Secure Connect Gateway Virtual Edition (virtuel enhed/SCG-VE): Kan ikke registrere gateway til sikker forbindelse

Registrering af gateway til sikker forbindelse mislykkes med følgende fejl, selvom det lokale system kan oprette forbindelse til Dell Enterprise-serverne via port 443 og 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.

De netværksspor, der registreres af Tcpdump kommando angiver, at SCG-VE kunne forbinde Dell Enterprise-serverne via port 443 og 8443.

Secure Connect Gateway bruger som standard 1500 MTU-størrelse til at oprette forbindelse til Dell Enterprise-servere. Kundens internetudbyder tillader dog ikke størrelsen 1500 MTU.

Udfør nedenstående kommandoer direkte på SCG-VE for at ændre MTU-størrelsen til 1454.
Ændring af MTU-størrelsen på eth0 på SCG-VE løser ikke problemet, da en af dockerne med navnet "esrsde-app" på SCG-VE opretter forbindelse til Dell-backend.

Tjek den aktuelle MTU-størrelse på sae-srs-broen:

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)

Tag et snapshot af VM'en, før der udføres ændringer, som beskrevet nedenfor:

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

Kontrolere:

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)

Til information:
Hvis du ikke kan få adgang til brugergrænsefladen efter ovenstående ændring, skal du enten genstarte VM'en og vente i 4 minutter på, at objektbeholderne initialiseres. Eller genstart tjenesten systemctl genstart esrsve.service.