| | | | |S| | | | | | |H| |F | | | | |O|M|o | | |S| |U|U|o | | |H| |L|S|t | |M|O| |D|T|n | |U|U|M| | |o | |S|L|A|N|N|t | |T|D|Y|O|O|t FEATURE |SECTION | | | |T|T|e -------------------------------------------------|--------|-|-|-|-|-|-- | | | | | | | UDP | | | | | | | -------------------------------------------------|--------|-|-|-|-|-|-- | | | | | | | UDP send Port Unreachable |4.1.3.1 | |x| | | | | | | | | | | IP Options in UDP | | | | | | | - Pass rcv'd IP options to applic layer |4.1.3.2 |x| | | | | - Applic layer can specify IP options in Send |4.1.3.2 |x| | | | | - UDP passes IP options down to IP layer |4.1.3.2 |x| | | | | | | | | | | | Pass ICMP msgs up to applic layer |4.1.3.3 |x| | | | | | | | | | | | UDP checksums: | | | | | | | - Able to generate/check checksum |4.1.3.4 |x| | | | | - Silently discard bad checksum |4.1.3.4 |x| | | | | - Sender Option to not generate checksum |4.1.3.4 | | |x| | | - Default is to checksum |4.1.3.4 |x| | | | | - Receiver Option to require checksum |4.1.3.4 | | |x| | | | | | | | | | UDP Multihoming | | | | | | | - Pass spec-dest addr to application |4.1.3.5 |x| | | | | - Applic layer can specify Local IP addr |4.1.3.5 |x| | | | | - Applic layer specify wild Local IP addr |4.1.3.5 |x| | | | | - Applic layer notified of Local IP addr used |4.1.3.5 | |x| | | | | | | | | | | Bad IP src addr silently discarded by UDP/IP |4.1.3.6 |x| | | | | Only send valid IP source address |4.1.3.6 |x| | | | | UDP Application Interface Services | | | | | | | Full IP interface of 3.4 for application |4.1.4 |x| | | | | - Able to spec TTL, TOS, IP opts when send dg |4.1.4 |x| | | | | - Pass received TOS up to applic layer |4.1.4 | | |x| | |