failing to share internet access between two PCs installed with Debian 3.1
I have two computers, both initially installed with Debian 3.1 (Sarge)
RC3, The computer A has two ethernet ports and computer B has one
eth0 of computer A is connected to the ADSL modem and eth1 of computer
B is connected to eth0 of computer B via a crossover cable.
For Computer A, I set
DHCP assignment (in the 10.x.x.x range) between eth0 and ADSL modem
gateway: not set
For computer B, I set
I also installed ipmasq on computer A. Computer A was able to access
the internet. Both Computer A and B could also ping each other
successfully and computer B was also able to share internet from
However after I reinstalled Computer A with the newly released debian
3.1r0a (with exactly the same settings described above) with ipmasq,
computer B could not obtain internet access any more despite computer
A still had internet access and computer B was also able to share CUPS
and NFS services from computer A successfully. Also, computer B was
able to ping computer A and vice versa.
So what could go wrong here? Is it because some problems with the
firewall and/or ipmasq? How could I fix this problem?