Unable to bind on Debian 11.5 (kernel: 5.10.0-18-amd64)

[john9527]

Testing on Debian 11 as a possible new server....compiled with debug enabled.

$ sudo BIND_INTERFACE=enp0s31f6 LD_PRELOAD=/usr/lib/bindToInterface.so curl ifconfig.me
connecting to: 192.168.1.1:53
Bound Interface: none. Socket not bound to desired interface (Bound to: none). Binding to interface: enp0s31f6
connecting to: 34.160.111.145:80
Bound Interface: none. Socket not bound to desired interface (Bound to: none). Binding to interface: enp0s31f6
"my_internet_ip"

Actually started trying to bind channels-dvr to a bonded vlan without any success, so dropped back to the curl test case.

[JsBergbau]

Hallo john9527,
these messages are correct. If your software, in this case curl didn't bind the socket then this message is displayed.

BIND_INTERFACE=eth0 DNS_OVERRIDE_IP=8.8.8.8 LD_PRELOAD=./bindToInterface.so curl ifconfig.me

Detected DNS query to: 192.168.178.2:53, overwriting with 8.8.8.8:53
connecting to: 8.8.8.8:53
Bound Interface: none. Socket not bound to desired interface (Bound to: none). Binding to interface: eth0
connecting to: 34.160.111.145:80
Bound Interface: none. Socket not bound to desired interface (Bound to: none). Binding to interface: eth0
<my_ip>

So far it looks correct.
However I don't have bonded interfaces to test with, but it should work as intended.

@JsBergbau have you ever tested it with ping on debian or any other distro? because it doesnt seem to be working however with curl it does

in firewall logs it still shows ens18, the sitaution is different with curls, it shows desired interface, I am using exports not direct implication through command line, export LD_PRELOAD=/fullpath and export BIND_INTERFACE=if

