在一台 MSR 路由器上看到了如下调试信息:*Jan 23 09:17:36:720 2009 H3CRM/6/RMDEBUG:Source Address: 192.168.1.1
*Jan 23 09:17:36:770 2009H3CRM/6/RMDEBUG:Destination Address:224.0.0.5
*Jan 23 09:17:36:871 2009 H3C RM/6/RMDEBUG:Ver< 2, Type: 1, Length: 48.
*Jan 23 09:17:36:972 2009 H3C RM/6/RMDEBUG:Router: 192.168.1.1, Area: 0.0.0.0, Checksum: 62961.
*Jan 23 09:17:37:72 2009 H3C RM/6/RMDEBUG:AuType: 00, Key(ascii): 0 0 0 0 0 0 0 0.
*Jan 23 09:17:37:173 2009 H3C RM/6/RMDEBUG:Net Mask: 255.255.255.0, Hello Int: 10, Option: _E_.
那么根据如上的信息可知 。