出了什麼問題? Frame 77340 (84 bytes on wire, 84 bytes captured) Arrival Time: Feb 25, 2011 15:38:14.291033000 [Time delta from previous captured frame: 0.000063000 seconds] [Time delta from previous displayed frame: 0.000000000 seconds] [Time since reference or first frame: 24908.386747000 seconds] Frame Number: 77340 Frame Length: 84 bytes Capture Length: 84 bytes [Frame is marked: False] [Protocols in frame: eth:ip:udp:dns] Ethernet II, Src: Supermic_7f:85:1c (00:30:48:7f:85:1c), Dst: Cisco_40:44:00 (00:1f:27:40:44:00) Destination: Cisco_40:44:00 (00:1f:27:40:44:00) Address: Cisco_40:44:00 (00:1f:27:40:44:00) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Source: Supermic_7f:85:1c (00:30:48:7f:85:1c) Address: Supermic_7f:85:1c (00:30:48:7f:85:1c) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Type: IP (0x0800) Internet Protocol, Src: 10.16.183.86 (10.16.183.86), Dst: 10.0.80.11 (10.0.80.11) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 70 Identification: 0x9fcb (40907) Flags: 0x04 (Don't Fragment) 0... = Reserved bit: Not set .1.. = Don't fragment: Set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 64 Protocol: UDP (0x11) Header checksum: 0x7f6a [correct] [Good: True] [Bad : False] Source: 10.16.183.86 (10.16.183.86) Destination: 10.0.80.11 (10.0.80.11) User Datagram Protocol, Src Port: 46913 (46913), Dst Port: domain (53) Source port: 46913 (46913) Destination port: domain (53) Length: 50 Checksum: 0x1bb5 [incorrect, should be 0xd5d2 (maybe caused by "UDP checksum offload"?)] [Good Checksum: False] [Bad Checksum: True] Domain Name System (query) Transaction ID: 0x08cd Flags: 0x0100 (Standard query) 0... .... .... .... = Response: Message is a query .000 0... .... .... = Opcode: Standard query (0) .... ..0. .... .... = Truncated: Message is not truncated .... ...1 .... .... = Recursion desired: Do query recursively .... .... .0.. .... = Z: reserved (0) .... .... ...0 .... = Non-authenticated data OK: Non-authenticated data is unacceptable Questions: 1 Answer RRs: 0 Authority RRs: 0 Additional RRs: 0 Queries test.test.com: type A, class IN Name: test.test.com Type: A (Host address) Class: IN (0x0001) Frame 77389 (234 bytes on wire, 234 bytes captured) Arrival Time: Feb 25, 2011 15:38:27.233395000 [Time delta from previous captured frame: 0.000007000 seconds] [Time delta from previous displayed frame: 0.000000000 seconds] [Time since reference or first frame: 24921.329109000 seconds] Frame Number: 77389 Frame Length: 234 bytes Capture Length: 234 bytes [Frame is marked: False] [Protocols in frame: eth:ip:udp:dns] Ethernet II, Src: Cisco_40:44:00 (00:1f:27:40:44:00), Dst: Supermic_7f:85:1c (00:30:48:7f:85:1c) Destination: Supermic_7f:85:1c (00:30:48:7f:85:1c) Address: Supermic_7f:85:1c (00:30:48:7f:85:1c) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Source: Cisco_40:44:00 (00:1f:27:40:44:00) Address: Cisco_40:44:00 (00:1f:27:40:44:00) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Type: IP (0x0800) Internet Protocol, Src: 10.0.80.11 (10.0.80.11), Dst: 10.16.183.86 (10.16.183.86) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 220 Identification: 0x46e2 (18146) Flags: 0x00 0... = Reserved bit: Not set .0.. = Don't fragment: Not set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 62 Protocol: UDP (0x11) Header checksum: 0x19be [correct] [Good: True] [Bad : False] Source: 10.0.80.11 (10.0.80.11) Destination: 10.16.183.86 (10.16.183.86) User Datagram Protocol, Src Port: domain (53), Dst Port: 46913 (46913) Source port: domain (53) Destination port: 46913 (46913) Length: 200 Checksum: 0x29d4 [correct] [Good Checksum: True] [Bad Checksum: False] Domain Name System (response) [Request In: 77340] [Time: 12.942362000 seconds] Transaction ID: 0x08cd Flags: 0x8180 (Standard query response, No error) 1... .... .... .... = Response: Message is a response .000 0... .... .... = Opcode: Standard query (0) .... .0.. .... .... = Authoritative: Server is not an authority for domain .... ..0. .... .... = Truncated: Message is not truncated .... ...1 .... .... = Recursion desired: Do query recursively .... .... 1... .... = Recursion available: Server can do recursive queries .... .... .0.. .... = Z: reserved (0) .... .... ..0. .... = Answer authenticated: Answer/authority portion was not authenticated by the server .... .... .... 0000 = Reply code: No error (0) Questions: 1 Answer RRs: 1 Authority RRs: 2 Additional RRs: 4 Queries test.test.com: type A, class IN Name: test.test.com Type: A (Host address) Class: IN (0x0001) Answers test.test.com: type A, class IN, addr 10.40.80.36 Name: test.test.com Type: A (Host address) Class: IN (0x0001) Time to live: 15 minutes Data length: 4 Addr: 10.40.80.36 Authoritative nameservers test.com: type NS, class IN, ns ns1.softlayer.com Name: test.com Type: NS (Authoritative name server) Class: IN (0x0001) Time to live: 19 hours, 56 minutes, 38 seconds Data length: 16 Name server: ns1.softlayer.com test.com: type NS, class IN, ns ns2.softlayer.com Name: test.com Type: NS (Authoritative name server) Class: IN (0x0001) Time to live: 19 hours, 56 minutes, 38 seconds Data length: 6 Name server: ns2.softlayer.com Additional records ns1.softlayer.com: type A, class IN, addr 67.228.254.4 Name: ns1.softlayer.com Type: A (Host address) Class: IN (0x0001) Time to live: 19 hours, 55 minutes, 26 seconds Data length: 4 Addr: 67.228.254.4 ns1.softlayer.com: type AAAA, class IN, addr 2607:f0d0:0:f:1::1 Name: ns1.softlayer.com Type: AAAA (IPv6 address) Class: IN (0x0001) Time to live: 22 hours, 1 minute, 35 seconds Data length: 16 Addr: 2607:f0d0:0:f:1::1 ns2.softlayer.com: type A, class IN, addr 67.228.255.5 Name: ns2.softlayer.com Type: A (Host address) Class: IN (0x0001) Time to live: 20 hours, 40 seconds Data length: 4 Addr: 67.228.255.5 ns2.softlayer.com: type AAAA, class IN, addr 2607:f0d0:0:f:2::1 Name: ns2.softlayer.com Type: AAAA (IPv6 address) Class: IN (0x0001) Time to live: 20 hours, 18 minutes, 33 seconds Data length: 16 Addr: 2607:f0d0:0:f:2::1 Frame 77390 (262 bytes on wire, 262 bytes captured) Arrival Time: Feb 25, 2011 15:38:27.233403000 [Time delta from previous captured frame: 0.000008000 seconds] [Time delta from previous displayed frame: 0.000008000 seconds] [Time since reference or first frame: 24921.329117000 seconds] Frame Number: 77390 Frame Length: 262 bytes Capture Length: 262 bytes [Frame is marked: False] [Protocols in frame: eth:ip:icmp:ip:udp:dns] Ethernet II, Src: Supermic_7f:85:1c (00:30:48:7f:85:1c), Dst: Cisco_40:44:00 (00:1f:27:40:44:00) Destination: Cisco_40:44:00 (00:1f:27:40:44:00) Address: Cisco_40:44:00 (00:1f:27:40:44:00) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Source: Supermic_7f:85:1c (00:30:48:7f:85:1c) Address: Supermic_7f:85:1c (00:30:48:7f:85:1c) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Type: IP (0x0800) Internet Protocol, Src: 10.16.183.86 (10.16.183.86), Dst: 10.0.80.11 (10.0.80.11) Version: 4 Header length: 20 bytes Differentiated Services Field: 0xc0 (DSCP 0x30: Class Selector 6; ECN: 0x00) 1100 00.. = Differentiated Services Codepoint: Class Selector 6 (0x30) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 248 Identification: 0x65e8 (26088) Flags: 0x00 0... = Reserved bit: Not set .0.. = Don't fragment: Not set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 64 Protocol: ICMP (0x01) Header checksum: 0xf7eb [correct] [Good: True] [Bad : False] Source: 10.16.183.86 (10.16.183.86) Destination: 10.0.80.11 (10.0.80.11) Internet Control Message Protocol Type: 3 (Destination unreachable) Code: 3 (Port unreachable) Checksum: 0x1948 [correct] Internet Protocol, Src: 10.0.80.11 (10.0.80.11), Dst: 10.16.183.86 (10.16.183.86) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 220 Identification: 0x46e2 (18146) Flags: 0x00 0... = Reserved bit: Not set .0.. = Don't fragment: Not set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 62 Protocol: UDP (0x11) Header checksum: 0x19be [correct] [Good: True] [Bad : False] Source: 10.0.80.11 (10.0.80.11) Destination: 10.16.183.86 (10.16.183.86) User Datagram Protocol, Src Port: domain (53), Dst Port: 46913 (46913) Source port: domain (53) Destination port: 46913 (46913) Length: 200 Checksum: 0x29d4 [correct] [Good Checksum: True] [Bad Checksum: False] Domain Name System (response) [Request In: 77340] [Time: 12.942370000 seconds] Transaction ID: 0x08cd Flags: 0x8180 (Standard query response, No error) 1... .... .... .... = Response: Message is a response .000 0... .... .... = Opcode: Standard query (0) .... .0.. .... .... = Authoritative: Server is not an authority for domain .... ..0. .... .... = Truncated: Message is not truncated .... ...1 .... .... = Recursion desired: Do query recursively .... .... 1... .... = Recursion available: Server can do recursive queries .... .... .0.. .... = Z: reserved (0) .... .... ..0. .... = Answer authenticated: Answer/authority portion was not authenticated by the server .... .... .... 0000 = Reply code: No error (0) Questions: 1 Answer RRs: 1 Authority RRs: 2 Additional RRs: 4 Queries test.test.com: type A, class IN Name: test.test.com Type: A (Host address) Class: IN (0x0001) Answers test.test.com: type A, class IN, addr 10.40.80.36 Name: test.test.com Type: A (Host address) Class: IN (0x0001) Time to live: 15 minutes Data length: 4 Addr: 10.40.80.36 Authoritative nameservers test.com: type NS, class IN, ns ns1.softlayer.com Name: test.com Type: NS (Authoritative name server) Class: IN (0x0001) Time to live: 19 hours, 56 minutes, 38 seconds Data length: 16 Name server: ns1.softlayer.com test.com: type NS, class IN, ns ns2.softlayer.com Name: test.com Type: NS (Authoritative name server) Class: IN (0x0001) Time to live: 19 hours, 56 minutes, 38 seconds Data length: 6 Name server: ns2.softlayer.com Additional records ns1.softlayer.com: type A, class IN, addr 67.228.254.4 Name: ns1.softlayer.com Type: A (Host address) Class: IN (0x0001) Time to live: 19 hours, 55 minutes, 26 seconds Data length: 4 Addr: 67.228.254.4 ns1.softlayer.com: type AAAA, class IN, addr 2607:f0d0:0:f:1::1 Name: ns1.softlayer.com Type: AAAA (IPv6 address) Class: IN (0x0001) Time to live: 22 hours, 1 minute, 35 seconds Data length: 16 Addr: 2607:f0d0:0:f:1::1 ns2.softlayer.com: type A, class IN, addr 67.228.255.5 Name: ns2.softlayer.com Type: A (Host address) Class: IN (0x0001) Time to live: 20 hours, 40 seconds Data length: 4 Addr: 67.228.255.5 ns2.softlayer.com: type AAAA, class IN, addr 2607:f0d0:0:f:2::1 Name: ns2.softlayer.com Type: AAAA (IPv6 address) Class: IN (0x0001) Time to live: 20 hours, 18 minutes, 33 seconds Data length: 16 Addr: 2607:f0d0:0:f:2::1 --

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