Gönderen Konu: Broadcast Nedir - Broadcast Nasıl Engellenir ?  (Okunma sayısı 2865 defa)

    Mustafa HAMIT
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Broadcast Nedir - Broadcast Nasıl Engellenir ?
« : Mayıs 27, 2011, 11:22:00 ÖS »
merhabalar

Aşağıdakiler ağı dinleyen bir program çıktısıdır.Bunlardan bazıları broadcast olarak algılanmış. Peki Destination kısmındaki 10.1.255.255 de bir broadcast değil midir? Her broadcast engellenmelimidir?Aşağdakilerden hangisi engellenmeli hangisi engellenmemelidir.teşekkürler.(numaraları kırmızıdır)
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No. Time Source Destination Protocol Info
1 1 0.000000 10.1.36.110 10.1.255.255 BROWSER Host Announcement KIM-B19AB288619, Workstation, Server, NT Workstation, Potential Browser

Frame 1 (243 bytes on wire, 243 bytes captured)
Ethernet II, Src: Micro-St_c3:e9:ab (00:13:d3:c3:e9:ab), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 10.1.36.110 (10.1.36.110), Dst: 10.1.255.255 (10.1.255.255)
User Datagram Protocol, Src Port: netbios-dgm (138), Dst Port: netbios-dgm (138)
NetBIOS Datagram Service
SMB (Server Message Block Protocol)
SMB MailSlot Protocol
Microsoft Windows Browser Protocol

No. Time Source Destination Protocol Info
2 2 0.126174 AlcatelN_81:6d:b6 Broadcast ARP Who has 10.1.37.15? Tell 10.1.1.99

Frame 2 (60 bytes on wire, 60 bytes captured)
Ethernet II, Src: AlcatelN_81:6d:b6 (00:d0:95:81:6d:b6), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Address Resolution Protocol (request)

No. Time Source Destination Protocol Info
3 3 0.135659 10.1.37.24 10.1.255.255 BROWSER Get Backup List Request

Frame 3 (216 bytes on wire, 216 bytes captured)
Ethernet II, Src: Lite-OnC_4d:15:38 (00:02:e3:4d:15:38), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 10.1.37.24 (10.1.37.24), Dst: 10.1.255.255 (10.1.255.255)
User Datagram Protocol, Src Port: netbios-dgm (138), Dst Port: netbios-dgm (138)
NetBIOS Datagram Service
SMB (Server Message Block Protocol)
SMB MailSlot Protocol
Microsoft Windows Browser Protocol

No. Time Source Destination Protocol Info
4 0.135745 10.1.37.24 10.1.255.255 NBNS Name query NB HEPGROUP<1b>

Frame 4 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: Lite-OnC_4d:15:38 (00:02:e3:4d:15:38), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 10.1.37.24 (10.1.37.24), Dst: 10.1.255.255 (10.1.255.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns (137)
NetBIOS Name Service

No. Time Source Destination Protocol Info
5 0.138614 10.1.34.216 10.1.255.255 BROWSER Host Announcement FU-3B1CABEF43C1, Workstation, Server, NT Workstation, Potential Browser

Frame 5 (243 bytes on wire, 243 bytes captured)
Ethernet II, Src: SurecomT_64:5b:97 (00:02:44:64:5b:97), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 10.1.34.216 (10.1.34.216), Dst: 10.1.255.255 (10.1.255.255)
User Datagram Protocol, Src Port: netbios-dgm (138), Dst Port: netbios-dgm (138)
NetBIOS Datagram Service
SMB (Server Message Block Protocol)
SMB MailSlot Protocol
Microsoft Windows Browser Protocol

No. Time Source Destination Protocol Info
6 0.211546 20cdb454.00c0267ed4a7 00000000.ffffffffffff BROWSER Host Announcement ATEHC, Workstation, Server, NT Workstation, Potential Browser

Frame 6 (234 bytes on wire, 234 bytes captured)
IEEE 802.3 Ethernet
Logical-Link Control
Internetwork Packet eXchange
Name Management Protocol over IPX
SMB (Server Message Block Protocol)
SMB MailSlot Protocol
Microsoft Windows Browser Protocol

No. Time Source Destination Protocol Info
7 0.212258 10.1.38.50 10.1.255.255 BROWSER Host Announcement ATEHC, Workstation, Server, NT Workstation, Potential Browser