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Re: [lwip-users] lwIP versus Interniche

From: address@hidden
Subject: Re: [lwip-users] lwIP versus Interniche
Date: Mon, 15 Dec 2008 21:18:22 +0100
User-agent: Thunderbird (Macintosh/20081105)

Mike Williamson wrote:
Speaking of IPV6, is there anyone working on that for lwIP? I see a set of code for it, but I last heard that it was alpha level code only.

Hehe, alpha? Not even that I guess. As I see it, the problems are
a) that noone is working on it
b) that an integration of v4 and v6 is missing: you can only use either v4 or v6, not both at a time and c) the v6 implementation seems to just be packing/unpacking of level 7 datagrams, which is far from a total and usable implementation of v6

So in my opinion, there is far more to do than expected from 'alpha'... Any help is of course welcome!



On Mon, Dec 15, 2008 at 2:29 PM, address@hidden <mailto:address@hidden> <address@hidden <mailto:address@hidden>> wrote:

    I guess you won't get too many really neutral answers on this
    list, but I'll reply anyway... Only my opinions of course!

    Altera first used lwIP since they needed an inexpensive (or free)
    TCPIP stack for their users (many TCPIP stacks are quite
    expensive...). They don't seem to have worked too much on this as
    they did not even fix the multithreading bug in ARP present in
    lwIP 1.2.0 (which they used for NIOS II 5.x, I think - the last
    version they suggested lwIP).

    Of course they realized it's cheaper for them to get a partner
    shipping a TCPIP stack is cheaper than having their own developers
    working on lwIP - and the Interniche license isn't too expensive
    for their users (I think 250 EUR per developer license).

    The pros for Interniche are the better integration into the NIOS
    suite and the support for IPv6 (although this seems to cost extra)
    as well as some extra modules (that although cost extra) and the
    possiblity of getting a support contract from Interniche.

    The pros for lwIP are it is free (and free to be modified) and
    there might be more additional software available for free (e.g.
    SNMP server included, many in the contrib module).

    Of course I have to admit lwIP isn't bug-free, but I'll bet my a**
    that the Interniche stack isn't, either...


    PS: We decided for lwIP, which is what me got here :-) But then
    again, we don't use the OS environment provided by Altera...

    bill wrote:

        Interestingly - because Interniche has come up on this list
        before - my new project utilizes the NIOS II which recommends
        the Interniche TCP/IP stack while essentially denouncing lwIP.
        Does anyone have Interniche experience and lwIP experience to
        be able share any pros and cons or comparisons between
        Interniche and lwIP? I'm leaning towards lwIP because of the
        lesser learning curve. I don't have much else to go on at this
        point so any feedback would be greatly appreciated.

        Thank you,



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Michael Williamson
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