Re: dtrace to trace incoming connection not suceeding ?

From: Kurt Jaeger <pi_at_freebsd.org>
Date: Fri, 12 Nov 2021 17:49:24 UTC
Hello,

> > Background: a fbsd 13.0p4 amd64 box, with a frr-7.4_4 (or 7.5.1_3)
> > fails to act on incoming ipv4 tcp 179 connections.

That box above (c5) fails to speak to a 12.2-RELEASE-p7 box (c1).

I have a second case, between a 12.2-RELEASE-p1 and this 12.2-RELEASE-p7
box (c9), same failure.

And I have a third case between a spare box (c2), running 13.0p4, which
fails to speak to both the 12.2-RELEASE-p7 and the 12.2-RELEASE-p1 box 8-(

And the funny thing is: The 13.0p4 box talks sucessfully
with a 12.1p8 box.

Below is a list of the hardware in each case:

c1	12.2p7			can't talk to c9, c5
	ix0@pci0:2:0:0: class=0x020000 card=0x061115d9 chip=0x10fb8086 rev=0x01 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82599ES 10-Gigabit SFI/SFP+ Network Connection'

c2	13.0p4, spare box	can't talk to c1, c5
	ix0@pci0:1:0:0: class=0x020000 rev=0x01 hdr=0x00 vendor=0x8086 device=0x10fb subvendor=0x8086 subdevice=0x7a12
    vendor     = 'Intel Corporation'
    device     = '82599 10 Gigabit Dual Port Network Connection'

c5	13.0p4, where it all started (it had 12.1p8 before)
	ix0@pci0:2:0:0: class=0x020000 rev=0x01 hdr=0x00 vendor=0x8086 device=0x10fb subvendor=0x8086 subdevice=0x000c
    vendor     = 'Intel Corporation'
    device     = '82599ES 10-Gigabit SFI/SFP+ Network Connection'

c6	12.1p8		c5 can talk to that
	ix0@pci0:1:0:0: class=0x020000 card=0x7a128086 chip=0x10fb8086 rev=0x01 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82599ES 10-Gigabit SFI/SFP+ Network Connection'

c9	12.2p1
	ix0@pci0:2:0:0: class=0x020000 card=0x00038086 chip=0x10fb8086 rev=0x01 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82599ES 10-Gigabit SFI/SFP+ Network Connection'

-- 
pi@FreeBSD.org         +49 171 3101372                  Now what ?