[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #20 from Craig Rodrigues --- Sorry for the late feedback. I can confirm that you fixed the problem. This was a very weird and convoluted corner case. Thank you so much for digging into this and fixing

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 Michael Tuexen tue...@freebsd.org changed: What|Removed |Added Status|In Progress |Closed

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #19 from commit-h...@freebsd.org --- A commit references this bug: Author: tuexen Date: Sat Jun 20 08:25:31 UTC 2015 New revision: 284633 URL: https://svnweb.freebsd.org/changeset/base/284633 Log: MFC r284515: Add FIB

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #18 from Michael Tuexen tue...@freebsd.org --- (In reply to Craig Rodrigues from comment #17) Ahh. Thanks for the hint. Will do. Best regards Michael -- You are receiving this mail because: You are on the CC list for the bug.

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #16 from Michael Tuexen tue...@freebsd.org --- (In reply to Alan Somers from comment #15) Yes, you can failover from one ISP to another. Currently this is done by having corresponding entries in a single routing table for the

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #14 from Michael Tuexen tue...@freebsd.org --- (In reply to Alan Somers from comment #13) I think interfaces can assign fibs to packets, it is a field in the mbuf packet header. It makes sense to use this information in case you

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #15 from Alan Somers asom...@freebsd.org --- (In reply to Michael Tuexen from comment #14) You're right about the interface FIB. It will take incoming packets with a certain FIB. But it's not completely general; it's possible

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #13 from Alan Somers asom...@freebsd.org --- FIBs are used to have different routing policies for different kinds of traffic. In general, you can't correctly learn which fib you ought to use based on any feature of a received

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #12 from Michael Tuexen tue...@freebsd.org --- Hi Craig, I'm in the process of understanding how fibs work and thinking about how they should work for SCTP. So one possibility is that a socket uses a fib. So all paths of an

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #11 from Michael Tuexen tue...@freebsd.org --- Yes, I do. Using net.add_addr_allfibs=0, I get routing tables like you have. However, I had to call setfib() before socket() in your examples. With that I can reproduce the problem.

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #5 from Michael Tuexen tue...@freebsd.org --- Hi Craig, when setting up two VMs as suggested, they can just reach each other. Even ping 172.8.1.4 works, I don't need setfib 2 ping 172.8.1.4. What config do I need to test the

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #7 from Michael Tuexen tue...@freebsd.org --- Here is what I do and what happens to the routing table. As you see, a route gets added to fib 0. Is this expected? Intended? ifconfig em0 em0:

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #6 from Craig Rodrigues rodr...@freebsd.org --- You need to set up a default IP address and routing table on em0 that is *not* a 172 address. That way, if you do: netstat -r you will see the default routing table, and if you

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #10 from Craig Rodrigues rodr...@freebsd.org --- (In reply to Michael Tuexen from comment #8) Are you good to go with having an environment to repro the problem? My routing table looks like this FIB 0 = netstat -nr

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 Michael Tuexen tue...@freebsd.org changed: What|Removed |Added Status|New |In Progress --

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #8 from Michael Tuexen tue...@freebsd.org --- OK, I need sysctl -w net.add_addr_allfibs=0 to reproduce your problem. Best regards Michael -- You are receiving this mail because: You are on the CC list for the bug.

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 Alan Somers asom...@freebsd.org changed: What|Removed |Added CC|

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #4 from Michael Tuexen tue...@freebsd.org --- Hi Craig, thank you very much for reporting the issue and providing steps to reproduce the problem. I'll look into it. Best regards Michael -- You are receiving this mail

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 Craig Rodrigues rodr...@freebsd.org changed: What|Removed |Added Assignee|freebsd-b...@freebsd.org

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #3 from Craig Rodrigues rodr...@freebsd.org --- In sys/netinet/sctp_os_bsd.h , the SCTP_RTALLOC macro calls the rtalloc_ign() function which ignores fibs. It should probably be changed to call rtalloc_ign_fib() In addition,

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #1 from Craig Rodrigues rodr...@freebsd.org --- Created attachment 157024 -- https://bugs.freebsd.org/bugzilla/attachment.cgi?id=157024action=edit server.c -- You are receiving this mail because: You are on the CC list for

[Bug 200379] SCTP stack is not FIB aware

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200379 --- Comment #2 from Craig Rodrigues rodr...@freebsd.org --- Created attachment 157025 -- https://bugs.freebsd.org/bugzilla/attachment.cgi?id=157025action=edit client.c -- You are receiving this mail because: You are on the CC list for