connections rendering the central MTA unable to process any new connections and thus unable to process mail.
Hope that the above information is useful to somebody :)
Cheers

L2TP - PPP IPCP failure

Hi
I am in the process of building a broadband solution where the telco owns the LAC/LTS infrastrucutre and I own the LNS. The sites are using ADSLoPSTN and run PPPoA to a dialer i/face. The LNS is a 7201 running 12.4-15.T6, the remote is 12.4-17b AdvIPServices
I have an issue where the remote site is not entering the ip address of the LNS into its routing table as a host route, nor does it appear in show users.
The IP Address at the site is being delivered successfully by radius and everything works, but I need the host route for other reasons.
EDIT: RESOLVED
An erronous line of code had been entered at the remote site router config templates:
ip address-pool local
This breaks IPCP - not terminally but just enough to prevent the host route being installed.

My first suggestion is to switch from Kerberos to MS-CHAPv2 and try again.
Personally, I have not been able to get Kerberos authentication to work reliably, and in fact, right now I seem to not be able to set it any longer (thanks, now I have something to fix )
Let us know if that 'fixed' it or post the log once that is done and we will continue along.
Peter

L2TP/PPP Traffic Generator

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