INITIAL HOST ROUTING TABLE with no persistent routes C:\Users\chanes>route print IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 x.x.112.1 x.x.112.8 10 x.x.112.0 255.255.240.0 On-link x.x.112.8 266 x.x.112.8 255.255.255.255 On-link x.x.112.8 266 x.x.127.255 255.255.255.255 On-link x.x.112.8 266 127.0.0.0 255.0.0.0 On-link 127.0.0.1 331 127.0.0.1 255.255.255.255 On-link 127.0.0.1 331 127.255.255.255 255.255.255.255 On-link 127.0.0.1 331 168.63.129.16 255.255.255.255 x.x.112.1 x.x.112.8 11 169.254.169.254 255.255.255.255 x.x.112.1 x.x.112.8 11 172.29.80.0 255.255.240.0 On-link 172.29.80.1 5256 172.29.80.1 255.255.255.255 On-link 172.29.80.1 5256 172.29.95.255 255.255.255.255 On-link 172.29.80.1 5256 224.0.0.0 240.0.0.0 On-link 127.0.0.1 331 224.0.0.0 240.0.0.0 On-link 172.29.80.1 5256 224.0.0.0 240.0.0.0 On-link x.x.112.8 266 255.255.255.255 255.255.255.255 On-link 127.0.0.1 331 255.255.255.255 255.255.255.255 On-link 172.29.80.1 5256 255.255.255.255 255.255.255.255 On-link x.x.112.8 266 =========================================================================== Persistent Routes: None RUN IIS CONTAINER C:\Users\chanes>docker run -d mcr.microsoft.com/windows/servercore/iis:windowsservercore-1803 630444e64e079d597fc7c63dbdb2a622443782592ee24f71fc000c32a404643a CONTAINER ROUTING TABLE C:\Users\chanes>docker exec 63 route print IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 172.29.80.1 172.29.84.76 5256 127.0.0.0 255.0.0.0 On-link 127.0.0.1 331 127.0.0.1 255.255.255.255 On-link 127.0.0.1 331 127.255.255.255 255.255.255.255 On-link 127.0.0.1 331 172.29.80.0 255.255.240.0 On-link 172.29.84.76 5256 172.29.84.76 255.255.255.255 On-link 172.29.84.76 5256 172.29.95.255 255.255.255.255 On-link 172.29.84.76 5256 224.0.0.0 240.0.0.0 On-link 127.0.0.1 331 224.0.0.0 240.0.0.0 On-link 172.29.84.76 5256 255.255.255.255 255.255.255.255 On-link 127.0.0.1 331 255.255.255.255 255.255.255.255 On-link 172.29.84.76 5256 =========================================================================== Persistent Routes: Network Address Netmask Gateway Address Metric 0.0.0.0 0.0.0.0 172.29.80.1 Default =========================================================================== ADD PERSISTENT ROUTE to container C:\Users\chanes>docker exec 63 route -p add 169.254.169.0 mask 255.255.255.0 172.29.80.1 OK! SHOWS UP in host routing table C:\Users\chanes>route print IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 x.x.112.1 x.x.112.8 10 x.x.112.0 255.255.240.0 On-link x.x.112.8 266 x.x.112.8 255.255.255.255 On-link x.x.112.8 266 x.x.127.255 255.255.255.255 On-link x.x.112.8 266 127.0.0.0 255.0.0.0 On-link 127.0.0.1 331 127.0.0.1 255.255.255.255 On-link 127.0.0.1 331 127.255.255.255 255.255.255.255 On-link 127.0.0.1 331 168.63.129.16 255.255.255.255 x.x.112.1 x.x.112.8 11 169.254.169.254 255.255.255.255 x.x.112.1 x.x.112.8 11 172.29.80.0 255.255.240.0 On-link 172.29.80.1 5256 172.29.80.1 255.255.255.255 On-link 172.29.80.1 5256 172.29.95.255 255.255.255.255 On-link 172.29.80.1 5256 224.0.0.0 240.0.0.0 On-link 127.0.0.1 331 224.0.0.0 240.0.0.0 On-link 172.29.80.1 5256 224.0.0.0 240.0.0.0 On-link x.x.112.8 266 255.255.255.255 255.255.255.255 On-link 127.0.0.1 331 255.255.255.255 255.255.255.255 On-link 172.29.80.1 5256 255.255.255.255 255.255.255.255 On-link x.x.112.8 266 =========================================================================== Persistent Routes: Network Address Netmask Gateway Address Metric 0.0.0.0 0.0.0.0 172.29.80.1 Default 169.254.169.0 255.255.255.0 172.29.80.1 1 =========================================================================== AND other containers see this new route both existing and newly created C:\Users\chanes>docker run 77e IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 172.29.80.1 172.29.94.192 5256 127.0.0.0 255.0.0.0 On-link 127.0.0.1 331 127.0.0.1 255.255.255.255 On-link 127.0.0.1 331 127.255.255.255 255.255.255.255 On-link 127.0.0.1 331 169.254.169.0 255.255.255.0 172.29.80.1 172.29.94.192 5001 172.29.80.0 255.255.240.0 On-link 172.29.94.192 5256 172.29.94.192 255.255.255.255 On-link 172.29.94.192 5256 172.29.95.255 255.255.255.255 On-link 172.29.94.192 5256 224.0.0.0 240.0.0.0 On-link 127.0.0.1 331 224.0.0.0 240.0.0.0 On-link 172.29.94.192 5256 255.255.255.255 255.255.255.255 On-link 127.0.0.1 331 255.255.255.255 255.255.255.255 On-link 172.29.94.192 5256 =========================================================================== Persistent Routes: Network Address Netmask Gateway Address Metric 0.0.0.0 0.0.0.0 172.29.80.1 Default 169.254.169.0 255.255.255.0 172.29.80.1 1 0.0.0.0 0.0.0.0 172.29.80.1 Default =========================================================================== IPv6 Route Table =========================================================================== Active Routes: If Metric Network Destination Gateway 27 331 ::1/128 On-link 28 5256 fe80::/64 On-link 28 5256 fe80::2859:4f53:115b:c64a/128 On-link 27 331 ff00::/8 On-link 28 5256 ff00::/8 On-link =========================================================================== Persistent Routes: None adding route for Managed Service Identity The route addition failed: The object already exists. MSI StatusCode : 200