Encaminhamento de porta KVM

Question

Eu tenho um host Debian e um convidado ubuntu. Eu quero ligar para o servidor web (porta 80) de fora com a porta 8055. Eu tentei este "hack" link mas não funcionou. Então eu tentei manualmente iptables:

iptables -t nat -A PREROUTING -p tcp -i eth0 --dport 8055 -j DNAT --to-destination 192.168.122.234:80
iptables -A FORWARD -p tcp -d 192.168.122.234 --dport 8080 -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT

Nada funcionou. Não sei mais o que posso compartilhar com você.

root@ms532:~#  iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination
ACCEPT     udp  --  anywhere             anywhere             udp dpt:domain
ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:domain
ACCEPT     udp  --  anywhere             anywhere             udp dpt:bootps
ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:bootps

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination
ACCEPT     all  --  anywhere             192.168.122.0/24     state NEW,RELATED,ESTABLISHED
ACCEPT     tcp  --  anywhere             192.168.122.234      state NEW tcp dpt:9901
ACCEPT     tcp  --  anywhere             192.168.122.234      state NEW tcp dpt:http
ACCEPT     all  --  anywhere             192.168.122.0/24     ctstate RELATED,ESTABLISHED
ACCEPT     all  --  192.168.122.0/24     anywhere
ACCEPT     all  --  anywhere             anywhere
REJECT     all  --  anywhere             anywhere             reject-with icmp-port-unreachable
REJECT     all  --  anywhere             anywhere             reject-with icmp-port-unreachable
ACCEPT     all  --  anywhere             192.168.122.0/24     state NEW,RELATED,ESTABLISHED

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination
ACCEPT     udp  --  anywhere             anywhere             udp dpt:bootpc