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  1. Senior Member CCIEWANNABE's Avatar
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    #1

    Default **JUNOS router emulation in GNS3**

    yes, this is it my friends. The big break we've all waited patiently for. May I present to you the newest version of GNS3 which incorporates Junos router emulation:

    GNS3 0.7RC1 | GNS3

    Use the following tutorial for installation. Again, not quite as easy to install just yet, but your patience will pay off.

    Olive reloaded or how to emulate Juniper routers | GNS3

    Man, the JNCIP and JNCIE are looking pretty nice right about now :]
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  3. Went to the dark side.... Moderator networker050184's Avatar
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    #2
    It may be time to give GNS3 another shot. Thanks for the link!
    An expert is a man who has made all the mistakes which can be made.
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  4. Senior Member ilcram19-2's Avatar
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    #3
    OMG that is the coolest thing ever
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  5. Senior Member TheShadow's Avatar
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    #4
    Aldur can we have your thoughts pretty please
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  6. Juniper Moderator Moderator Aldur's Avatar
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    #5
    This does look promising. I'm gonna play around with it and let you guys know what I think.
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  7. Senior Member TheShadow's Avatar
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    #6
    Thanks I am sure we will look forward to it.
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  8. Hoogen
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    #7
    There is a guy in groupstudy who was helpful in providing graphical frontend for Qemu..Vladmir K

    RapidShare Webhosting + Webspace

    The link he provided..

    And some tips provided.

    This version correctly works with multicast on fxp interfaces with JunOS prior to 9.1 or em interfaces with 9.1 or later

    Application use udp-sockets for connections between router interfaces (you
    can see it in parameter list, example sport=10001 dport=10004)
    If you run another copy of application or incorrectly closed previous copy,
    it can utilize already used port and qemu cannot build udp-sockets.
    You can check used udp-ports with command

    netstat -all
    ...
    UDP pn-15:10001 *:*
    UDP pn-15:10002 *:*
    UDP pn-15:10003 *:*
    UDP pn-15:10004 *:*
    UDP pn-15:10005 *:*
    UDP pn-15:10017 *:*
    UDP pn-15:10018 *:*
    UDP pn-15:10019 *:*
    UDP pn-15:10020 *:*
    UDP pn-15:10021 *:*
    ...

    You need change base udp port number (10000 by default) to another value in
    topology properties.


    // cant figure out how to move devices around..
    Click mouse button on router. Yellow square appear in a router center. Move
    the pointer of mouse to the square (the cruciform mouse cursor will
    appear), click left mouse button and, holding, move router.

    //i cant use more than 1 fxp interface...
    you can use 8 fxp a 8 em interfaces. In router properties you can set field
    "fxp interfaces count" in range 1-8 (1 when you create router)
    Field "Interfaces count (total)" is sum em+fxp interfaces
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  9. Senior Member Turgon's Avatar
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    #8
    Quote Originally Posted by CCIEWANNABE View Post
    yes, this is it my friends. The big break we've all waited patiently for. May I present to you the newest version of GNS3 which incorporates Junos router emulation:

    GNS3 0.7RC1 | GNS3

    Use the following tutorial for installation. Again, not quite as easy to install just yet, but your patience will pay off.

    Olive reloaded or how to emulate Juniper routers | GNS3

    Man, the JNCIP and JNCIE are looking pretty nice right about now :]
    Cool. I will try this. Do you need a Junos image?
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  10. Senior Member
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    #9
    Quote Originally Posted by CCIEWANNABE View Post
    yes, this is it my friends. The big break we've all waited patiently for. May I present to you the newest version of GNS3 which incorporates Junos router emulation:

    I bet this was the break Juniper was waiting for also. After I finish up my CCNP i'm going to take a long look at Juniper. I'm on them everyday, but since they are the heavy lifters of the network I dare not venture pass the show commands. This will put a lot of us in a position to learn more about how things work on this side of the world.
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  11. Senior Member Turgon's Avatar
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    #10
    Quote Originally Posted by shodown View Post
    I bet this was the break Juniper was waiting for also. After I finish up my CCNP i'm going to take a long look at Juniper. I'm on them everyday, but since they are the heavy lifters of the network I dare not venture pass the show commands. This will put a lot of us in a position to learn more about how things work on this side of the world.
    You could have used Olive but I couldn't be bothered with all the p1ssing aroung setting all that up.
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  12. Senior Member
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    #11
    Quote Originally Posted by Turgon View Post
    You could have used Olive but I couldn't be bothered with all the p1ssing aroung setting all that up.

    You hit it on the head. I didn't have time to be trying to figure out Olive's and GNS3/Dynamips is Free99 no gear to buy for each olive.
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  13. Senior Member seraphus's Avatar
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    #12
    Quote Originally Posted by Turgon View Post
    Cool. I will try this. Do you need a Junos image?
    Yes, just as you need(ed) a real IOS.



    Olive reloaded or how to emulate Juniper routers | GNS3
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  14. Junior Member
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    #13
    That is great news!

    I wonder is it possible to emulate SRX series ?
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  15. was here.
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    #14
    Quote Originally Posted by shodown View Post
    I bet this was the break Juniper was waiting for also.
    Not really. JunOS has been running inside VMs for years now since it is a FreeBSD based x86 box. GNS3 just puts a GUI on the front of QEMU which does the actual work of emulating a x86 box.
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  16. Senior Member
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    #15
    Quote Originally Posted by tiersten View Post
    Not really. JunOS has been running inside VMs for years now since it is a FreeBSD based x86 box. GNS3 just puts a GUI on the front of QEMU which does the actual work of emulating a x86 box.

