ADSL ASUS modem nepodporuje forwardovani paketu?

[Lopan]

Toto je vygooglil
Vypada to, ze tento adsl modem nepodporuje forwardovani paketu? Protoze at nastavuju co nastavuju, tak se s tim nemuzu domluvit. Log toho co me prichazi na linoxvy router za nim na INPUT pri pokusu o pripojeni pres telnet/ssh ma na konci zpravy o paketu
INCOMPLETE [8 bytes]
a putty hlasi Connection refused.

Thanks to everyone who put forward their queries and suggestions. Here are
some of the answers back from Asus.



PPTP on the Asus:
This is the answer from RD engineer:
It sounds like the customer want the port mapping function which allows the
incoming PPTP packet being relayed to the specific PC/Server behind.
Unfortunately, our NAT doesn't deal with GRE, which is used for transferring
PPTP packets.
Therefore, we can't satisfy the demand (use NAT with PPTP) though we do have
the port mapping function which supports to establish the PPTP channel with
TCP port 1723.

Our modem supports to establish PPTP channel between PC and
modem.

[Kon]

Zkus ten NAT vypnout nebo použít 1:1 NAT.

[Lopan]

Uz to fachci.

[xvojta]

Uz to fachci.

a vyresil si to nakonec jak?
aby z toho neco meli i ostatni...

[Lopan]

Na tom ADSL modemu je v nat nastavene pouze BIMAP (je to nejaka jejich polozka) - Local address prislusneho kompu a Global address je verejna IP adresa routeru.
A pak na tom linuxovem routeru je v maskarade nastavene natovat vse, krome kompu ze ktereho to budu spravovat.

Ale chci to nastavit tak, ze ted to forwarduje vsechno na linuxovy router tak to bude forwardovat jen port 22 (na to je tam polozka RDP) a maskaradu nastavit na natovat jen kompy z vnitrni site, takze se tam pak pripojim odevsad, ted to je jen z jednoho kompu z venku.

ted vypada to nejak takto
iptables -t nat -A POSTROUTING -o eth0 -d ! "IP kompu z venku" -j MASQUERADE

ale chci to nastavit spise takhle
iptables -t nat -A POSTROUTING -o eth0 -s 192.168.1.x -j MASQUERADE