Wants to send router information to MCAST-NET icmp? tiny intercepted this now why would I want to connect to Mcast?

Posted on 2003-03-18
Medium Priority
Last Modified: 2013-12-04

OrgName:    Internet Assigned Numbers Authority
OrgID:      IANA
Address:    4676 Admiralty Way, Suite 330
City:       Marina del Rey
StateProv:  CA
PostalCode: 90292-6695
Country:    US

NetRange: -
NetName:    MCAST-NET
NetHandle:  NET-224-0-0-0-1
NetType:    IANA Special Use
NameServer: FLAG.EP.NET
NameServer: NS.ISI.EDU
NameServer: NIC.NEAR.NET
Comment:    This block is reserved for special purposes.
Comment:    Please see RFC 3171 for additional information.
RegDate:    1991-05-22
Updated:    2002-09-16

OrgTechHandle: IANA-ARIN
OrgTechName:   Internet Corporation for Assigned Names and Number
OrgTechPhone:  +1-310-823-9358
OrgTechEmail:  res-ip@iana.org

# ARIN WHOIS database, last updated 2003-03-17 20:00
# Enter ? for additional hints on searching ARIN's WHOIS database.
Anyone know who these people/corporation is?
And what is RNAAPP.EXE ?
1,[18/Mar/2003 17:49:54] Rule 'Dial-Up Networking Application': Blocked: In UDP,>localhost:137, Owner: C:\WINDOWS\SYSTEM\RNAAPP.EXE

1,[18/Mar/2003 17:59:54] Rule 'Dial-Up Networking Application': Blocked: In UDP, sta166.suwannee.k12.fl.us []->localhost:137, Owner: C:\WINDOWS\SYSTEM\RNAAPP.EXE

Question by:Joobler
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Accepted Solution

Ghost_Hacker earned 300 total points
ID: 8166120
I've seen this type of question before, so I'll be brief.

Windows is sending out a Muticast packet. If you look up the IP address that packet is sent to, you'll see the "owner" as simply the "whois" database your doing the lookup in. This is normal and simply means that the address is "reservered". (which the record indicates)

Windows sends out a few of these packets at startup. Some have to do with Universal plug and play, others are simply  looking for your network's topology. (without the actual IP address that these packets are addressed to I can't tell you more, but these packets will have adresses that look something like

RNAAPP is part of "dial up networking". It will "talk"  netbios  when you use a dial up connection. You might want to check to see if "client for Microsoft networks" is in your network properties. If it is ,and you don't need it, then remove it. Also using static DNS server addresses can stop rnaapp's "talking". NOTE that this only helps to stop outward bound netbios packets not inward bound ones.

Good luck :-)

Author Comment

ID: 8174041
thx I have seen some strange things and maybe now I will take some more time and look up what tiny is blocking out!

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