Secure Connect Gateway Virtual Edition (виртуальное устройство/SCG-VE). Не удается зарегистрировать Secure Connect Gateway

Регистрация Secure Connect Gateway завершается сбоем со следующей ошибкой, несмотря на то, что локальная система может подключиться к корпоративным серверам Dell через порты 443 и 8443.

We cannot connect to the Dell backend. Please check and verify your network configuration, ports 8443 and 443 are required and must be open to esrs3-core.emc.com,esrs3-coredr.emc.com.

connectivityreport.log:

2023-02-12 07:12:41,863 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-1, , ] Host: esrs3-core.emc.com Port: 8443 , IOException ConnectTimeoutException
2023-02-12 07:12:41,863 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-1, , ] Host: esrs3-core.emc.com Port: 8443 , Exception - Connect to esrs3-core.emc.com:8443 [esrs3-core.emc.com/128.221.236.246] failed: Read timed out
2023-02-12 07:12:41,863 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-1, , ] connStatus after skipProxy false
2023-02-12 07:12:41,863 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-1, , ] Proxy not enabled, try bypass proxy 
2023-02-12 07:12:41,863 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-1, , ] Proxy is null so skipProxy()
2023-02-12 07:12:41,872 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-2, , ] Host: esrs3-coredr.emc.com Port: 8443 , IOException ConnectTimeoutException
2023-02-12 07:12:41,872 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-2, , ] Host: esrs3-coredr.emc.com Port: 8443 , Exception - Connect to esrs3-coredr.emc.com:8443 [esrs3-coredr.emc.com/168.159.224.236] failed: Read timed out
2023-02-12 07:12:41,872 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ] connStatus after skipProxy false
2023-02-12 07:12:41,872 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ] Proxy not enabled, try bypass proxy 
2023-02-12 07:12:41,872 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ] Proxy is null so skipProxy()
2023-02-12 07:12:52,068 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-1, , ] Host: esrs3-core.emc.com Port: 8443 , IOException ConnectTimeoutException
2023-02-12 07:12:52,069 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-1, , ] Host: esrs3-core.emc.com Port: 8443 , Exception - Connect to esrs3-core.emc.com:8443 [esrs3-core.emc.com/128.221.236.246] failed: Read timed out
2023-02-12 07:12:52,069 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-1, , ] connStatus after skipProxy false
2023-02-12 07:12:52,069 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-1, , ] Call populateConnectivityBean: host esrs3-core.emc.com port: 8443
2023-02-12 07:12:52,069 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-1, , ] Proxy not enabled, try bypass proxy 
2023-02-12 07:12:52,069 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-1, , ] Proxy is null so skipProxy()
2023-02-12 07:12:52,087 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-2, , ] Host: esrs3-coredr.emc.com Port: 8443 , IOException ConnectTimeoutException
2023-02-12 07:12:52,088 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-2, , ] Host: esrs3-coredr.emc.com Port: 8443 , Exception - Connect to esrs3-coredr.emc.com:8443 [esrs3-coredr.emc.com/168.159.224.236] failed: Read timed out
2023-02-12 07:12:52,088 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ] connStatus after skipProxy false
2023-02-12 07:12:52,088 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ] Call populateConnectivityBean: host esrs3-coredr.emc.com port: 8443
2023-02-12 07:12:52,088 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ] Proxy not enabled, try bypass proxy 
2023-02-12 07:12:52,088 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ] Proxy is null so skipProxy()
2023-02-12 07:12:54,485 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-2, , ] Host: esrs3-coredr.emc.com Port: 443 , IOException SSLHandshakeException
2023-02-12 07:12:54,485 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-2, , ] Host: esrs3-coredr.emc.com Port: 443 , Exception - Received fatal alert: handshake_failure
2023-02-12 07:12:54,485 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-2, , ] Host: esrs3-coredr.emc.com Port: 443 , SSLException or SSLHandshakeException. Consider this as success as just we are checking connectivity to backend core enterprise server.
2023-02-12 07:12:54,485 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ] connStatus after skipProxy true
2023-02-12 07:12:54,485 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ]  avgCount: 1 timeTaken: 2397 host: esrs3-coredr.emc.com 
2023-02-12 07:12:54,485 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ] Proxy not enabled, try bypass proxy 
2023-02-12 07:12:54,486 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ] Proxy is null so skipProxy()
2023-02-12 07:12:54,503 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-1, , ] Host: esrs3-core.emc.com Port: 443 , IOException SSLHandshakeException
2023-02-12 07:12:54,503 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-1, , ] Host: esrs3-core.emc.com Port: 443 , Exception - Received fatal alert: handshake_failure
2023-02-12 07:12:54,503 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-1, , ] Host: esrs3-core.emc.com Port: 443 , SSLException or SSLHandshakeException. Consider this as success as just we are checking connectivity to backend core enterprise server.
2023-02-12 07:12:54,503 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-1, , ] connStatus after skipProxy true
2023-02-12 07:12:54,503 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-1, , ]  avgCount: 1 timeTaken: 2434 host: esrs3-core.emc.com 
2023-02-12 07:12:54,503 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-1, , ] Proxy not enabled, try bypass proxy 
2023-02-12 07:12:54,503 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-1, , ] Proxy is null so skipProxy()
2023-02-12 07:12:56,838 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-2, , ] Host: esrs3-coredr.emc.com Port: 443 , IOException SSLHandshakeException
2023-02-12 07:12:56,838 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-2, , ] Host: esrs3-coredr.emc.com Port: 443 , Exception - Received fatal alert: handshake_failure
2023-02-12 07:12:56,838 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-2, , ] Host: esrs3-coredr.emc.com Port: 443 , SSLException or SSLHandshakeException. Consider this as success as just we are checking connectivity to backend core enterprise server.
2023-02-12 07:12:56,838 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ] connStatus after skipProxy true
2023-02-12 07:12:56,838 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ]  avgCount: 2 timeTaken: 4750 host: esrs3-coredr.emc.com 
2023-02-12 07:12:56,838 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ] Call populateConnectivityBean: host esrs3-coredr.emc.com port: 443
2023-02-12 07:12:56,838 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-2, , ] Time taken: 4750
2023-02-12 07:12:56,838 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-2, , ] avgPingTime: 2375.0
2023-02-12 07:12:56,838 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ] Latch count is   1
2023-02-12 07:12:56,838 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl$GetThread [pool-5-thread-2, , ] ----------------------------------------
2023-02-12 07:12:56,945 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-1, , ] Host: esrs3-core.emc.com Port: 443 , IOException SSLHandshakeException
2023-02-12 07:12:56,946 ERROR com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-1, , ] Host: esrs3-core.emc.com Port: 443 , Exception - Received fatal alert: handshake_failure
2023-02-12 07:12:56,946 INFO com.emc.esrs.connectivityreport.service.ConnectivityReportServiceImpl [pool-5-thread-1, , ] Host: esrs3-core.emc.com Port: 443 , SSLException or SSLHandshakeException. Consider this as success as just we are checking connectivity to backend core enterprise server.

