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Date:      Mon, 02 Jun 2025 10:07:24 +0000
From:      bugzilla-noreply@freebsd.org
To:        net@FreeBSD.org
Subject:   [Bug 286322] IPv6 doesn't work across different FIBs (epair)
Message-ID:  <bug-286322-7501-EAv8uvwvKc@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-286322-7501@https.bugs.freebsd.org/bugzilla/>
References:  <bug-286322-7501@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D286322

--- Comment #13 from Paige Thompson <paige@paige.bio> ---


root@fbsdshell:/home/admin # ifconfig epair127 create
epair127a
root@fbsdshell:/home/admin # ifconfig epair127a inet6 fcff::a/64
root@fbsdshell:/home/admin # ifconfig epair127b inet6 fcff::b/64 fib 127
root@fbsdshell:/home/admin # truss ping fcff::b
mmap(0x0,135168,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) =3D
29711514206208 (0x1b05c0400000)
mprotect(0x16180ce41000,8192,PROT_READ)         =3D 0 (0x0)
issetugid()                                     =3D 0 (0x0)
sigfastblock(0x1,0x16180ce43ea0)                =3D 0 (0x0)
open("/etc/libmap.conf",O_RDONLY|O_CLOEXEC,030020030030) =3D 3 (0x3)
fstat(3,{ mode=3D-rw-r--r-- ,inode=3D2640479,size=3D35,blksize=3D32768 }) =
=3D 0 (0x0)
read(3,"includedir /usr/local/etc/libmap"...,35) =3D 35 (0x23)
close(3)                                        =3D 0 (0x0)
open("/usr/local/etc/libmap.d",O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC,01=
65)
ERR#2 'No such file or directory'
open("/var/run/ld-elf.so.hints",O_RDONLY|O_CLOEXEC,02163254516) =3D 3 (0x3)
read(3,"Ehnt\^A\0\0\0\M^@\0\0\0k\0\0\0\0"...,128) =3D 128 (0x80)
fstat(3,{ mode=3D-r--r--r-- ,inode=3D3440240,size=3D235,blksize=3D32768 }) =
=3D 0 (0x0)
pread(3,"/lib:/usr/lib:/usr/lib/compat:/u"...,107,0x80) =3D 107 (0x6b)
close(3)                                        =3D 0 (0x0)
open("/lib/libm.so.5",O_RDONLY|O_CLOEXEC|O_VERIFY,00) =3D 3 (0x3)
fstat(3,{ mode=3D-r--r--r-- ,inode=3D3201689,size=3D236656,blksize=3D32768 =
}) =3D 0 (0x0)
mmap(0x0,4096,PROT_READ,MAP_PRIVATE|MAP_PREFAULT_READ,3,0x0) =3D 1325083329=
7408
(0xc0d33363000)
mmap(0x0,249856,PROT_NONE,MAP_GUARD,-1,0x0)     =3D 13250844463104
(0xc0d33e09000)
mmap(0xc0d33e09000,77824,PROT_READ,MAP_PRIVATE|MAP_FIXED|MAP_NOCORE|MAP_PRE=
FAULT_READ,3,0x0)
=3D 13250844463104 (0xc0d33e09000)
mmap(0xc0d33e1c000,159744,PROT_READ|PROT_EXEC,MAP_PRIVATE|MAP_FIXED|MAP_NOC=
ORE|MAP_PREFAULT_READ,3,0x12000)
=3D 13250844540928 (0xc0d33e1c000)
mmap(0xc0d33e43000,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREF=
AULT_READ,3,0x38000)
=3D 13250844700672 (0xc0d33e43000)
