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[MirageOS-devel] Problem http reply with mirage-static and mirage-www


  • To: "mirageos-devel@xxxxxxxxxxxxxxxxxxxx" <mirageos-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Luis Oviedo García <psxlco@xxxxxxxxxxxxxxxx>
  • Date: Sun, 7 Jun 2015 15:23:31 +0100
  • Accept-language: en-US, en-GB
  • Acceptlanguage: en-US, en-GB
  • Delivery-date: Sun, 07 Jun 2015 14:23:48 +0000
  • List-id: Developer list for MirageOS <mirageos-devel.lists.xenproject.org>
  • Thread-index: AQHQoS2HkH2xmA0qD0m0MqP2/Q9Uww==
  • Thread-topic: Problem http reply with mirage-static and mirage-www

Hi,

Is anyone else experiencing problems with the mirage-static or mirage-www (env 
DHCP=true) on the xen backend, to reply http requests from a network element 
other than the host?

Interestingly, when curl from the host the unikernels reply as expected and I 
can fetch the home page.  

Please find below the wireshark capture if it helps, thanks. 
(192.168.1.104=client, 192.168.114=mirage unikernel)


No.     Time           Source                Destination           Protocol 
Length Info
      1 0.000000000    192.168.1.104         192.168.1.114         TCP      74  
   52769→80 [SYN] Seq=0 Win=65535 Len=0 MSS=1460 SACK_PERM=1 TSval=1294364 
TSecr=0 WS=128

Frame 1: 74 bytes on wire (592 bits), 74 bytes captured (592 bits) on interface 
1
Ethernet II, Src: SonyMobi_a4:31:56 (30:75:12:a4:31:56), Dst: c0:ff:ee:c0:ff:ee 
(c0:ff:ee:c0:ff:ee)
Internet Protocol Version 4, Src: 192.168.1.104 (192.168.1.104), Dst: 
192.168.1.114 (192.168.1.114)
Transmission Control Protocol, Src Port: 52769 (52769), Dst Port: 80 (80), Seq: 
0, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
      2 0.000302000    192.168.1.114         192.168.1.104         TCP      62  
   80→52769 [SYN, ACK] Seq=0 Ack=1 Win=65535 Len=0 MSS=1460 WS=4

Frame 2: 62 bytes on wire (496 bits), 62 bytes captured (496 bits) on interface 
1
Ethernet II, Src: c0:ff:ee:c0:ff:ee (c0:ff:ee:c0:ff:ee), Dst: SonyMobi_a4:31:56 
(30:75:12:a4:31:56)
Internet Protocol Version 4, Src: 192.168.1.114 (192.168.1.114), Dst: 
192.168.1.104 (192.168.1.104)
Transmission Control Protocol, Src Port: 80 (80), Dst Port: 52769 (52769), Seq: 
0, Ack: 1, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
      3 0.002555000    192.168.1.104         192.168.1.114         TCP      60  
   52769→80 [ACK] Seq=1 Ack=1 Win=87680 Len=0

Frame 3: 60 bytes on wire (480 bits), 60 bytes captured (480 bits) on interface 
1
Ethernet II, Src: SonyMobi_a4:31:56 (30:75:12:a4:31:56), Dst: c0:ff:ee:c0:ff:ee 
(c0:ff:ee:c0:ff:ee)
Internet Protocol Version 4, Src: 192.168.1.104 (192.168.1.104), Dst: 
192.168.1.114 (192.168.1.114)
Transmission Control Protocol, Src Port: 52769 (52769), Dst Port: 80 (80), Seq: 
1, Ack: 1, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
      4 0.002864000    192.168.1.114         192.168.1.104         TCP      54  
   [TCP ACKed unseen segment] 80→52769 [ACK] Seq=1 Ack=7 Win=262140 Len=0

Frame 4: 54 bytes on wire (432 bits), 54 bytes captured (432 bits) on interface 
1
Ethernet II, Src: c0:ff:ee:c0:ff:ee (c0:ff:ee:c0:ff:ee), Dst: SonyMobi_a4:31:56 
(30:75:12:a4:31:56)
Internet Protocol Version 4, Src: 192.168.1.114 (192.168.1.114), Dst: 
192.168.1.104 (192.168.1.104)
Transmission Control Protocol, Src Port: 80 (80), Dst Port: 52769 (52769), Seq: 
1, Ack: 7, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
      5 0.002936000    192.168.1.104         192.168.1.114         HTTP     191 
   GET / HTTP/1.1 

