AW: [Xorp-hackers] OSPFv2 Peering stays in INIT State on Cisco

Atanu Ghosh atanu@ICSI.Berkeley.EDU
Fri, 16 Sep 2005 15:37:11 -0700


Hi,

There are trace points in the code that are currently all enabled by
default. In the future it will be possible to manipulate them via the
xorpsh. You haven't seen any of the trace point output because the hello
packets are being rejected.

Here is an example of the output when we peer with our Cisco:
[ 2005/09/16 15:29:30 TRACE xorp_ospfv2 OSPF ] Event(2-WayReceived) Interface(fxp0/fxp0) Neighbour(x.x.x.x) State(Full)

When we get the policy code integrated it should be possible to enable
tracing down to LSA granularity.

Authentication is not implemented yet, we are focusing on getting
multiple areas working.

	Atanu.

>>>>> "Patrick" == Patrick Preuss <deathdealer@gmx.net> writes:

    Patrick> Hello Atanu, No problem, it makes me glad to help.

    Patrick> One question is it possible to leave the debugging code in
    Patrick> ospf and spend it some finder:// urls so it can be
    Patrick> dynamicly turned on like the "debug ip ospf ..." commands
    Patrick> on the cisco? Sorry for that but I came from the cisco side
    Patrick> the world.

    Patrick> I think the same thing happens also on the ethenet with
    Patrick> enterasys routers but I will debug it on Monday, this
    Patrick> weekend is not so good because we have some changes in our
    Patrick> main applications.

    Patrick> Next question where do I turn authentication on?

    Patrick> Gruss    Patrick Marc Preuss Nordstrasse 28 41569
    Patrick> Rommerskirchen
 
   

    Patrick> -----Ursprüngliche Nachricht----- Von:
    Patrick> xorp-hackers-admin@icir.org
    Patrick> [mailto:xorp-hackers-admin@icir.org] Im Auftrag von Atanu
    Patrick> Ghosh Gesendet: Freitag, 16. September 2005 19:29 An:
    Patrick> "Patrick Preuß" Cc: xorp-hackers@xorp.org;
    Patrick> patrick.preuss@retail-sc.com Betreff: Re: [Xorp-hackers]
    Patrick> OSPFv2 Peering stays in INIT State on Cisco

    Patrick> Hi,

    Patrick> I checked in the p2p code last night intending to test it
    Patrick> today, you seem to have beaten me to it:-).

    Patrick> Sending all the configuration files and especially the
    Patrick> ethereal trace was fantastically useful.

    Patrick> From the ethereal trace we can see the the Cisco sent a 60
    Patrick> byte OSPF packet, the OSPF header is reporting 48
    Patrick> bytes. Which is exactly what XORP is reporting. Due to the
    Patrick> mismatch we are rejecting the packet.

    Patrick> I can't see anything in the spec that requires zero or even
    Patrick> garbage padding as in this case. There is often/always a
    Patrick> requirement to pad to meet the link requirements but this
    Patrick> is a 96 byte frame. A 84 byte frame would have met the 60
    Patrick> byte frame requirement.

    Patrick> ---------------------------------------- "Be liberal in
    Patrick> what you accept, and conservative in what you send."  --
    Patrick> jon RFC-1122 (originates in RFC760)
    Patrick> ----------------------------------------

    Patrick> I will attempt to make the code more liberal.

    Patrick> Thanks again for the traces.

    Patrick> 	Atanu.

>>>>> "Patrick" == Patrick Preu <Patrick> writes:

    Patrick> Hello i have testet the OSPF Code on a Linux Machine over a
    Patrick> GRE Interface to a Cisco 7507 and see that the Session
    Patrick> stays in the INIT/- State on the Cisco.

    Patrick> The XORP tells me the Packet size is not Correct.

    Patrick> i have used two different configurations, one you will find
    Patrick> attached is w/o setting p2p mode, the other is with p2p and
    Patrick> both report the same.

    Patrick> i have used quaggar also and there is no problem. i can
    Patrick> provide more information if needed.

    Patrick> XORP Router: Distribution: Fedora Core 3 Kernel:
    Patrick> 2.6.12-1.1376_FC3

    Patrick> Networking: gre or eth

    Patrick> Cisco Router:

    Patrick> Cisco 7507 IOS: RSP Software (RSP-JK9SV-M), Version
    Patrick> 12.3(13)

    Patrick> The Tunnel is configured from the OS.

    Patrick> Please have a look at Bug 216
    Patrick> http://www.xorp.org/bugzilla/show_bug.cgi?id=216

    Patrick> -- best regards Patrick Marc Preuss
    Patrick> 
    Patrick> ----------------------------------------------------------------------
    Patrick> --

    Patrick> "...a hundred billion castaways looking for a home."  -
    Patrick> Sting "Message in a Bottle" (1979)

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    Patrick> ohne Risiko!  Satte Provisionen für GMX Partner:
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