mmap(0xc0d33e44000,8192,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREF=
AULT_READ,3,0x38000)
=3D 13250844704768 (0xc0d33e44000)
munmap(0xc0d33363000,4096)                      =3D 0 (0x0)
close(3)                                        =3D 0 (0x0)
open("/lib/libmd.so.6",O_RDONLY|O_CLOEXEC|O_VERIFY,00) =3D 3 (0x3)
fstat(3,{ mode=3D-r--r--r-- ,inode=3D3201733,size=3D111512,blksize=3D32768 =
}) =3D 0 (0x0)
mmap(0x0,4096,PROT_READ,MAP_PRIVATE|MAP_PREFAULT_READ,3,0x0) =3D 1325086568=
4480
(0xc0d35246000)
mmap(0x0,122880,PROT_NONE,MAP_GUARD,-1,0x0)     =3D 13250831073280
(0xc0d33144000)
mmap(0xc0d33144000,32768,PROT_READ,MAP_PRIVATE|MAP_FIXED|MAP_NOCORE|MAP_PRE=
FAULT_READ,3,0x0)
=3D 13250831073280 (0xc0d33144000)
mmap(0xc0d3314c000,81920,PROT_READ|PROT_EXEC,MAP_PRIVATE|MAP_FIXED|MAP_NOCO=
RE|MAP_PREFAULT_READ,3,0x7000)
=3D 13250831106048 (0xc0d3314c000)
mmap(0xc0d33160000,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREF=
AULT_READ,3,0x1a000)
=3D 13250831187968 (0xc0d33160000)
mmap(0xc0d33161000,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREF=
AULT_READ,3,0x1a000)
=3D 13250831192064 (0xc0d33161000)
munmap(0xc0d35246000,4096)                      =3D 0 (0x0)
close(3)                                        =3D 0 (0x0)
open("/lib/libcasper.so.1",O_RDONLY|O_CLOEXEC|O_VERIFY,00) =3D 3 (0x3)
fstat(3,{ mode=3D-r--r--r-- ,inode=3D3201739,size=3D23880,blksize=3D32768 }=
) =3D 0 (0x0)
mmap(0x0,4096,PROT_READ,MAP_PRIVATE|MAP_PREFAULT_READ,3,0x0) =3D 1325084890=
7264
(0xc0d34246000)
mmap(0x0,32768,PROT_NONE,MAP_GUARD,-1,0x0)      =3D 13250856153088
(0xc0d3492f000)
mmap(0xc0d3492f000,12288,PROT_READ,MAP_PRIVATE|MAP_FIXED|MAP_NOCORE|MAP_PRE=
FAULT_READ,3,0x0)
=3D 13250856153088 (0xc0d3492f000)
mmap(0xc0d34932000,12288,PROT_READ|PROT_EXEC,MAP_PRIVATE|MAP_FIXED|MAP_NOCO=
RE|MAP_PREFAULT_READ,3,0x2000)
=3D 13250856165376 (0xc0d34932000)
mmap(0xc0d34935000,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREF=
AULT_READ,3,0x5000)
=3D 13250856177664 (0xc0d34935000)
mmap(0xc0d34936000,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREF=
AULT_READ,3,0x5000)
=3D 13250856181760 (0xc0d34936000)
munmap(0xc0d34246000,4096)                      =3D 0 (0x0)
close(3)                                        =3D 0 (0x0)
open("/lib/libcap_dns.so.2",O_RDONLY|O_CLOEXEC|O_VERIFY,00) =3D 3 (0x3)
fstat(3,{ mode=3D-r--r--r-- ,inode=3D3201726,size=3D17984,blksize=3D32768 }=
) =3D 0 (0x0)
mmap(0x0,4096,PROT_READ,MAP_PRIVATE|MAP_PREFAULT_READ,3,0x0) =3D 1325087925=
4528
(0xc0d35f37000)
mmap(0x0,28672,PROT_NONE,MAP_GUARD,-1,0x0)      =3D 13250857783296
(0xc0d34abd000)
mmap(0xc0d34abd000,8192,PROT_READ,MAP_PRIVATE|MAP_FIXED|MAP_NOCORE|MAP_PREF=
