I'm testing all of this on the same NIC on the same machine.
ALL on different accounts.
Routing Table info;
===========================================================================
Interface List
13...00 15 17 9f 5f fc ......Intel(R) PRO/1000 EB Network Connection with I/O Acceleration #2
11...00 15 17 9f 5f fd ......Intel(R) PRO/1000 EB Network Connection with I/O Acceleration
1...........................Software Loopback Interface 1
12...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
14...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
15...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface
16...00 00 00 00 00 00 00 e0 Microsoft 6to4 Adapter
===========================================================================
IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 81.19.212.1 81.19.212.50 276
0.0.0.0 0.0.0.0 172.19.0.1 172.19.0.2 266
81.19.212.0 255.255.255.0 On-link 81.19.212.50 276
81.19.212.50 255.255.255.255 On-link 81.19.212.50 276
81.19.212.255 255.255.255.255 On-link 81.19.212.50 276
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
172.19.0.0 255.255.255.0 On-link 172.19.0.2 266
172.19.0.2 255.255.255.255 On-link 172.19.0.2 266
172.19.0.255 255.255.255.255 On-link 172.19.0.2 266
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 81.19.212.50 276
224.0.0.0 240.0.0.0 On-link 172.19.0.2 266
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 81.19.212.50 276
255.255.255.255 255.255.255.255 On-link 172.19.0.2 266
===========================================================================
Persistent Routes:
Network Address Netmask Gateway Address Metric
0.0.0.0 0.0.0.0 81.19.212.1 Default
0.0.0.0 0.0.0.0 172.19.0.1 Default
===========================================================================
IPv6 Route Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
16 1040 ::/0 2002:c058:6301::1
16 1026 ::/0 2002:c058:6301::c058:6301
1 306 ::1/128 On-link
15 58 2001::/32 On-link
15 306 2001:0:4137:9e76:38d9:3472:53ec:fffd/128
On-link
16 1025 2002::/16 On-link
16 281 2002:5113:d432::5113:d432/128
On-link
11 276 fe80::/64 On-link
13 266 fe80::/64 On-link
15 306 fe80::/64 On-link
11 276 fe80::870:9e36:809e:657d/128
On-link
15 306 fe80::38d9:3472:53ec:fffd/128
On-link
13 266 fe80::b5e0:eb54:f9b9:66ca/128
On-link
1 306 ff00::/8 On-link
15 306 ff00::/8 On-link
11 276 ff00::/8 On-link
13 266 ff00::/8 On-link
===========================================================================
Persistent Routes:
None