Somos um grupo de estudantes que completam uma unidade de projeto de desenvolvimento na Universidade de Sydney. Nós tivemos dificuldades com o roteamento Linux e gostaríamos muito de sermos apontados na direção certa. Nossa tarefa geral é combinar conexões de internet móvel para aumentar a largura de banda.
OquequeremosTemosváriosroteadorescomsuasprópriassub-redes,todosalimentandoumswitch.Querusarcadaroteadorcomoseuprópriogatewayemumaúnicamáquina.
GostaríamosdeusaroMPTCPparafazerusodecadalinkparaestenderalarguradebandadarede.ORaspberryPinodiagramaacimaestáagindoapenascomoumroteador.NósusamosoiptablesnoRPisparaencaminharpacotesdaethernetparaainternet4G.Porexemplo,temos4roteadorescomsub-rede192.168.101.0/24,192.168.102.0/24,192.168.103.0/24,192.168.104.0/24.Nolaptop,háapenasumNICfísicoeth0.GostaríamosdeconfiguraroMPTCPnoLaptop,usandoNICsvirtuaisouregrasderoteamentoparacadaRaspberryPi.
Oquetentamos?
UsamosipaddraddparaadicionarváriosendereçosIPàeth0física.Emseguida,tentamosadicionarregrasderoteamentocombasenolink . Mas no final todo o tráfego ainda passa pelo roteador padrão.
Já utilizamos com sucesso o MPTCP com placas de rede diferentes (não virtuais) conectadas ao laptop.
O que queremos saber?
Isso é viável?
Nós não tivemos sucesso usando esses métodos, mas isso pode estar relacionado à nossa falta de experiência neste campo.
Se for possível, você poderia nos apontar na direção certa?
Editar
Aqui está nossa tentativa de executar a solução @dirkt:
ian@ians-mof-ish-pc:/etc/netplan$ ip r
default via 192.168.91.1 dev eth0.1
192.168.91.0/24 dev eth0.1 proto kernel scope link src 192.168.91.100
192.168.92.0/24 dev eth0.2 proto kernel scope link src 192.168.92.100
ian@ians-mof-ish-pc:/etc/netplan$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 34:e6:d7:7c:6e:ee brd ff:ff:ff:ff:ff:ff
inet 192.168.92.201/24 brd 192.168.92.255 scope global enp2s0
valid_lft forever preferred_lft forever
inet6 fe80::36e6:d7ff:fe7c:6eee/64 scope link
valid_lft forever preferred_lft forever
4: wlp1s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 70:77:81:c1:07:61 brd ff:ff:ff:ff:ff:ff
5: eth0.1@enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 34:e6:d7:7c:6e:ee brd ff:ff:ff:ff:ff:ff
inet 192.168.91.100/24 scope global eth0.1
valid_lft forever preferred_lft forever
inet6 fe80::36e6:d7ff:fe7c:6eee/64 scope link
valid_lft forever preferred_lft forever
6: eth0.2@enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 34:e6:d7:7c:6e:ee brd ff:ff:ff:ff:ff:ff
inet 192.168.92.100/24 scope global eth0.2
valid_lft forever preferred_lft forever
inet6 fe80::36e6:d7ff:fe7c:6eee/64 scope link
valid_lft forever preferred_lft forever
ian@ians-mof-ish-pc:/etc/netplan$ ip rule show
0: from all lookup local
32764: from 192.168.92.100 lookup 2
32765: from 192.168.91.100 lookup 1
32766: from all lookup main
32767: from all lookup default
ian@ians-mof-ish-pc:/etc/netplan$ ip r show table 1
default via 192.168.91.1 dev eth0.1
192.168.91.0/24 dev eth0.1 scope link
ian@ians-mof-ish-pc:/etc/netplan$ ip r show table 2
default via 192.168.92.1 dev eth0.2
192.168.92.0/24 dev eth0.2 scope link
ian@ians-mof-ish-pc:/etc/netplan$ ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
From 192.168.91.100 icmp_seq=1 Destination Host Unreachable
From 192.168.91.100 icmp_seq=2 Destination Host Unreachable
From 192.168.91.100 icmp_seq=3 Destination Host Unreachable
From 192.168.91.100 icmp_seq=4 Destination Host Unreachable
^C
--- 8.8.8.8 ping statistics ---
4 packets transmitted, 0 received, +4 errors, 100% packet loss, time 3041ms
pipe 3
ian@ians-mof-ish-pc:/etc/netplan$ ping 192.168.91.1
PING 192.168.91.1 (192.168.91.1) 56(84) bytes of data.
From 192.168.91.100 icmp_seq=1 Destination Host Unreachable
From 192.168.91.100 icmp_seq=2 Destination Host Unreachable
From 192.168.91.100 icmp_seq=3 Destination Host Unreachable
^C
--- 192.168.91.1 ping statistics ---
4 packets transmitted, 0 received, +3 errors, 100% packet loss, time 3055ms
pipe 3