Frame 5: 191 bytes on wire (1528 bits), 191 bytes captured (1528 bits) on 
interface 1
Ethernet II, Src: SonyMobi_a4:31:56 (30:75:12:a4:31:56), Dst: c0:ff:ee:c0:ff:ee 
(c0:ff:ee:c0:ff:ee)
Internet Protocol Version 4, Src: 192.168.1.104 (192.168.1.104), Dst: 
192.168.1.114 (192.168.1.114)
Transmission Control Protocol, Src Port: 52769 (52769), Dst Port: 80 (80), Seq: 
1, Ack: 1, Len: 137
Hypertext Transfer Protocol

No.     Time           Source                Destination           Protocol 
Length Info
      6 0.003141000    192.168.1.114         192.168.1.104         TCP      54  
   [TCP Dup ACK 4#1] 80→52769 [ACK] Seq=1 Ack=7 Win=262140 Len=0

Frame 6: 54 bytes on wire (432 bits), 54 bytes captured (432 bits) on interface 
1
Ethernet II, Src: c0:ff:ee:c0:ff:ee (c0:ff:ee:c0:ff:ee), Dst: SonyMobi_a4:31:56 
(30:75:12:a4:31:56)
Internet Protocol Version 4, Src: 192.168.1.114 (192.168.1.114), Dst: 
192.168.1.104 (192.168.1.104)
Transmission Control Protocol, Src Port: 80 (80), Dst Port: 52769 (52769), Seq: 
1, Ack: 7, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
      7 0.210859000    192.168.1.104         192.168.1.114         HTTP     185 
   [TCP Retransmission] HTTP/1.1 

Frame 7: 185 bytes on wire (1480 bits), 185 bytes captured (1480 bits) on 
interface 1
Ethernet II, Src: SonyMobi_a4:31:56 (30:75:12:a4:31:56), Dst: c0:ff:ee:c0:ff:ee 
(c0:ff:ee:c0:ff:ee)
Internet Protocol Version 4, Src: 192.168.1.104 (192.168.1.104), Dst: 
192.168.1.114 (192.168.1.114)
Transmission Control Protocol, Src Port: 52769 (52769), Dst Port: 80 (80), Seq: 
7, Ack: 1, Len: 131
Hypertext Transfer Protocol

No.     Time           Source                Destination           Protocol 
Length Info
      8 0.211192000    192.168.1.114         192.168.1.104         TCP      54  
   80→52769 [ACK] Seq=1 Ack=138 Win=262140 Len=0

Frame 8: 54 bytes on wire (432 bits), 54 bytes captured (432 bits) on interface 
1
Ethernet II, Src: c0:ff:ee:c0:ff:ee (c0:ff:ee:c0:ff:ee), Dst: SonyMobi_a4:31:56 
(30:75:12:a4:31:56)
Internet Protocol Version 4, Src: 192.168.1.114 (192.168.1.114), Dst: 
192.168.1.104 (192.168.1.104)
Transmission Control Protocol, Src Port: 80 (80), Dst Port: 52769 (52769), Seq: 
1, Ack: 138, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
      9 24.850234000   192.168.1.104         192.168.1.114         TCP      60  
   52769→80 [FIN, ACK] Seq=138 Ack=1 Win=87680 Len=0

Frame 9: 60 bytes on wire (480 bits), 60 bytes captured (480 bits) on interface 
1
Ethernet II, Src: SonyMobi_a4:31:56 (30:75:12:a4:31:56), Dst: c0:ff:ee:c0:ff:ee 
(c0:ff:ee:c0:ff:ee)
Internet Protocol Version 4, Src: 192.168.1.104 (192.168.1.104), Dst: 
192.168.1.114 (192.168.1.114)
Transmission Control Protocol, Src Port: 52769 (52769), Dst Port: 80 (80), Seq: 
138, Ack: 1, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
     10 25.018303000   192.168.1.114         192.168.1.104         TCP      54  
   [TCP ACKed unseen segment] 80→52769 [ACK] Seq=1 Ack=145 Win=262132 Len=0