Трассировки сети, захваченные Tcpdump указывает, что SCG-VE может подключаться к корпоративным серверам Dell через порты 443 и 8443.

По умолчанию Secure Connect Gateway использует MTU размером 1500 для подключения к корпоративным серверам Dell. Однако интернет-провайдер заказчика не допускает размер MTU 1500.

Выполните следующие команды непосредственно на SCG-VE, чтобы изменить размер MTU на 1454.
Изменение размера MTU eth0 на SCG-VE не устраняет проблему, так как один из докеров с именем «esrsde-app» в SCG-VE подключается к внутреннему серверу Dell.

Проверьте текущий размер MTU sae-srs-bridge:

ifconfig sae-srs-bridge

# ifconfig sae-srs-bridge
sae-srs-b Link encap:Ethernet  HWaddr 02:42:25:62:85:66
          inet addr:172.18.0.1  Bcast:172.18.0.7  Mask:255.255.255.248
          inet6 addr: fe80::42:25ff:fe62:8566/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2472 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2528 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:12309976 (11.7 Mb)  TX bytes:289066 (282.2 Kb)

Прежде чем вносить какие-либо изменения, сделайте моментальный снимок виртуальной машины, как описано ниже.

docker network disconnect sae-srs-bridge saede-app
docker network disconnect sae-srs-bridge esrsde-app
docker network disconnect sae-srs-bridge esrsalert-app
docker network rm sae-srs-bridge
docker network create --driver bridge --subnet 172.18.0.1/29 --opt com.docker.network.bridge.name=sae-srs-bridge --opt com.docker.network.driver.mtu=1454 sae-srs-bridge
docker network connect sae-srs-bridge esrsde-app
docker network connect sae-srs-bridge saede-app
docker network connect sae-srs-bridge esrsalert-app

Проверять:

ifconfig sae-srs-bridge

# ifconfig sae-srs-bridge
sae-srs-b Link encap:Ethernet  HWaddr 02:42:DE:D8:AB:D2
          inet addr:172.18.0.1  Bcast:172.18.0.7  Mask:255.255.255.248
          inet6 addr: fe80::42:deff:fed8:abd2/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1454  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:746 (746.0 b)

Примечание. Если
не удается получить доступ к пользовательскому интерфейсу после указанного выше изменения, либо ПЕРЕЗАГРУЗИТЕ виртуальную машину, либо подождите 4 минуты для инициализации контейнеров. Или перезапустите сервис systemctl перезапустите esrsve.service.