problema de nat en mi pc??

mauricio vargas mauriciovargas en linuxmail.org
Jue Ene 20 14:01:26 CLST 2005


----- Original Message -----
From: "Eduardo Zamorano" <kiddiez en gmail.com>

> 
> iptables -L -n
> 
> manda a la lista su resultado.
> 
linux:/home/visita # iptables -L -n
Chain INPUT (policy DROP)
target     prot opt source               destination
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0
ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED
ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED
LOG        all  --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 LOG flags 6 level 4 prefix `SFW2-IN-ILL-TARGET '
DROP       all  --  0.0.0.0/0            0.0.0.0/0
                                                                               
Chain FORWARD (policy DROP)
target     prot opt source               destination
                                                                               
Chain OUTPUT (policy DROP)
target     prot opt source               destination
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 11 LOG flags 6 level 4 prefix `SFW2-OUT-TRACERT-ATTEMPT '
DROP       icmp --  0.0.0.0/0            0.0.0.0/0           icmp type 11
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           icmp type 3 code 4                                                                                
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           icmp type 3 code 9                                                                                
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           icmp type 3 code 1 0
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           icmp type 3 code 1 3
DROP       icmp --  0.0.0.0/0            0.0.0.0/0           icmp type 3
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0           state NEW,RELATED, ESTABLISHED
LOG        all  --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 LOG flags 6 level 4 prefix `SFW2-OUT-ERROR '
 
Chain forward_dmz (0 references)
target     prot opt source               destination
 
Chain forward_ext (0 references)
target     prot opt source               destination
 
Chain forward_int (0 references)
target     prot opt source               destination
 
Chain input_dmz (0 references)
target     prot opt source               destination
DROP       all  --  0.0.0.0/0            0.0.0.0/0           PKTTYPE = broadcas t
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           icmp type 4
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           icmp type 8
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 0
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 3
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 11
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 12
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 14
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 18
LOG        all  --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 state INVALID LOG flags 6 level 4 prefix `SFW2-INdmz-DROP-DEFLT-INV '
DROP       all  --  0.0.0.0/0            0.0.0.0/0           state INVALID
LOG        tcp  --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 tcp flags:0x16/0x02 LOG flags 6 level 4 prefix `SFW2-INdmz-DROP-DEFLT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 4 LOG flags 6 level 4 prefix `SFW2-INdmz-DROP-ICMP-CRIT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 5 LOG flags 6 level 4 prefix `SFW2-INdmz-DROP-ICMP-CRIT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 8 LOG flags 6 level 4 prefix `SFW2-INdmz-DROP-ICMP-CRIT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 13 LOG flags 6 level 4 prefix `SFW2-INdmz-DROP-ICMP-CRIT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 17 LOG flags 6 level 4 prefix `SFW2-INdmz-DROP-ICMP-CRIT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 2 LOG flags 6 level 4 prefix `SFW2-INdmz-DROP-ICMP-CRIT '
LOG        udp  --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 LOG flags 6 level 4 prefix `SFW2-INdmz-DROP-DEFLT '
DROP       all  --  0.0.0.0/0            0.0.0.0/0
 
Chain input_ext (0 references)
target     prot opt source               destination
DROP       all  --  0.0.0.0/0            0.0.0.0/0           PKTTYPE = broadcas t
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           icmp type 4
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           icmp type 8
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 0
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 3
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 11
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 12
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 14
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 18
LOG        all  --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 state INVALID LOG flags 6 level 4 prefix `SFW2-INext-DROP-DEFLT-INV '
DROP       all  --  0.0.0.0/0            0.0.0.0/0           state INVALID
reject_func  tcp  --  0.0.0.0/0            0.0.0.0/0           tcp dpt:113 stat e NEW
LOG        tcp  --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 tcp flags:0x16/0x02 LOG flags 6 level 4 prefix `SFW2-INext-DROP-DEFLT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 4 LOG flags 6 level 4 prefix `SFW2-INext-DROP-ICMP-CRIT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 5 LOG flags 6 level 4 prefix `SFW2-INext-DROP-ICMP-CRIT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 8 LOG flags 6 level 4 prefix `SFW2-INext-DROP-ICMP-CRIT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 13 LOG flags 6 level 4 prefix `SFW2-INext-DROP-ICMP-CRIT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 17 LOG flags 6 level 4 prefix `SFW2-INext-DROP-ICMP-CRIT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 2 LOG flags 6 level 4 prefix `SFW2-INext-DROP-ICMP-CRIT '
LOG        udp  --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 LOG flags 6 level 4 prefix `SFW2-INext-DROP-DEFLT '
DROP       all  --  0.0.0.0/0            0.0.0.0/0
 
Chain input_int (0 references)
target     prot opt source               destination
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           icmp type 4
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           icmp type 8
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 0
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 3
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 11
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 12
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 14
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           state RELATED,ESTA BLISHED icmp type 18
LOG        all  --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 state INVALID LOG flags 6 level 4 prefix `SFW2-INint-DROP-DEFLT-INV '
DROP       all  --  0.0.0.0/0            0.0.0.0/0           state INVALID
LOG        tcp  --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 tcp flags:0x16/0x02 LOG flags 6 level 4 prefix `SFW2-INint-DROP-DEFLT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 4 LOG flags 6 level 4 prefix `SFW2-INint-DROP-ICMP-CRIT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 5 LOG flags 6 level 4 prefix `SFW2-INint-DROP-ICMP-CRIT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 8 LOG flags 6 level 4 prefix `SFW2-INint-DROP-ICMP-CRIT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 13 LOG flags 6 level 4 prefix `SFW2-INint-DROP-ICMP-CRIT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 17 LOG flags 6 level 4 prefix `SFW2-INint-DROP-ICMP-CRIT '
LOG        icmp --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 icmp type 2 LOG flags 6 level 4 prefix `SFW2-INint-DROP-ICMP-CRIT '
LOG        udp  --  0.0.0.0/0            0.0.0.0/0           limit: avg 3/min b urst 5 LOG flags 6 level 4 prefix `SFW2-INint-DROP-DEFLT '
DROP       all  --  0.0.0.0/0            0.0.0.0/0
 
Chain reject_func (1 references)
target     prot opt source               destination
REJECT     tcp  --  0.0.0.0/0            0.0.0.0/0           reject-with tcp-re set
REJECT     udp  --  0.0.0.0/0            0.0.0.0/0           reject-with icmp-p ort-unreachable
REJECT     all  --  0.0.0.0/0            0.0.0.0/0           reject-with icmp-p roto-unreachable



Por otra parte, Manuel Cano dijo que: "SuSE activa por defecto un software llamado PersonalFirewall que en 
realidad son unas cuantas reglas de iptables". Eso debe estar modificando el paso de paquetes... Miré el yast, pero sólo vi servicio que activar...

Gracias.




Mauricio Vargas P.
Geólogo
MSc en Geología
Usurio Linux # 326558 http://counter.li.org
http://users.quickfox.org/~mauriciovargas/

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