AULT_READ,3,0x0)
=3D 13250857783296 (0xc0d34abd000)
mmap(0xc0d34abf000,12288,PROT_READ|PROT_EXEC,MAP_PRIVATE|MAP_FIXED|MAP_NOCO=
RE|MAP_PREFAULT_READ,3,0x1000)
=3D 13250857791488 (0xc0d34abf000)
mmap(0xc0d34ac2000,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREF=
AULT_READ,3,0x3000)
=3D 13250857803776 (0xc0d34ac2000)
mmap(0xc0d34ac3000,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREF=
AULT_READ,3,0x3000)
=3D 13250857807872 (0xc0d34ac3000)
munmap(0xc0d35f37000,4096)                      =3D 0 (0x0)
close(3)                                        =3D 0 (0x0)
open("/lib/libipsec.so.4",O_RDONLY|O_CLOEXEC|O_VERIFY,00) =3D 3 (0x3)
fstat(3,{ mode=3D-r--r--r-- ,inode=3D3201749,size=3D31880,blksize=3D32768 }=
) =3D 0 (0x0)
mmap(0x0,4096,PROT_READ,MAP_PRIVATE|MAP_PREFAULT_READ,3,0x0) =3D 1325087668=
6336
(0xc0d35cc4000)
mmap(0x0,45056,PROT_NONE,MAP_GUARD,-1,0x0)      =3D 13250869526528
(0xc0d355f0000)
mmap(0xc0d355f0000,16384,PROT_READ,MAP_PRIVATE|MAP_FIXED|MAP_NOCORE|MAP_PRE=
FAULT_READ,3,0x0)
=3D 13250869526528 (0xc0d355f0000)
mmap(0xc0d355f4000,16384,PROT_READ|PROT_EXEC,MAP_PRIVATE|MAP_FIXED|MAP_NOCO=
RE|MAP_PREFAULT_READ,3,0x3000)
=3D 13250869542912 (0xc0d355f4000)
mmap(0xc0d355f8000,8192,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREF=
AULT_READ,3,0x6000)
=3D 13250869559296 (0xc0d355f8000)
mmap(0xc0d355fa000,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREF=
AULT_READ,3,0x7000)
=3D 13250869567488 (0xc0d355fa000)
munmap(0xc0d35cc4000,4096)                      =3D 0 (0x0)
close(3)                                        =3D 0 (0x0)
open("/lib/libc.so.7",O_RDONLY|O_CLOEXEC|O_VERIFY,00) =3D 3 (0x3)
fstat(3,{ mode=3D-r--r--r-- ,inode=3D3201692,size=3D1957880,blksize=3D32768=
 }) =3D 0
(0x0)
mmap(0x0,4096,PROT_READ,MAP_PRIVATE|MAP_PREFAULT_READ,3,0x0) =3D 1325087796=
0192
(0xc0d35dfb000)
mmap(0x0,3158016,PROT_NONE,MAP_GUARD,-1,0x0)    =3D 13250886672384
(0xc0d3664a000)
mmap(0xc0d3664a000,544768,PROT_READ,MAP_PRIVATE|MAP_FIXED|MAP_NOCORE|MAP_PR=
EFAULT_READ,3,0x0)
=3D 13250886672384 (0xc0d3664a000)
mmap(0xc0d366cf000,1355776,PROT_READ|PROT_EXEC,MAP_PRIVATE|MAP_FIXED|MAP_NO=
CORE|MAP_PREFAULT_READ,3,0x84000)
=3D 13250887217152 (0xc0d366cf000)
mmap(0xc0d3681a000,40960,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PRE=
FAULT_READ,3,0x1ce000)
=3D 13250888572928 (0xc0d3681a000)
mmap(0xc0d36824000,28672,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PRE=
FAULT_READ,3,0x1d7000)
=3D 13250888613888 (0xc0d36824000)
mmap(0xc0d3682b000,1187840,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_A=
NON,-1,0x0)
=3D 13250888642560 (0xc0d3682b000)
