http — PHP cURL IPv6 connect_time очень медленный при первом запросе

Я пытаюсь создать PHP-скрипт, который генерирует и назначает случайный IPv6-адрес для eth0 и выполняет HTTP-запрос, но кажется, что все адреса необходимо «инициализировать», сначала сделав фиктивный запрос. Однако мне нужно, чтобы IP был готов к HTTP-запросу в течение секунды после создания. После многих часов тестирования и поиска в интернете я не мог понять проблему, поэтому я пришел сюда.

Мой Debian VPS имеет назначенное ему / 64 адресное пространство IPv6.

Чтобы объяснить проблему, я сделал это:

Сначала я вручную назначаю 9 IP

ip addr change 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:1 dev eth0 valid_lft 600 preferred_lft 600
ip addr change 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:2 dev eth0 valid_lft 600 preferred_lft 600
ip addr change 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:3 dev eth0 valid_lft 600 preferred_lft 600
ip addr change 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:4 dev eth0 valid_lft 600 preferred_lft 600
ip addr change 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:5 dev eth0 valid_lft 600 preferred_lft 600
ip addr change 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:6 dev eth0 valid_lft 600 preferred_lft 600
ip addr change 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:7 dev eth0 valid_lft 600 preferred_lft 600
ip addr change 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:8 dev eth0 valid_lft 600 preferred_lft 600
ip addr change 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:9 dev eth0 valid_lft 600 preferred_lft 600

PHP скрипт:

<?php
$URL = "ipv6.whatismyv6.com";

for($i=1; $i<10; $i++)
{
$ch = curl_init();

$IP = "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:{$i}";

curl_setopt($ch, CURLOPT_URL, $URL);

curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLINFO_HEADER_OUT, TRUE);

// Set IPv6
curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V6);
curl_setopt($ch, CURLOPT_INTERFACE, $IP);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 60);
curl_setopt($ch, CURLOPT_TIMEOUT, 120);

print "IP {$IP}\n";

curl_exec($ch);

if(curl_errno($ch))
die(curl_error($ch));

var_dump(curl_getinfo($ch));
print "\nDone for IP {$IP}\n\n";

curl_close($ch);
}

При первом запуске скрипта я получаю этот вывод. Как вы видите, connect_time составляет 32 секунды для каждого, кроме первого запроса. Похоже, что cURL занимает время в течение 30 секунд, прежде чем пытаться подключиться.

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:1
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(2.041753)
["namelookup_time"]=>
float(0.969251)
["connect_time"]=>
float(2.002953)
["pretransfer_time"]=>
float(2.002985)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(708)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(2.04171)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:1"["local_port"]=>
int(46353)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:1

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:2
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(32.02449)
["namelookup_time"]=>
float(3.1E-5)
["connect_time"]=>
float(31.986268)
["pretransfer_time"]=>
float(31.986298)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(45)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(32.024464)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:2"["local_port"]=>
int(53907)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:2

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:3
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(32.080273)
["namelookup_time"]=>
float(1.9E-5)
["connect_time"]=>
float(32.041328)
["pretransfer_time"]=>
float(32.041358)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(45)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(32.080247)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:3"["local_port"]=>
int(56910)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:3

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:4
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(32.124284)
["namelookup_time"]=>
float(1.9E-5)
["connect_time"]=>
float(32.085118)
["pretransfer_time"]=>
float(32.085152)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(45)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(32.124239)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:4"["local_port"]=>
int(59346)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:4

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:5
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(32.074903)
["namelookup_time"]=>
float(1.6E-5)
["connect_time"]=>
float(32.036185)
["pretransfer_time"]=>
float(32.036232)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(45)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(32.074879)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:5"["local_port"]=>
int(50604)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:5

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:6
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(32.425055)
["namelookup_time"]=>
float(0.35623)
["connect_time"]=>
float(32.386056)
["pretransfer_time"]=>
float(32.386088)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(44)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(32.425031)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:6"["local_port"]=>
int(35632)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:6

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:7
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(35.150028)
["namelookup_time"]=>
float(2.0E-5)
["connect_time"]=>
float(35.111304)
["pretransfer_time"]=>
float(35.111331)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(41)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(35.149998)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:7"["local_port"]=>
int(54827)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:7

