kern/52619: Unable to communicate over fwip(4)

[venture37%geeklan.co.uk@localhost]

>Number:         52619
>Category:       kern
>Synopsis:       Unable to communicate over fwip(4)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Oct 14 21:40:00 +0000 2017
>Originator:     Sevan Janiyan
>Release:        
>Organization:
>Environment:
NetBSD 8.99.4 macppc
>Description:
I have a connection over firewire between a Thinkpad x60s running 8.99.4 i386 & a G4 Mac Mini running 8.99.4 macppc.

pinging the interface on the macppc from i386 host after configuring an address on the fwip interface and marking it up both ends, results in the following message being recorded on the macppc host:
ieee1394if0: len(0) != send.pay_len(88) WREQQ(0)

tcpdump -i fwip0 on the macppc host shows replies going out of the fwip intferface but nothing is received on the i386 host which is also running tcpdump.

There is nothing reported as such by the kernel on the i386 host.
>How-To-Repeat:
macppc:
ifconfig fwip0 10.1.1.1/24 up

i386:
ifconfig fwip0 10.1.1.2/24 up
ping 10.1.1.1


check the kernel messages in dmesg output or /var/log/messages
>Fix: