Java Networking¶

General Remarks¶

• Network API works for IPv4 (32-bit adrressing) and IPv6 (128-bit addressing)
• Java only supports TCP/IP and UDP/IP

Java proxy system params¶

• socksProxyHost
• socksProxyPort
• http.proxySet
• http.proxyHost
• http.proxyPort
• https.proxySet
• https.proxyHost
• https.proxyPort
• ftpProxySet
• ftpProxyHost
• ftpProxyPort
• gopherProxySet
• gopherProxyHost
• gopherProxyPort

Special IPv4 segments¶

Internal¶

• 10...*
• 172.17.. - 172.31..
• 192.168..

Local¶

• 127...*

Broadcast¶

• 255.255.255.255 > Packets sent to this address are received by all nodes on the local network, though they are not routed beyond the local network

Special IPv6 segments¶

Local¶

• 0:0:0:0:0:0:0:1 (or ::::::1 or ::1)