Error al compilar proyecto

Hola a todos, me baje un proyecto y cuando lo compilo obtengo el siguiente error, de donde es esa IP? /10.15.51.245
adjunto pom.xml

Muchas gracias.

Scanning for projects...
Downloading: https://maven.vaadin.com/vaadin-prereleases/com/vaadin/vaadin-bom/8.10.3/vaadin-bom-8.10.3.pom

Downloading: http://maven.vaadin.com/vaadin-addons/com/vaadin/vaadin-bom/8.10.3/vaadin-bom-8.10.3.pom

Downloading: https://repo.maven.apache.org/maven2/com/vaadin/vaadin-bom/8.10.3/vaadin-bom-8.10.3.pom

[ERROR]
 Some problems were encountered while processing the POMs:
Non-resolvable import POM: Could not transfer artifact com.vaadin:vaadin-bom:pom:8.10.3 from/to vaadin-prereleases (https://maven.vaadin.com/vaadin-prereleases): Connect to 10.15.51.245:80 
[/10.15.51.245] failed: Connection timed out: connect @ line 36, column 16
 @ 
The build could not read 1 project -> [Help 1]

  
  The project es.cic.taller:escoba:1.0-SNAPSHOT (C:\Users\se20106\Desktop\ESCOBA\Escobaaamia-master\pom.xml) has 1 error
    Non-resolvable import POM: Could not transfer artifact com.vaadin:vaadin-bom:pom:8.10.3 from/to vaadin-prereleases (https://maven.vaadin.com/vaadin-prereleases): Connect to 10.15.51.245:80 
[/10.15.51.245] failed: Connection timed out: connect @ line 36, column 16 -> [Help 2]


To see the full stack trace of the errors, re-run Maven with the -e switch.
Re-run Maven using the -X switch to enable full debug logging.

For more information about the errors and possible solutions, please read the following articles:
[Help 1]
 http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException
[Help 2]
 http://cwiki.apache.org/confluence/display/MAVEN/UnresolvableModelException

18181274.xml (5.14 KB)

Hola, esa es una IP privada, por lo que parecería que la configuración del proxy HTTP de maven es incorrecta.

Sobre cómo modificar esta configuración, puedes consultar:
https://mkyong.com/maven/how-to-enable-proxy-setting-in-maven/
https://developers.perfectomobile.com/pages/viewpage.action?pageId=31103886

Saludos