munmap(0xc0d35dfb000,4096)                      =3D 0 (0x0)
close(3)                                        =3D 0 (0x0)
open("/lib/libnv.so.1",O_RDONLY|O_CLOEXEC|O_VERIFY,00) =3D 3 (0x3)
fstat(3,{ mode=3D-r--r--r-- ,inode=3D3201714,size=3D94768,blksize=3D32768 }=
) =3D 0 (0x0)
mmap(0x0,4096,PROT_READ,MAP_PRIVATE|MAP_PREFAULT_READ,3,0x0) =3D 1325091919=
0528
(0xc0d3854d000)
mmap(0x0,106496,PROT_NONE,MAP_GUARD,-1,0x0)     =3D 13250876432384
(0xc0d35c86000)
mmap(0xc0d35c86000,40960,PROT_READ,MAP_PRIVATE|MAP_FIXED|MAP_NOCORE|MAP_PRE=
FAULT_READ,3,0x0)
=3D 13250876432384 (0xc0d35c86000)
mmap(0xc0d35c90000,57344,PROT_READ|PROT_EXEC,MAP_PRIVATE|MAP_FIXED|MAP_NOCO=
RE|MAP_PREFAULT_READ,3,0x9000)
=3D 13250876473344 (0xc0d35c90000)
mmap(0xc0d35c9e000,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREF=
AULT_READ,3,0x16000)
=3D 13250876530688 (0xc0d35c9e000)
mmap(0xc0d35c9f000,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREF=
AULT_READ,3,0x16000)
=3D 13250876534784 (0xc0d35c9f000)
munmap(0xc0d3854d000,4096)                      =3D 0 (0x0)
close(3)                                        =3D 0 (0x0)
mprotect(0xc0d33e43000,4096,PROT_READ)          =3D 0 (0x0)
mprotect(0xc0d33160000,4096,PROT_READ)          =3D 0 (0x0)
mprotect(0xc0d34935000,4096,PROT_READ)          =3D 0 (0x0)
mprotect(0xc0d34ac2000,4096,PROT_READ)          =3D 0 (0x0)
mprotect(0xc0d355f8000,8192,PROT_READ)          =3D 0 (0x0)
mprotect(0xc0d3681a000,40960,PROT_READ)         =3D 0 (0x0)
mprotect(0xc0d35c9e000,4096,PROT_READ)          =3D 0 (0x0)
mprotect(0xc0d3681a000,40960,PROT_READ|PROT_WRITE) =3D 0 (0x0)
mprotect(0xc0d3681a000,40960,PROT_READ)         =3D 0 (0x0)
readlink("/etc/malloc.conf",0xc0d325de120,1024) ERR#2 'No such file or
directory'
issetugid()                                     =3D 0 (0x0)
mmap(0x0,2097152,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON|MAP_ALIGNED(21),=
-1,0x0)
=3D 29711516303360 (0x1b05c0600000)
mmap(0x0,2097152,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON|MAP_ALIGNED(12),=
-1,0x0)
=3D 29711518400512 (0x1b05c0800000)
mmap(0x0,6291456,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON|MAP_ALIGNED(21),=
-1,0x0)
=3D 29711520497664 (0x1b05c0a00000)
mprotect(0xc0511ce4000,4096,PROT_READ)          =3D 0 (0x0)
__sysctlbyname("kern.features.inet",18,0xc0d325df4ac,0xc0d325df4b0,0x0,0) =
=3D 0
(0x0)
__sysctlbyname("kern.features.inet6",19,0xc0d325df4ac,0xc0d325df4b0,0x0,0) =
=3D 0
(0x0)
__sysctlbyname("kern.features.inet6",19,0xc0d325df4ac,0xc0d325df4b0,0x0,0) =
=3D 0
(0x0)
__sysctlbyname("kern.features.inet",18,0xc0d325df4ac,0xc0d325df4b0,0x0,0) =
=3D 0
