Network Configuration
Hi Guys,
I just subscribed to this list to get more information regarding the Debian
Linux, which kind of lacks a lot of information resources. Most sites are
about RedHat Linux and as much as Debian is giving me problems, I still like
to stick to this distribution instead of moving to RedHat. I have several
questions that I'd like to ask namely :
1. Does Debian have any administrative tools akin to IBM AIX smitty, smit,
wsm (Web System Management) whereby it allows me to administer and manage
the system without having to edit files and typing in complex commands every
time ?
2. This is critical and I am about to start banging my head on the wall,
except that I still holding on to the hope that you guys can help me out
here. Well, currently there is a system within my environment which is
running RedHat 6.x and it has two ethernet adapter (3Com) installed on the
system. This system is running Masquarading (Sp ???), whereby there are two
networks, one is running on 100.100.100.x and the other is running on
255.255.255.x. This system is also acting as the gateway.
A colleague of mine also runs his system on Redhat 6.x and is able to view
two networks on his system also having two ethernet adapters (Generic, dunno
what brand they are).
What I can't understand and which is giving me pain is that my system
configured with Debian 2.1 cannot view the two networks. I have two
ethernet adapters (3Com) installed and if I configure both the cards with
one pointing to the 100.100.100.x network and the other with the
255.255.255.x network, the system will not be able to ping any host out
there (I have already configured the ifconfig and route similar to the RH
6.x systems). But if I disable the 255.255.255.x network, I can ping and
view the other systems. If I do it the other way round, the system cannot
detect any host whatever (Disable 100.100.100.x and enable 255.255.255.x).
I have checked the connections to the ethernet adapters and they are
functioning.
I have updated my kernel to the 2.2.16 enabling masquarading but am still
unable to detect any host when both the ethernet adapters are enabled.
What could be the problem here ?
I've included the ifconfig and route info for the gateway system and also my
colleague's system for your info. My system route and ifconfig information
is as the ones below, but I still can't detect both networks.
$ /sbin/ifconfig
eth0 Link encap:Ethernet HWaddr 00:60:97:C4:FB:97
inet addr:202.190.130.195 Bcast:202.190.130.199
Mask:255.255.255.248
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:12722 errors:0 dropped:0 overruns:0 frame:0
TX packets:12388 errors:0 dropped:0 overruns:0 carrier:0
collisions:1 txqueuelen:100
Interrupt:5 Base address:0xe400
eth1 Link encap:Ethernet HWaddr 00:60:08:91:B1:C5
inet addr:100.100.100.150 Bcast:100.100.100.255
Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:16211 errors:0 dropped:0 overruns:0 frame:0
TX packets:17041 errors:0 dropped:0 overruns:0 carrier:0
collisions:712 txqueuelen:100
Interrupt:9 Base address:0xe800
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:2494 errors:0 dropped:0 overruns:0 frame:0
TX packets:2494 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
$
$ /sbin/route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
tiger.first.com * 255.255.255.255 UH 0 0 0 eth0
100.100.100.150 * 255.255.255.255 UH 0 0 0 eth1
202.190.130.192 * 255.255.255.248 U 0 0 0 eth0
100.100.100.0 * 255.255.255.0 U 0 0 0 eth1
127.0.0.0 * 255.0.0.0 U 0 0 0 lo
default 202.190.130.193 0.0.0.0 UG 0 0 0 eth0
$
--->>> Colleague's system
[jeffrey@penguin jeffrey]$ /sbin/ifconfig
eth0 Link encap:Ethernet HWaddr 00:80:C8:FB:17:4B
inet addr:202.190.130.196 Bcast:202.190.130.199
Mask:255.255.255.248
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:30323 errors:0 dropped:0 overruns:0 frame:0
TX packets:4938 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
Interrupt:10 Base address:0xec80
eth1 Link encap:Ethernet HWaddr 00:60:97:C2:D3:DA
inet addr:100.100.100.111 Bcast:100.100.100.255
Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:69983 errors:0 dropped:0 overruns:0 frame:0
TX packets:11276 errors:0 dropped:0 overruns:0 carrier:0
collisions:6 txqueuelen:100
Interrupt:11 Base address:0xef00
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:32 errors:0 dropped:0 overruns:0 frame:0
TX packets:32 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
[jeffrey@penguin jeffrey]$
[jeffrey@penguin jeffrey]$ /sbin/route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
penguin.first.c * 255.255.255.255 UH 0 0 0 eth0
100.100.100.111 * 255.255.255.255 UH 0 0 0 eth1
202.190.130.192 * 255.255.255.248 U 0 0 0 eth0
100.100.100.0 * 255.255.255.0 U 0 0 0 eth1
127.0.0.0 * 255.0.0.0 U 0 0 0 lo
default 202.190.130.193 0.0.0.0 UG 0 0 0 eth0
[jeffrey@penguin jeffrey]$
Thanks in advance.
Saranjit Singh,
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