Dúvida no Ex. 3 da Aula 4 - Construindo minha primeira imagem docker

Olá Pessoal,

Fiquei com uma dúvida sobre o redirecionamento de portas no docker.

Para esse curso estou usando uma vm Ubuntu com as seguintes configurações de IP:

pcguest@vmdocker:~ $ ifconfig
docker0   Link encap:Ethernet  HWaddr 02:42:6d:f5:6d:a2
          inet addr:172.17.0.1  Bcast:0.0.0.0  Mask:255.255.0.0
          inet6 addr: fe80::42:6dff:fef5:6da2/64 Scope:Link
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:7013 errors:0 dropped:0 overruns:0 frame:0
          TX packets:18260 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:374301 (374.3 KB)  TX bytes:26048490 (26.0 MB)

eth0      Link encap:Ethernet  HWaddr 08:00:27:0e:30:cf
          inet addr:192.200.8.181  Bcast:192.200.9.255  Mask:255.255.254.0
          inet6 addr: fe80::a00:27ff:fe0e:30cf/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:65003 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8660 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:30769667 (30.7 MB)  TX bytes:719423 (719.4 KB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

Executando o comando:

pcguest@vmdocker:~ $ docker run -it -p 8080:80 ubuntu/apache bash

Tenho o seguinte ip dentro do container:

eth0      Link encap:Ethernet  HWaddr 02:42:ac:11:00:02
          inet addr:172.17.0.2  Bcast:0.0.0.0  Mask:255.255.0.0
          inet6 addr: fe80::42:acff:fe11:2/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:648 (648.0 B)  TX bytes:648 (648.0 B)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

Inicializando o Apache:

root@f63705a3e145:/# apachectl start
AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 172.17.0.2. Set the 'ServerName' directive globally to suppress this message

Neste caso qual o ip que devo usar no meu browser externo?