问docker部署sonar-scan，连不上内网的另外一台部署了sonarqube服务的机器？

sonar.projectKey=test1
sonar.projectName=test1
sonar.projectVersion=1.0.0

docker run --rm  -e SONAR_HOST_URL="http://172.17.0.20:9000" -v "$PWD:/usr/src" sonarsource/sonar-scanner-cli

INFO: Scanner configuration file: /opt/sonar-scanner/conf/sonar-scanner.properties
INFO: Project root configuration file: /usr/src/sonar-project.properties
INFO: SonarScanner 4.5.0.2216
INFO: Java 11.0.6 AdoptOpenJDK (64-bit)
INFO: Linux 5.4.39-linuxkit amd64
INFO: User cache: /opt/sonar-scanner/.sonar/cache
ERROR: SonarQube server [http://172.17.0.20] can not be reached
INFO: ------------------------------------------------------------------------
INFO: EXECUTION FAILURE
INFO: ------------------------------------------------------------------------
INFO: Total time: 4.123s
ERROR: Error during SonarScanner execution
INFO: Final Memory: 3M/14M
INFO: ------------------------------------------------------------------------
org.sonarsource.scanner.api.internal.ScannerException: Unable to execute SonarScanner analysis
 at org.sonarsource.scanner.api.internal.IsolatedLauncherFactory.lambda$createLauncher$0(IsolatedLauncherFactory.java:85)
 at java.base/java.security.AccessController.doPrivileged(Native Method)
 at org.sonarsource.scanner.api.internal.IsolatedLauncherFactory.createLauncher(IsolatedLauncherFactory.java:74)
 at org.sonarsource.scanner.api.internal.IsolatedLauncherFactory.createLauncher(IsolatedLauncherFactory.java:70)
 at org.sonarsource.scanner.api.EmbeddedScanner.doStart(EmbeddedScanner.java:185)
 at org.sonarsource.scanner.api.EmbeddedScanner.start(EmbeddedScanner.java:123)
 at org.sonarsource.scanner.cli.Main.execute(Main.java:73)
 at org.sonarsource.scanner.cli.Main.main(Main.java:61)
Caused by: java.lang.IllegalStateException: Fail to get bootstrap index from server
 at org.sonarsource.scanner.api.internal.BootstrapIndexDownloader.getIndex(BootstrapIndexDownloader.java:42)
 at org.sonarsource.scanner.api.internal.JarDownloader.getScannerEngineFiles(JarDownloader.java:58)
 at org.sonarsource.scanner.api.internal.JarDownloader.download(JarDownloader.java:53)
 at org.sonarsource.scanner.api.internal.IsolatedLauncherFactory.lambda$createLauncher$0(IsolatedLauncherFactory.java:76)
 ... 7 more
Caused by: java.net.NoRouteToHostException: No route to host (Host unreachable)
 at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)
 at java.base/java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
 at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
 at java.base/java.net.AbstractPlainSocketImpl.connect(Unknown Source)
 at java.base/java.net.SocksSocketImpl.connect(Unknown Source)
 at java.base/java.net.Socket.connect(Unknown Source)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.platform.Platform.connectSocket(Platform.java:130)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.connection.RealConnection.connectSocket(RealConnection.java:263)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.connection.RealConnection.connect(RealConnection.java:183)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.java:224)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.java:108)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.connection.ExchangeFinder.find(ExchangeFinder.java:88)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.connection.Transmitter.newExchange(Transmitter.java:169)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:41)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:94)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:88)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.RealCall.getResponseWithInterceptorChain(RealCall.java:221)
 at org.sonarsource.scanner.api.internal.shaded.okhttp.RealCall.execute(RealCall.java:81)
 at org.sonarsource.scanner.api.internal.ServerConnection.callUrl(ServerConnection.java:114)
 at org.sonarsource.scanner.api.internal.ServerConnection.downloadString(ServerConnection.java:99)
 at org.sonarsource.scanner.api.internal.BootstrapIndexDownloader.getIndex(BootstrapIndexDownloader.java:39)
 ... 10 more
ERROR: 
ERROR: Re-run SonarScanner using the -X switch to enable full debug logging.

sonar-scanner -Dproject.settings=sonar-project.properties