Transport-independent Sun RPC implementation (TI-RPC)
Currently, NFS commands use the SunRPC routines provided by the glibc. These routines do not support IPv6 addresses. Ulrich Drepper, who is the maintainer of the glibc, refuses any change in the glibc concerning the RPC. He wants the RPC to become a separate library. Other OS (NetBSD, FreeBSD, Solarix, HP-UX, AIX) have migrated their SunRPC library to a TI-RPC (Transport Independent RPC) implementation. This implementation allows the support of other transports than UDP and TCP over IPv4. FreeBSD provides a TI-RPC library ported from NetBSD with improvements. This library already supports IPv6. So, the FreeBSD release 5.2.1 TI-RPC has been ported to replace the SunRPC of the glibc.