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:8
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(32.09912)
["namelookup_time"]=>
float(2.0E-5)
["connect_time"]=>
float(32.06125)
["pretransfer_time"]=>
float(32.061287)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(45)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(32.099082)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:8"["local_port"]=>
int(45077)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:8

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:9
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(32.050919)
["namelookup_time"]=>
float(2.4E-5)
["connect_time"]=>
float(32.011934)
["pretransfer_time"]=>
float(32.01196)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(45)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(32.050894)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:9"["local_port"]=>
int(48069)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:9

Я сразу же запустил скрипт после первого запуска, и на этот раз это был выход. Теперь с connect_time все хорошо, и я бы хотел, чтобы так было и в первом запросе.

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:1
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(1.00357)
["namelookup_time"]=>
float(0.93072)
["connect_time"]=>
float(0.966039)
["pretransfer_time"]=>
float(0.966092)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(1440)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(1.003512)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:1"["local_port"]=>
int(42623)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:1

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:2
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(0.074783)
["namelookup_time"]=>
float(1.6E-5)
["connect_time"]=>
float(0.035955)
["pretransfer_time"]=>
float(0.035979)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(19335)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(0.07476)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:2"["local_port"]=>
int(60928)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:2

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:3
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(0.076524)
["namelookup_time"]=>
float(2.2E-5)
["connect_time"]=>
float(0.03672)
["pretransfer_time"]=>
float(0.036757)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(18896)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(0.076497)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:3"["local_port"]=>
int(37292)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:3

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:4
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(0.074629)
["namelookup_time"]=>
float(2.1E-5)
["connect_time"]=>
float(0.035955)
["pretransfer_time"]=>
float(0.036001)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(19375)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(0.074593)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:4"["local_port"]=>
int(53553)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:4

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:5
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(0.074592)
["namelookup_time"]=>
float(2.0E-5)
["connect_time"]=>
float(0.036058)
["pretransfer_time"]=>
float(0.036093)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(19385)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(0.074564)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:5"["local_port"]=>
int(51041)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:5

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:6
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(0.074324)
["namelookup_time"]=>
float(1.9E-5)
["connect_time"]=>
float(0.035745)
["pretransfer_time"]=>
float(0.035784)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(19455)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(0.074282)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:6"["local_port"]=>
int(37542)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:6

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:7
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(0.07241)
["namelookup_time"]=>
float(2.3E-5)
["connect_time"]=>
float(0.035187)
["pretransfer_time"]=>
float(0.035246)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(19969)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(0.072382)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:7"["local_port"]=>
int(50575)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:7

IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:8
array(27) {
["url"]=>
string(26) "HTTP://ipv6.whatismyv6.com"["content_type"]=>
string(9) "text/html"["http_code"]=>
int(200)
["header_size"]=>
int(174)
["request_size"]=>
int(58)
["filetime"]=>
int(-1)
["ssl_verify_result"]=>
int(0)
["redirect_count"]=>
int(0)
["total_time"]=>
float(0.074898)
["namelookup_time"]=>
float(2.1E-5)
["connect_time"]=>
float(0.036041)
["pretransfer_time"]=>
float(0.036079)
["size_upload"]=>
float(0)
["size_download"]=>
float(1446)
["speed_download"]=>
float(19306)
["speed_upload"]=>
float(0)
["download_content_length"]=>
float(1446)
["upload_content_length"]=>
float(0)
["starttransfer_time"]=>
float(0.074861)
["redirect_time"]=>
float(0)
["certinfo"]=>
array(0) {
}
["primary_ip"]=>
string(14) "2001:4810::110"["primary_port"]=>
int(80)
["local_ip"]=>
string(33) "2001:19f0:xxxx:xxxx:xxxx:xxxx:2:8"["local_port"]=>
int(58766)
["redirect_url"]=>
string(0) ""["request_header"]=>
string(58) "GET / HTTP/1.1
Host: ipv6.whatismyv6.com
Accept: */*

"}

Done for IP 2001:19f0:xxxx:xxxx:xxxx:xxxx:2:8

Также,

wget --bind-address=2001:19f0:xxxx:xxxx:xxxx:xxxx:3:1 http://ipv6.whatismyv6.com

работает просто отлично, как первый запрос в сценарии PHP.

Я боролся с этим в течение нескольких дней, поэтому любая помощь очень ценится.