(0x0)
socketpair(0x1,0x20000001,0x0,0xc0d325dca38)    =3D 0 (0x0)
pdfork(0xc0d325dca34,0x0)                       =3D 1030 (0x406)
close(4)                                        =3D 0 (0x0)
fcntl(3,F_GETFL,)                               =3D 6 (0x6)
fcntl(5,F_GETFL,)                               =3D 2 (0x2)
select(4,0x0,{ 3 },0x0,0x0)                     =3D 1 (0x1)
sendto(3,"l\0\0\0\0\0\0\0\0\0\0B\0\0\0\0\0"...,85,0,NULL,0) =3D 85 (0x55)
getsockopt(3,SOL_SOCKET,SO_TYPE,0xc0d325dc9e8,0xc0d325dc9e4) =3D 0 (0x0)
select(4,{ 3 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(3,"l\0\0\^A\0\0\0\0\0\0\0h\0\0\0\0"...,19,0,NULL,0x0) =3D 19 (0x13)
select(4,{ 3 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(3,"\^F\a\0\b\0\0\0\0\0\0\0\0\0\0\0"...,104,0,NULL,0x0) =3D 104 (0x=
68)
select(4,{ 3 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvmsg(3,{NULL,0,[{"\0",1}],1,{{level=3DSOL_SOCKET,type=3DSCM_RIGHTS,data=
=3D{0x04,0x00,0x00,0x00}}},24,MSG_CMSG_CLOEXEC},MSG_CMSG_CLOEXEC)
=3D 1 (0x1)
fcntl(4,F_GETFL,)                               =3D 6 (0x6)
close(5)                                        =3D 0 (0x0)
close(3)                                        =3D 0 (0x0)
select(5,0x0,{ 4 },0x0,0x0)                     =3D 1 (0x1)
sendto(4,"l\0\0\0\0\0\0\0\0\0\0!\0\0\0\0\0"...,52,0,NULL,0) =3D 52 (0x34)
getsockopt(4,SOL_SOCKET,SO_TYPE,0xc0d325dc948,0xc0d325dc944) =3D 0 (0x0)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"l\0\0\0\0\0\0\0\0\0\0;\0\0\0\0\0"...,19,0,NULL,0x0) =3D 19 (0x1=
3)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"\^A\a\0\0\0\0\0\0\0\0\0\0\0\0\0"...,59,0,NULL,0x0) =3D 59 (0x3b)
select(5,0x0,{ 4 },0x0,0x0)                     =3D 1 (0x1)
sendto(4,"l\0\0\0\0\0\0\0\0\0\0\M-(\0\0\0"...,187,0,NULL,0) =3D 187 (0xbb)
getsockopt(4,SOL_SOCKET,SO_TYPE,0xc0d325dc948,0xc0d325dc944) =3D 0 (0x0)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"l\0\0\0\0\0\0\0\0\0\0!\0\0\0\0\0"...,19,0,NULL,0x0) =3D 19 (0x1=
3)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"\^C\^F\0\b\0\0\0\0\0\0\0\0\0\0\0"...,33,0,NULL,0x0) =3D 33 (0x2=
1)
select(5,0x0,{ 4 },0x0,0x0)                     =3D 1 (0x1)
sendto(4,"l\0\0\0\0\0\0\0\0\0\0!\0\0\0\0\0"...,52,0,NULL,0) =3D 52 (0x34)
getsockopt(4,SOL_SOCKET,SO_TYPE,0xc0d325dc948,0xc0d325dc944) =3D 0 (0x0)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"l\0\0\0\0\0\0\0\0\0\0\M-(\0\0\0"...,19,0,NULL,0x0) =3D 19 (0x13)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"\^E\a\0Y\0\0\0\0\0\0\0\0\0\0\0\0"...,168,0,NULL,0x0) =3D 168 (0=
xa8)
select(5,0x0,{ 4 },0x0,0x0)                     =3D 1 (0x1)