Frame 10: 54 bytes on wire (432 bits), 54 bytes captured (432 bits) on 
interface 1
Ethernet II, Src: c0:ff:ee:c0:ff:ee (c0:ff:ee:c0:ff:ee), Dst: SonyMobi_a4:31:56 
(30:75:12:a4:31:56)
Internet Protocol Version 4, Src: 192.168.1.114 (192.168.1.114), Dst: 
192.168.1.104 (192.168.1.104)
Transmission Control Protocol, Src Port: 80 (80), Dst Port: 52769 (52769), Seq: 
1, Ack: 145, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
     11 25.018344000   192.168.1.114         192.168.1.104         TCP      54  
   [TCP Dup ACK 10#1] [TCP ACKed unseen segment] 80→52769 [ACK] Seq=1 Ack=145 
Win=262132 Len=0

Frame 11: 54 bytes on wire (432 bits), 54 bytes captured (432 bits) on 
interface 1
Ethernet II, Src: c0:ff:ee:c0:ff:ee (c0:ff:ee:c0:ff:ee), Dst: SonyMobi_a4:31:56 
(30:75:12:a4:31:56)
Internet Protocol Version 4, Src: 192.168.1.114 (192.168.1.114), Dst: 
192.168.1.104 (192.168.1.104)
Transmission Control Protocol, Src Port: 80 (80), Dst Port: 52769 (52769), Seq: 
1, Ack: 145, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
     12 25.271553000   192.168.1.104         192.168.1.114         TCP      60  
   [TCP Spurious Retransmission] 52769→80 [FIN, ACK] Seq=138 Ack=1 Win=87680 
Len=0

Frame 12: 60 bytes on wire (480 bits), 60 bytes captured (480 bits) on 
interface 1
Ethernet II, Src: SonyMobi_a4:31:56 (30:75:12:a4:31:56), Dst: c0:ff:ee:c0:ff:ee 
(c0:ff:ee:c0:ff:ee)
Internet Protocol Version 4, Src: 192.168.1.104 (192.168.1.104), Dst: 
192.168.1.114 (192.168.1.114)
Transmission Control Protocol, Src Port: 52769 (52769), Dst Port: 80 (80), Seq: 
138, Ack: 1, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
     13 25.271903000   192.168.1.114         192.168.1.104         TCP      54  
   [TCP Dup ACK 10#2] [TCP ACKed unseen segment] 80→52769 [ACK] Seq=1 Ack=145 
Win=262132 Len=0

Frame 13: 54 bytes on wire (432 bits), 54 bytes captured (432 bits) on 
interface 1
Ethernet II, Src: c0:ff:ee:c0:ff:ee (c0:ff:ee:c0:ff:ee), Dst: SonyMobi_a4:31:56 
(30:75:12:a4:31:56)
Internet Protocol Version 4, Src: 192.168.1.114 (192.168.1.114), Dst: 
192.168.1.104 (192.168.1.104)
Transmission Control Protocol, Src Port: 80 (80), Dst Port: 52769 (52769), Seq: 
1, Ack: 145, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
     14 26.116692000   192.168.1.104         192.168.1.114         TCP      60  
   [TCP Spurious Retransmission] 52769→80 [FIN, ACK] Seq=138 Ack=1 Win=87680 
Len=0

Frame 14: 60 bytes on wire (480 bits), 60 bytes captured (480 bits) on 
interface 1
Ethernet II, Src: SonyMobi_a4:31:56 (30:75:12:a4:31:56), Dst: c0:ff:ee:c0:ff:ee 
(c0:ff:ee:c0:ff:ee)
Internet Protocol Version 4, Src: 192.168.1.104 (192.168.1.104), Dst: 
192.168.1.114 (192.168.1.114)
Transmission Control Protocol, Src Port: 52769 (52769), Dst Port: 80 (80), Seq: 
138, Ack: 1, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
     15 26.116963000   192.168.1.114         192.168.1.104         TCP      54  
   [TCP Dup ACK 10#3] [TCP ACKed unseen segment] 80→52769 [ACK] Seq=1 Ack=145 
Win=262132 Len=0