    I respectfully disagree. You can do all that stuff and get it up, however I have only seen the uber geeks doing that. Most of the normal IT guys that I know haven't touched a VM or a olive. GNS3 has been huge for most. Its easy to setup and get going. A lot of people just don't want the hassle of trying to fight with systems and work arounds to get them going.
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  17. was here.
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    #16
    Quote Originally Posted by shodown View Post
    I respectfully disagree. You can do all that stuff and get it up, however I have only seen the uber geeks doing that. Most of the normal IT guys that I know haven't touched a VM or a olive. GNS3 has been huge for most. Its easy to setup and get going. A lot of people just don't want the hassle of trying to fight with systems and work arounds to get them going.
    Have you actually read the guide? The JunOS for GNS3 guide is the same as the step by step guides on how to install FreeBSD + JunOS on a VM.

    It doesn't require an "uber geek" to set this up. If you're comfortable with the IOS and JunOS CLI then you're perfectly capable of following the guides and making your own JunOS VM or Olive.
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  18. Senior Member
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    #17
    Um, if you aren't an uber geek, what the hell are you doing trying to emulate a cli router os?
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  19. Senior Member Turgon's Avatar
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    #18
    I thought about building out an Olive a couple of years ago, but once I looked into it I was put off by the hardware requirements and time required messing around to get it working. Similarly with dynamips I put it off as I always had real hardware at my disposal. I think I will have a go at the GNS thing this weekend.
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  20. Junior Member
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    #19

    Default Help Hoogen!

    Hi friend, I am interested in the software from the guy of groupstudy but the link that you have posted is just only for the patched version of qemu, not for the graphical front end I have gone to groupstudy but the link that Vladimir posts is not longer avalaible..

    Thanks in advance.
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  21. Senior Member TheShadow's Avatar
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    #20
    I don't know which one offhand but everything in groupstudy is archived month to month for several years. Trace them down from the main web page.
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  22. Junior Member
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    #21
    Thanks TheShadow, but in this case it is impossible, the author of the software uploaded it to Rapidshare and posted the link at groupstudy. This link is not longer avalaible due to a lack of activity (no frequent download). I guess that some of you guys have downloaded this software to try it.. it will be great if you share this free software

    Thanks!
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  23. Senior Member rfult001's Avatar
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    #22
    Don't know if this is the same frontend he posted but it works:
    Download Qemu Manager
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  24. Senior Member
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    #23
    Quote Originally Posted by shodown View Post
    I respectfully disagree. You can do all that stuff and get it up, however I have only seen the uber geeks doing that. Most of the normal IT guys that I know haven't touched a VM or a olive. GNS3 has been huge for most. Its easy to setup and get going. A lot of people just don't want the hassle of trying to fight with systems and work arounds to get them going.
    Alright, please understand that I'm not trying to pick on you, but you have a few misconceptions. As tiersten has pointed out, GNS3 is just another VM monitor under the hood. Getting this up and running in VMWare is not much more difficult. This just happens to be a very well written guide.

    And most normal IT guys won't be touching, much less configuring, a core router. If you're not an ubergeek, you're not touching my network. This mindset of everything needing to be quick and easy in regards to learning network engineering as a trade disturbs me.
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  25. Senior Member Turgon's Avatar
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    #24
    Quote Originally Posted by Forsaken_GA View Post
    Alright, please understand that I'm not trying to pick on you, but you have a few misconceptions. As tiersten has pointed out, GNS3 is just another VM monitor under the hood. Getting this up and running in VMWare is not much more difficult. This just happens to be a very well written guide.

    And most normal IT guys won't be touching, much less configuring, a core router. If you're not an ubergeek, you're not touching my network. This mindset of everything needing to be quick and easy in regards to learning network engineering as a trade disturbs me.
    I just couldn't put the time aside with so much going on elsewhere but you make a fair point.

    Im afraid that trend has been going on for a while and it's separating the men from the boys in networking. Back in 2001 the developers I supported had CCO documents covering things like TCP intercept and used snoop to debug problems with transaction software connections. So you really had to make an effort to stay on top. Prior to that just getting something working which is considered simple today like a sound card for example might require a lot of effort. We spent a lot of time working with readme files and inadequate documentation. There is a lot more separation between technicians and end users these days and with the 'two clicks and its done' mentality it's not surprising many engineers dont know what proxy arp does or can follow a TCPdump properly. You don't learn it all from study tracks. You have to do it and work it out in the field. Ease and speed is not always conducive to that.
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  26. Senior Member CCIEWANNABE's Avatar
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    #25
    I will be setting this up shortly on my GNS3 server. I'll post videos of it working when I get it done. Like others have said, this isn't solely GNS3/Juniper, you still have to download Freebsd and run stuff in it and tie that into a "cloud" node in GNS3. So what you end up with if you are using all Juniper nodes in GNS3 is a Bunch of Cloud nodes I guess :]

    I think the makers are trying to simplify the product and interaction with Juniper devices. So, this being the first version incorporating Juniper devices may seem kinda "rough". I guarantee they will come out with later versions that are much easier to install. Maybe like an all-in-one mega download with freebsd and all the other apps, since they are all FREE this makes it easy for them to do.

    Time to lab it up!!
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