sendto(4,"l\0\0\0\0\0\0\0\0\0\0\M-K\0\0\0"...,222,0,NULL,0) =3D 222 (0xde)
getsockopt(4,SOL_SOCKET,SO_TYPE,0xc0d325dc948,0xc0d325dc944) =3D 0 (0x0)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"l\0\0\0\0\0\0\0\0\0\0!\0\0\0\0\0"...,19,0,NULL,0x0) =3D 19 (0x1=
3)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"\^C\^F\0\b\0\0\0\0\0\0\0\0\0\0\0"...,33,0,NULL,0x0) =3D 33 (0x2=
1)
select(5,0x0,{ 4 },0x0,0x0)                     =3D 1 (0x1)
sendto(4,"l\0\0\0\0\0\0\0\0\0\0\M-v\0\0\0"...,265,0,NULL,0) =3D 265 (0x109)
getsockopt(4,SOL_SOCKET,SO_TYPE,0xc0d325dc968,0xc0d325dc964) =3D 0 (0x0)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"l\0\0\0\0\0\0\0\0\0\0V\^A\0\0\0"...,19,0,NULL,0x0) =3D 19 (0x13)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"\^E\^E\0\t\^A\0\0\0\0\0\0\0\0\0"...,342,0,NULL,0x0) =3D 342 (0x=
156)
socket(PF_INET6,SOCK_RAW,IPPROTO_ICMPV6)        =3D 3 (0x3)
socket(PF_INET6,SOCK_RAW,IPPROTO_ICMPV6)        =3D 5 (0x5)
getuid()                                        =3D 0 (0x0)
seteuid(0x0)                                    =3D 0 (0x0)
getuid()                                        =3D 0 (0x0)
setuid(0x0)                                     =3D 0 (0x0)
getpid()                                        =3D 1029 (0x405)
mmap(0x0,1112,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) =3D
29711514341376 (0x1b05c0421000)
minherit(0x1b05c0421000,1112,INHERIT_ZERO)      =3D 0 (0x0)
getrandom("\M-Sp@\^A"6c\M-Z\M-r\M-g\M-xh"...,40,0) =3D 40 (0x28)
setsockopt(3,IPPROTO_IPV6,IPV6_USE_MIN_MTU,0xc0d325df4b0,4) =3D 0 (0x0)
setsockopt(5,IPPROTO_ICMPV6,18,0xc0d325dca70,32) =3D 0 (0x0)
select(5,0x0,{ 4 },0x0,0x0)                     =3D 1 (0x1)
sendto(4,"l\0\0\0\0\0\0\0\0\0\0!\0\0\0\0\0"...,52,0,NULL,0) =3D 52 (0x34)
getsockopt(4,SOL_SOCKET,SO_TYPE,0xc0d325dc948,0xc0d325dc944) =3D 0 (0x0)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"l\0\0\0\0\0\0\0\0\0\0\M-K\0\0\0"...,19,0,NULL,0x0) =3D 19 (0x13)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"\^E\a\0|\0\0\0\0\0\0\0\0\0\0\0\0"...,203,0,NULL,0x0) =3D 203 (0=
xcb)
select(5,0x0,{ 4 },0x0,0x0)                     =3D 1 (0x1)
sendto(4,"l\0\0\0\0\0\0\0\0\0\0\M-(\0\0\0"...,187,0,NULL,0) =3D 187 (0xbb)
getsockopt(4,SOL_SOCKET,SO_TYPE,0xc0d325dc948,0xc0d325dc944) =3D 0 (0x0)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"l\0\0\0\0\0\0\0\0\0\0!\0\0\0\0\0"...,19,0,NULL,0x0) =3D 19 (0x1=
3)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"\^C\^F\0\b\0\0\0\0\0\0\0\0\0\0\0"...,33,0,NULL,0x0) =3D 33 (0x2=
1)
socket(PF_INET6,SOCK_DGRAM,0)                   =3D 6 (0x6)
connect(6,{ AF_INET6 [fcff::b]:10101 },28)      =3D 0 (0x0)
