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Network problem, unable to ping host from windows container


(Kristoferh) #1

Hi

I’m having trouble getting my windows containers (windowservercore) to ping the host when using NAT, other way works fine. In transparent mode this also works fine.

Attaching results from:
Invoke-WebRequest https://aka.ms/Debug-ContainerHost.ps1 -UseBasicParsing | Invoke-Expression
(Apparently not allowed to attach files)

Running:
Windows W 10 Pro, Version 1607 (14393.1944)
Docker 17.12.0-ce, build c97c6d6
Windowsservercore container

Ping from host -> container:

Pinging 172.28.193.132 with 32 bytes of data:
Reply from 172.28.193.132: bytes=32 time=2ms TTL=128
Reply from 172.28.193.132: bytes=32 time=1ms TTL=128
Reply from 172.28.193.132: bytes=32 time<1ms TTL=128
Reply from 172.28.193.132: bytes=32 time=1ms TTL=128

Ping statistics for 172.28.193.132:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 2ms, Average = 1ms

Ping from container -> host:

Pinging 172.28.192.1 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 172.28.192.1:
    Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

Ipconfig executed on host:

Ethernet adapter vEthernet (HNS Internal NIC):

   Connection-specific DNS Suffix  . : 
   Description . . . . . . . . . . . : Hyper-V Virtual Ethernet Adapter
   Physical Address. . . . . . . . . : 00-15-5D-E9-3F-AA
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::a585:6d39:a1b1:d172%36(Preferred) 
   IPv4 Address. . . . . . . . . . . : 172.28.192.1(Preferred) 
   Subnet Mask . . . . . . . . . . . : 255.255.240.0
   Default Gateway . . . . . . . . . : 
   DHCPv6 IAID . . . . . . . . . . . : 603985245
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-21-00-FD-EC-A4-4C-C8-04-BD-FF
   DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
                                       fec0:0:0:ffff::2%1
                                       fec0:0:0:ffff::3%1
   NetBIOS over Tcpip. . . . . . . . : Enabled

Ipconfig executed in container:

Windows IP Configuration

   Host Name . . . . . . . . . . . . : 719c07f08e6f
   Primary Dns Suffix  . . . . . . . : 
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : emea.group.atlascopco.com

Ethernet adapter Ethernet:

   Connection-specific DNS Suffix  . : emea.group.atlascopco.com
   Description . . . . . . . . . . . : Microsoft Hyper-V Network Adapter
   Physical Address. . . . . . . . . : 00-15-5D-E9-3F-30
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::8d8d:cd34:66fe:be39%4(Preferred) 
   IPv4 Address. . . . . . . . . . . : 172.28.193.132(Preferred) 
   Subnet Mask . . . . . . . . . . . : 255.255.240.0
   Default Gateway . . . . . . . . . : 172.28.192.1
   DHCPv6 IAID . . . . . . . . . . . : 67114333
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-21-E8-CF-3F-00-15-5D-E9-3F-30
   DNS Servers . . . . . . . . . . . : 172.28.192.1

   NetBIOS over Tcpip. . . . . . . . : Disabled