Frame 15: 54 bytes on wire (432 bits), 54 bytes captured (432 bits) on 
interface 1
Ethernet II, Src: c0:ff:ee:c0:ff:ee (c0:ff:ee:c0:ff:ee), Dst: SonyMobi_a4:31:56 
(30:75:12:a4:31:56)
Internet Protocol Version 4, Src: 192.168.1.114 (192.168.1.114), Dst: 
192.168.1.104 (192.168.1.104)
Transmission Control Protocol, Src Port: 80 (80), Dst Port: 52769 (52769), Seq: 
1, Ack: 145, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
     16 27.794019000   192.168.1.104         192.168.1.114         TCP      60  
   [TCP Spurious Retransmission] 52769→80 [FIN, ACK] Seq=138 Ack=1 Win=87680 
Len=0

Frame 16: 60 bytes on wire (480 bits), 60 bytes captured (480 bits) on 
interface 1
Ethernet II, Src: SonyMobi_a4:31:56 (30:75:12:a4:31:56), Dst: c0:ff:ee:c0:ff:ee 
(c0:ff:ee:c0:ff:ee)
Internet Protocol Version 4, Src: 192.168.1.104 (192.168.1.104), Dst: 
192.168.1.114 (192.168.1.114)
Transmission Control Protocol, Src Port: 52769 (52769), Dst Port: 80 (80), Seq: 
138, Ack: 1, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
     17 27.794275000   192.168.1.114         192.168.1.104         TCP      54  
   [TCP Dup ACK 10#4] [TCP ACKed unseen segment] 80→52769 [ACK] Seq=1 Ack=145 
Win=262132 Len=0

Frame 17: 54 bytes on wire (432 bits), 54 bytes captured (432 bits) on 
interface 1
Ethernet II, Src: c0:ff:ee:c0:ff:ee (c0:ff:ee:c0:ff:ee), Dst: SonyMobi_a4:31:56 
(30:75:12:a4:31:56)
Internet Protocol Version 4, Src: 192.168.1.114 (192.168.1.114), Dst: 
192.168.1.104 (192.168.1.104)
Transmission Control Protocol, Src Port: 80 (80), Dst Port: 52769 (52769), Seq: 
1, Ack: 145, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
     18 31.164493000   192.168.1.104         192.168.1.114         TCP      60  
   [TCP Spurious Retransmission] 52769→80 [FIN, ACK] Seq=138 Ack=1 Win=87680 
Len=0

Frame 18: 60 bytes on wire (480 bits), 60 bytes captured (480 bits) on 
interface 1
Ethernet II, Src: SonyMobi_a4:31:56 (30:75:12:a4:31:56), Dst: c0:ff:ee:c0:ff:ee 
(c0:ff:ee:c0:ff:ee)
Internet Protocol Version 4, Src: 192.168.1.104 (192.168.1.104), Dst: 
192.168.1.114 (192.168.1.114)
Transmission Control Protocol, Src Port: 52769 (52769), Dst Port: 80 (80), Seq: 
138, Ack: 1, Len: 0

No.     Time           Source                Destination           Protocol 
Length Info
     19 31.164787000   192.168.1.114         192.168.1.104         TCP      54  
   [TCP Dup ACK 10#5] [TCP ACKed unseen segment] 80→52769 [ACK] Seq=1 Ack=145 
Win=262132 Len=0

Frame 19: 54 bytes on wire (432 bits), 54 bytes captured (432 bits) on 
interface 1
Ethernet II, Src: c0:ff:ee:c0:ff:ee (c0:ff:ee:c0:ff:ee), Dst: SonyMobi_a4:31:56 
(30:75:12:a4:31:56)
Internet Protocol Version 4, Src: 192.168.1.114 (192.168.1.114), Dst: 
192.168.1.104 (192.168.1.104)
Transmission Control Protocol, Src Port: 80 (80), Dst Port: 52769 (52769), Seq: 
1, Ack: 145, Len: 0


Kind regards

Carlos Oviedo



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