getsockname(6,{ AF_INET6 [fcff::b]:59524 },0xc0d325dca70) =3D 0 (0x0)
close(6)                                        =3D 0 (0x0)
connect(3,{ AF_INET6 [fcff::b]:0 },28)          =3D 0 (0x0)
issetugid()                                     =3D 0 (0x0)
fstatat(AT_FDCWD,"/usr/share/nls/C/libc.cat",0xc0d325dc950,0x0) ERR#2 'No s=
uch
file or directory'
fstatat(AT_FDCWD,"/usr/share/nls/libc/C",0xc0d325dc950,0x0) ERR#2 'No such =
file
or directory'
fstatat(AT_FDCWD,"/usr/local/share/nls/C/libc.cat",0xc0d325dc950,0x0) ERR#2=
 'No
such file or directory'
fstatat(AT_FDCWD,"/usr/local/share/nls/libc/C",0xc0d325dc950,0x0) ERR#2 'No
such file or directory'
cap_enter()                                     =3D 0 (0x0)
cap_rights_limit(0,{ CAP_NONE })                =3D 0 (0x0)
cap_rights_limit(1,{ CAP_PWRITE,CAP_FCNTL,CAP_FSTAT,CAP_EVENT,CAP_IOCTL }) =
=3D 0
(0x0)
cap_ioctls_limit(0x1,0xc0511cd9040,0x3)         =3D 0 (0x0)
cap_fcntls_limit(1,CAP_FCNTL_GETFL)             =3D 0 (0x0)
cap_rights_limit(2,{ CAP_PWRITE,CAP_FCNTL,CAP_FSTAT,CAP_EVENT,CAP_IOCTL }) =
=3D 0
(0x0)
cap_ioctls_limit(0x2,0xc0511cd9040,0x3)         =3D 0 (0x0)
cap_fcntls_limit(2,CAP_FCNTL_GETFL)             =3D 0 (0x0)
cap_rights_limit(5,{ CAP_READ,CAP_SETSOCKOPT,CAP_EVENT }) =3D 0 (0x0)
cap_rights_limit(3,{ CAP_WRITE,CAP_SETSOCKOPT }) =3D 0 (0x0)
setsockopt(5,SOL_SOCKET,SO_RCVBUF,0xc0d325df484,4) =3D 0 (0x0)
setsockopt(5,IPPROTO_IPV6,IPV6_RECVPKTINFO,0xc0d325df4b0,4) =3D 0 (0x0)
setsockopt(5,IPPROTO_IPV6,IPV6_RECVHOPLIMIT,0xc0d325df4b0,4) =3D 0 (0x0)
cap_rights_limit(5,{ CAP_READ,CAP_EVENT })      =3D 0 (0x0)
cap_rights_limit(3,{ CAP_WRITE })               =3D 0 (0x0)
fstat(1,{ mode=3Dcrw--w---- ,inode=3D54,size=3D0,blksize=3D4096 }) =3D 0 (0=
x0)
ioctl(1,TIOCGETA,0xc0d325dbc14)                 =3D 0 (0x0)
select(5,0x0,{ 4 },0x0,0x0)                     =3D 1 (0x1)
sendto(4,"l\0\0\0\0\0\0\0\0\0\0\M-<\0\0\0"...,207,0,NULL,0) =3D 207 (0xcf)
getsockopt(4,SOL_SOCKET,SO_TYPE,0xc0d325dc988,0xc0d325dc984) =3D 0 (0x0)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"l\0\0\0\0\0\0\0\0\0\0A\0\0\0\0\0"...,19,0,NULL,0x0) =3D 19 (0x1=
3)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"\^D\^E\0\b\0\0\0\0\0\0\0\0\0\0\0"...,65,0,NULL,0x0) =3D 65 (0x4=
1)
select(5,0x0,{ 4 },0x0,0x0)                     =3D 1 (0x1)
sendto(4,"l\0\0\0\0\0\0\0\0\0\0\M-<\0\0\0"...,207,0,NULL,0) =3D 207 (0xcf)
getsockopt(4,SOL_SOCKET,SO_TYPE,0xc0d325dc988,0xc0d325dc984) =3D 0 (0x0)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"l\0\0\0\0\0\0\0\0\0\0A\0\0\0\0\0"...,19,0,NULL,0x0) =3D 19 (0x1=
3)
select(5,{ 4 },0x0,0x0,0x0)                     =3D 1 (0x1)