root@debian:~/Desktop# strace exclude ping 10.100.100.1 -c 1 -W 1
execve("/usr/bin/exclude", ["exclude", "ping", "10.100.100.1", "-c", "1", "-W", "1"], 0x7fff052ba7e0 /* 51 vars */) = 0
brk(NULL)                               = 0x55c9255c8000
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f82022bc000
openat(AT_FDCWD, "/root/Desktop/bindToInterface.so", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=15488, ...}) = 0
mmap(NULL, 16584, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f82022b7000
mmap(0x7f82022b8000, 4096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7f82022b8000
mmap(0x7f82022b9000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f82022b9000
mmap(0x7f82022ba000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f82022ba000
close(3)                                = 0
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=120726, ...}) = 0
mmap(NULL, 120726, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8202299000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=182856, ...}) = 0
mmap(NULL, 181160, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f820226c000
mmap(0x7f8202270000, 143360, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4000) = 0x7f8202270000
mmap(0x7f8202293000, 16384, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x27000) = 0x7f8202293000
mmap(0x7f8202297000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2b000) = 0x7f8202297000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=14408, ...}) = 0
mmap(NULL, 16400, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8202267000
mmap(0x7f8202268000, 4096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7f8202268000
mmap(0x7f8202269000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f8202269000
mmap(0x7f820226a000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f820226a000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0p\236\2\0\0\0\0\0"..., 832) = 832
pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 840, 64) = 840
fstat(3, {st_mode=S_IFREG|0755, st_size=2003408, ...}) = 0
pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 840, 64) = 840
mmap(NULL, 2055800, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8202071000
mmap(0x7f8202099000, 1462272, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x28000) = 0x7f8202099000
mmap(0x7f82021fe000, 352256, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x18d000) = 0x7f82021fe000
mmap(0x7f8202254000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1e2000) = 0x7f8202254000
mmap(0x7f820225a000, 52856, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f820225a000
close(3)                                = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f820206f000
arch_prctl(ARCH_SET_FS, 0x7f8202070100) = 0
set_tid_address(0x7f82020703d0)         = 8282
set_robust_list(0x7f82020703e0, 24)     = 0
rseq(0x7f8202070000, 0x20, 0, 0x53053053) = 0
mprotect(0x7f8202254000, 16384, PROT_READ) = 0
mprotect(0x7f820226a000, 4096, PROT_READ) = 0
mprotect(0x7f8202297000, 4096, PROT_READ) = 0
mprotect(0x7f82022ba000, 4096, PROT_READ) = 0
mprotect(0x55c90242b000, 16384, PROT_READ) = 0
mprotect(0x7f82022f8000, 8192, PROT_READ) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
munmap(0x7f8202299000, 120726)          = 0
poll([{fd=0, events=0}, {fd=1, events=0}, {fd=2, events=0}], 3, 0) = 0 (Timeout)
rt_sigaction(SIGPIPE, {sa_handler=SIG_IGN, sa_mask=[PIPE], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f82020b0df0}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
getrandom("\x1b\xa6\x37\x7f\x99\xc0\xb4\xaa", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55c9255c8000
brk(0x55c9255e9000)                     = 0x55c9255e9000
openat(AT_FDCWD, "/proc/self/maps", O_RDONLY|O_CLOEXEC) = 3
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
read(3, "55c9023d4000-55c9023dd000 r--p 0"..., 1024) = 1024
read(3, "                    /usr/lib/x86"..., 1024) = 1024
read(3, "000-7f8202297000 r--p 00027000 0"..., 1024) = 1024
read(3, "0000 00:00 0                    "..., 1024) = 775
close(3)                                = 0
sched_getaffinity(8282, 32, [0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19]) = 8
rt_sigaction(SIGSEGV, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
sigaltstack(NULL, {ss_sp=NULL, ss_flags=SS_DISABLE, ss_size=0}) = 0
mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f82022b4000
mprotect(0x7f82022b4000, 4096, PROT_NONE) = 0
sigaltstack({ss_sp=0x7f82022b5000, ss_flags=0, ss_size=8192}, NULL) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x55c9023f0af0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_SIGINFO, sa_restorer=0x7f82020b0df0}, NULL, 8) = 0
rt_sigaction(SIGBUS, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x55c9023f0af0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_SIGINFO, sa_restorer=0x7f82020b0df0}, NULL, 8) = 0
openat(AT_FDCWD, "/proc/mounts", O_RDONLY|O_CLOEXEC) = 3
statx(3, "", AT_STATX_SYNC_AS_STAT|AT_EMPTY_PATH, STATX_ALL, {stx_mask=STATX_BASIC_STATS|STATX_MNT_ID, stx_attributes=0, stx_mode=S_IFREG|0444, stx_size=0, ...}) = 0
read(3, "sysfs /sys sysfs rw,nosuid,nodev", 32) = 32
read(3, ",noexec,relatime 0 0\nproc /proc ", 32) = 32
read(3, "proc rw,nosuid,nodev,noexec,rela"..., 64) = 64
read(3, "osuid,relatime,size=32129472k,nr"..., 128) = 128
read(3, "=600,ptmxmode=000 0 0\ntmpfs /run"..., 256) = 256
read(3, " rw,size=31457280k,inode64 0 0\nc"..., 512) = 512
read(3, "e,size=5120k,inode64 0 0\ntracefs"..., 1024) = 1024
read(3, "o,nosuid,nodev,noexec,relatime,n"..., 2048) = 463
read(3, "", 1585)                       = 0
close(3)                                = 0
openat(AT_FDCWD, "/sys/fs/cgroup/net_cls/exclusions/cgroup.procs", O_WRONLY|O_CREAT|O_CLOEXEC, 0666) = 3
getpid()                                = 8282
write(3, "8282", 4)                     = 4
close(3)                                = 0
getuid()                                = 0
setuid(0)                               = 0
getgid()                                = 0
setgid(0)                               = 0
execve("/usr/local/sbin/ping", ["ping", "10.100.100.1", "-c", "1", "-W", "1"], 0x7fff37768cd8 /* 51 vars */) = -1 ENOENT (No such file or directory)
execve("/usr/local/bin/ping", ["ping", "10.100.100.1", "-c", "1", "-W", "1"], 0x7fff37768cd8 /* 51 vars */) = -1 ENOENT (No such file or directory)
execve("/usr/sbin/ping", ["ping", "10.100.100.1", "-c", "1", "-W", "1"], 0x7fff37768cd8 /* 51 vars */) = -1 ENOENT (No such file or directory)
execve("/usr/bin/ping", ["ping", "10.100.100.1", "-c", "1", "-W", "1"], 0x7fff37768cd8 /* 51 vars */) = 0
brk(NULL)                               = 0x562891031000
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5c5d71c000
openat(AT_FDCWD, "/root/Desktop/bindToInterface.so", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=15488, ...}) = 0
mmap(NULL, 16584, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5c5d717000
mmap(0x7f5c5d718000, 4096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7f5c5d718000
mmap(0x7f5c5d719000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f5c5d719000
mmap(0x7f5c5d71a000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f5c5d71a000
close(3)                                = 0
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=120726, ...}) = 0
mmap(NULL, 120726, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f5c5d6f9000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libcap.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360y\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=47288, ...}) = 0
mmap(NULL, 45128, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5c5d6ed000
mmap(0x7f5c5d6f0000, 20480, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f5c5d6f0000
mmap(0x7f5c5d6f5000, 8192, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8000) = 0x7f5c5d6f5000
mmap(0x7f5c5d6f7000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa000) = 0x7f5c5d6f7000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libidn2.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=202872, ...}) = 0
mmap(NULL, 204952, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5c5d6ba000
mmap(0x7f5c5d6bc000, 32768, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f5c5d6bc000
mmap(0x7f5c5d6c4000, 159744, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa000) = 0x7f5c5d6c4000
mmap(0x7f5c5d6eb000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x30000) = 0x7f5c5d6eb000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0p\236\2\0\0\0\0\0"..., 832) = 832
pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 840, 64) = 840
