Lots of new protocols are supported in Ethereal 0.7.8, just released. Included are: RPC, NFS, IGRP, EIGRP, IMAP, LAPD, Q.931, MAPI, NLM, ILMI, SSCOP, Q.2931, VRRP, SAP, HSRP, and Auto-RP. Many others were updated. There's new functionality in the GUI and in the display filters as well.