recvfrom(4,"\^D\^E\0\b\0\0\0\0\0\0\0\0\0\0\0"...,65,0,NULL,0x0) =3D 65 (0x4=
1)
PING(56=3D40+8+8 bytes) fcff::b --> fcff::b
write(1,"PING(56=3D40+8+8 bytes) fcff::b --"...,42) =3D 42 (0x2a)
sendmsg(3,{NULL,0,[{"\M^@\0\0\0\^D\^E\0\0\0\0\0\M->3"...,16}],1,{},0,0},0) =
=3D 16
(0x10)
sigaction(SIGINT,{ 0xc0511cdac10 0x0 ss_t },0x0) =3D 0 (0x0)
sigaction(SIGINFO,{ 0xc0511cdac10 0x0 ss_t },0x0) =3D 0 (0x0)
pselect(0x6,0xc0d325df2a0,0x0,0x0,0xc0d325df440,0x0) =3D 0 (0x0)
sendmsg(3,{NULL,0,[{"\M^@\0\0\0\^D\^E\0\^A\0\0\0\M-?7"...,16}],1,{},0,0},0)=
 =3D
16 (0x10)
pselect(0x6,0xc0d325df2a0,0x0,0x0,0xc0d325df440,0x0) =3D 0 (0x0)
sendmsg(3,{NULL,0,[{"\M^@\0\0\0\^D\^E\0\^B\0\0\0\M-@:"...,16}],1,{},0,0},0)=
 =3D
16 (0x10)
pselect(0x6,0xc0d325df2a0,0x0,0x0,0xc0d325df440,0x0) =3D 0 (0x0)
sendmsg(3,{NULL,0,[{"\M^@\0\0\0\^D\^E\0\^C\0\0\0\M-B"...,16}],1,{},0,0},0) =
=3D 16
(0x10)
^Cpselect(0x6,0xc0d325df2a0,0x0,0x0,0xc0d325df440,0x0) ERR#4 'Interrupted
system call'
SIGNAL 2 (SIGINT) code=3DSI_KERNEL
sigreturn(0xc0d325dc3c0)                        EJUSTRETURN
sigaction(SIGINT,{ SIG_IGN 0x0 ss_t },0x0)      =3D 0 (0x0)
sigaction(SIGALRM,{ SIG_IGN 0x0 ss_t },0x0)     =3D 0 (0x0)

write(1,"\n",1)                                 =3D 1 (0x1)
--- fcff::b ping statistics ---
write(1,"--- fcff::b ping statistics ---"...,32) =3D 32 (0x20)
4 packets transmitted, 0 packets received, 100.0% packet loss
write(1,"4 packets transmitted, 0 packets"...,62) =3D 62 (0x3e)
exit(0x2)=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20
process exit, rval =3D 2

root@fbsdshell:/home/admin # ifconfig epair127a
epair127a: flags=3D1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP>
metric 0 mtu 1500
        options=3D8<VLAN_MTU>
        ether 02:ce:c1:a4:28:0a
        inet6 fcff::a prefixlen 64
        inet6 fe80::ce:c1ff:fea4:280a%epair127a prefixlen 64 scopeid 0x3
        groups: epair
        media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)
        status: active
        nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL>
root@fbsdshell:/home/admin # ifconfig epair127b
epair127b: flags=3D1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP>
metric 0 mtu 1500
        options=3D8<VLAN_MTU>
        ether 02:ce:c1:a4:28:0b
        inet6 fcff::b prefixlen 64
        inet6 fe80::ce:c1ff:fea4:280b%epair127b prefixlen 64 scopeid 0x4
        groups: epair
        fib: 127
        media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)
        status: active
        nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL>

--=20
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