fstat(3, {st_mode=S_IFREG|0755, st_size=2003408, ...}) = 0
pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 840, 64) = 840
mmap(NULL, 2055800, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5c5d4c4000
mmap(0x7f5c5d4ec000, 1462272, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x28000) = 0x7f5c5d4ec000
mmap(0x7f5c5d651000, 352256, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x18d000) = 0x7f5c5d651000
mmap(0x7f5c5d6a7000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1e2000) = 0x7f5c5d6a7000
mmap(0x7f5c5d6ad000, 52856, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f5c5d6ad000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libunistring.so.5", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=1996840, ...}) = 0
mmap(NULL, 1997072, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5c5d2dc000
mmap(0x7f5c5d2ef000, 274432, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13000) = 0x7f5c5d2ef000
mmap(0x7f5c5d332000, 1626112, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x56000) = 0x7f5c5d332000
mmap(0x7f5c5d4bf000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1e3000) = 0x7f5c5d4bf000
close(3)                                = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5c5d2da000
arch_prctl(ARCH_SET_FS, 0x7f5c5d2db380) = 0
set_tid_address(0x7f5c5d2db650)         = 8282
set_robust_list(0x7f5c5d2db660, 24)     = 0
rseq(0x7f5c5d2db2c0, 0x20, 0, 0x53053053) = 0
mprotect(0x7f5c5d6a7000, 16384, PROT_READ) = 0
mprotect(0x7f5c5d4bf000, 16384, PROT_READ) = 0
mprotect(0x7f5c5d6eb000, 4096, PROT_READ) = 0
mprotect(0x7f5c5d6f7000, 4096, PROT_READ) = 0
mprotect(0x7f5c5d71a000, 4096, PROT_READ) = 0
mprotect(0x562864c36000, 4096, PROT_READ) = 0
mprotect(0x7f5c5d758000, 8192, PROT_READ) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
munmap(0x7f5c5d6f9000, 120726)          = 0
prctl(PR_CAPBSET_READ, CAP_MAC_OVERRIDE) = 1
prctl(PR_CAPBSET_READ, 0x30 /* CAP_??? */) = -1 EINVAL (Invalid argument)
prctl(PR_CAPBSET_READ, CAP_CHECKPOINT_RESTORE) = 1
prctl(PR_CAPBSET_READ, 0x2c /* CAP_??? */) = -1 EINVAL (Invalid argument)
prctl(PR_CAPBSET_READ, 0x2a /* CAP_??? */) = -1 EINVAL (Invalid argument)
prctl(PR_CAPBSET_READ, 0x29 /* CAP_??? */) = -1 EINVAL (Invalid argument)
getrandom("\x3d\xaa\x9d\xd3\x5a\xba\x73\xcc", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x562891031000
brk(0x562891052000)                     = 0x562891052000
capget({version=_LINUX_CAPABILITY_VERSION_3, pid=0}, NULL) = 0
capget({version=_LINUX_CAPABILITY_VERSION_3, pid=0}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
capget({version=_LINUX_CAPABILITY_VERSION_3, pid=0}, NULL) = 0
capset({version=_LINUX_CAPABILITY_VERSION_3, pid=0}, {effective=0, permitted=1<<CAP_NET_ADMIN|1<<CAP_NET_RAW, inheritable=0}) = 0
prctl(PR_SET_KEEPCAPS, 1)               = 0
getuid()                                = 0
setuid(0)                               = 0
prctl(PR_SET_KEEPCAPS, 0)               = 0
getuid()                                = 0
openat(AT_FDCWD, "/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=3063072, ...}) = 0
mmap(NULL, 3063072, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f5c5ce00000
close(3)                                = 0
capget({version=_LINUX_CAPABILITY_VERSION_3, pid=0}, NULL) = 0
capget({version=_LINUX_CAPABILITY_VERSION_3, pid=0}, {effective=0, permitted=1<<CAP_NET_ADMIN|1<<CAP_NET_RAW, inheritable=0}) = 0
capset({version=_LINUX_CAPABILITY_VERSION_3, pid=0}, {effective=1<<CAP_NET_RAW, permitted=1<<CAP_NET_ADMIN|1<<CAP_NET_RAW, inheritable=0}) = 0
socket(AF_INET, SOCK_DGRAM, IPPROTO_ICMP) = 3
socket(AF_INET6, SOCK_DGRAM, IPPROTO_ICMPV6) = 4
capget({version=_LINUX_CAPABILITY_VERSION_3, pid=0}, NULL) = 0
capget({version=_LINUX_CAPABILITY_VERSION_3, pid=0}, {effective=1<<CAP_NET_RAW, permitted=1<<CAP_NET_ADMIN|1<<CAP_NET_RAW, inheritable=0}) = 0
capset({version=_LINUX_CAPABILITY_VERSION_3, pid=0}, {effective=0, permitted=1<<CAP_NET_ADMIN|1<<CAP_NET_RAW, inheritable=0}) = 0
openat(AT_FDCWD, "/usr/lib/x86_64-linux-gnu/gconv/gconv-modules.cache", O_RDONLY|O_CLOEXEC) = 5
fstat(5, {st_mode=S_IFREG|0644, st_size=27028, ...}) = 0
mmap(NULL, 27028, PROT_READ, MAP_SHARED, 5, 0) = 0x7f5c5d710000
close(5)                                = 0
futex(0x7f5c5d6ac72c, FUTEX_WAKE_PRIVATE, 2147483647) = 0




