题目:在一台MSR 路由器上看到了如下调试信息: *Jan 23 09:17:36:720 2009 H3C RM/6/RMDEBUG:Source Address: 192.168.1.1 *Jan 23 09:17:36:770 2009 H3C RM/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______。
A. 该路由器上运行的不是RIPv1
B. 该路由器上运行的可能是RIPv2
C. 该路由器运行的路由协议支持VLSM
D. 该路由器上运行的可能是OSPF
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