socket(AF_INET, SOCK_DGRAM, IPPROTO_IP) = 5
fstat(1, {st_mode=S_IFCHR|0600, st_rdev=makedev(0x88, 0), ...}) = 0
write(1, "connecting to: 10.100.100.1:1025"..., 34connecting to: 10.100.100.1:1025 
) = 34
getsockopt(5, SOL_SOCKET, SO_BINDTODEVICE, 0x7ffde5f81c60, [40 => 0]) = 0
write(1, "Bound Interface: none. Socket no"..., 107Bound Interface: none. Socket not bound to desired interface (Bound to: none). Binding to interface: wg123
) = 107

setsockopt(5, SOL_SOCKET, SO_BINDTODEVICE, "wg123\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 40) = 0
connect(5, {sa_family=AF_INET, sin_port=htons(1025), sin_addr=inet_addr("10.100.100.1")}, 16) = 0
getsockname(5, {sa_family=AF_INET, sin_port=htons(41349), sin_addr=inet_addr("10.100.100.5")}, [16]) = 0



close(5)                                = 0


setsockopt(3, SOL_IP, IP_RECVERR, [1], 4) = 0
setsockopt(3, SOL_IP, IP_RECVTTL, [1], 4) = 0
setsockopt(3, SOL_IP, IP_RETOPTS, [1], 4) = 0
setsockopt(3, SOL_SOCKET, SO_SNDBUF, [324], 4) = 0
setsockopt(3, SOL_SOCKET, SO_RCVBUF, [65536], 4) = 0
getsockopt(3, SOL_SOCKET, SO_RCVBUF, [131072], [4]) = 0
write(1, "PING 10.100.100.1 (10.100.100.1)"..., 55PING 10.100.100.1 (10.100.100.1) 56(84) bytes of data.
) = 55
setsockopt(3, SOL_SOCKET, SO_TIMESTAMP_OLD, [1], 4) = 0
setsockopt(3, SOL_SOCKET, SO_SNDTIMEO_OLD, "\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16) = 0
setsockopt(3, SOL_SOCKET, SO_RCVTIMEO_OLD, "\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16) = 0
rt_sigaction(SIGINT, {sa_handler=0x562864c2b500, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f5c5d503df0}, NULL, 8) = 0
rt_sigaction(SIGALRM, {sa_handler=0x562864c2b500, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f5c5d503df0}, NULL, 8) = 0
rt_sigaction(SIGQUIT, {sa_handler=0x562864c2b4e0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f5c5d503df0}, NULL, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
ioctl(1, TCGETS, {c_iflag=ICRNL|IXON|IUTF8, c_oflag=NL0|CR0|TAB0|BS0|VT0|FF0|OPOST|ONLCR, c_cflag=B38400|CS8|CREAD, c_lflag=ISIG|ICANON|ECHO|ECHOE|ECHOK|IEXTEN|ECHOCTL|ECHOKE, ...}) = 0
ioctl(1, TIOCGWINSZ, {ws_row=33, ws_col=214, ws_xpixel=0, ws_ypixel=0}) = 0
capget({version=_LINUX_CAPABILITY_VERSION_3, pid=0}, NULL) = 0
capset({version=_LINUX_CAPABILITY_VERSION_3, pid=0}, {effective=0, permitted=0, inheritable=0}) = 0
sendto(3, "\10\0=@\377\377\0\1!;Uh\0\0\0\0~H\7\0\0\0\0\0\20\21\22\23\24\25\26\27"..., 64, 0, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("10.100.100.1")}, 16) = 64
setitimer(ITIMER_REAL, {it_interval={tv_sec=0, tv_usec=0}, it_value={tv_sec=1, tv_usec=0}}, NULL) = 0
recvmsg(3, {msg_namelen=128}, 0)        = -1 EAGAIN (Resource temporarily unavailable)
--- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---
rt_sigreturn({mask=[]})                 = -1 EAGAIN (Resource temporarily unavailable)
write(1, "\n", 1
)                       = 1
write(1, "--- 10.100.100.1 ping statistics"..., 37--- 10.100.100.1 ping statistics ---
) = 37
write(1, "1 packets transmitted, 0 receive"..., 621 packets transmitted, 0 received, 100% packet loss, time 1ms
) = 62
write(1, "\n", 1
)                       = 1
close(1)                                = 0
close(2)                                = 0
exit_group(1)                           = ?
+++ exited with 1 +++
root@debian:~/Desktop# 

https://github.com/JsBergbau/BindToInterface?tab=readme-ov-file#caution-when-using-root-rights-in-general-especially-with-network-tools-like-nmap

nevermind seems like any allocated PROTO=UDP socket doesnt work