3 Network cards in one PC, Routing Problem

This is a discussion on 3 Network cards in one PC, Routing Problem within the Linux Networking forums, part of the Linux Forums category; Hi i set up an Suse 9.0 Server(Router). there are 3 networkcards 1 is connected to my DSL ...


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  #1 (permalink)  
Old 11-10-2003
Christian Hennrich
 
Posts: n/a
Default 3 Network cards in one PC, Routing Problem

Hi

i set up an Suse 9.0 Server(Router). there are 3 networkcards 1 is
connected to my DSL Modem 1(eth1 192.168.1.0), the other is connected to
my LAN (eth0 in 192.168.0.0) und the third one is DLINK DWL 520 Wlan
(wlan0 in 192.168.2.0) Card. I formed a small ad-hoc network where 2
Laptops are connected. the routing between DSL(eth1) und LAN(eth0) is
working. it is not possible to ping the laptop from the server and
back(laptop -> server). the link between laptop and server is
established, if only the wirless network cards are enabled, you can ping
.. it seems that it is a routing problem. i tried around without success.

the wireless configuration is working, i tried it succesful on my campus.

here is the routing of my server and laptop and the ifconfigs
the eth0 in my laptop should not be used. only the wlan0.

laptop:

eth0 Protokoll:Ethernet Hardware Adresse 00:C0:9F:28:9E:D4
inet Adresse:192.168.0.5 Bcast:192.168.0.255
Maske:255.255.255.0
inet6 Adresse: fe80::2c0:9fff:fe28:9ed4/64
Gültigkeitsbereich:Verbindung
UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1865732 errors:0 dropped:179 overruns:0 frame:0
TX packets:646021 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:100
RX bytes:2657957497 (2534.8 Mb) TX bytes:111024089 (105.8 Mb)
Interrupt:11 Basisadresse:0xe200

wlan0 Protokoll:Ethernet Hardware Adresse 00:80:C8:18:6C:87
inet Adresse:192.168.2.2 Bcast:192.168.2.255
Maske:255.255.255.0
inet6 Adresse: fe80::280:c8ff:fe18:6c87/64
Gültigkeitsbereich:Verbindung
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:2 errors:1 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:100
RX bytes:0 (0.0 b) TX bytes:140 (140.0 b)
Interrupt:11 Basisadresse:0x4000

192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0
wlan0
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0



server

eth0 Link encap:Ethernet HWaddr 00:50:04:4D:66:1C
inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::250:4ff:fe4d:661c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:29001 errors:0 dropped:0 overruns:0 frame:0
TX packets:52778 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:4390522 (4.1 Mb) TX bytes:70045663 (66.8 Mb)
Interrupt:10 Base address:0xd400

eth1 Link encap:Ethernet HWaddr 00:00:E8:55:94:54
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::200:e8ff:fe55:9454/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:217040 errors:0 dropped:0 overruns:0 frame:0
TX packets:221420 errors:0 dropped:0 overruns:0 carrier:0
collisions:201 txqueuelen:100
RX bytes:79741762 (76.0 Mb) TX bytes:51339028 (48.9 Mb)
Interrupt:10 Base address:0xcc00

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:964 errors:0 dropped:0 overruns:0 frame:0
TX packets:964 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:150000 (146.4 Kb) TX bytes:150000 (146.4 Kb)

ppp0 Link encap:Point-to-Point Protocol
inet addr:217.229.216.95 P-t-P:217.5.98.35 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1
RX packets:215957 errors:0 dropped:0 overruns:0 frame:0
TX packets:220075 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:74482847 (71.0 Mb) TX bytes:45707572 (43.5 Mb)

wlan0 Link encap:Ethernet HWaddr 00:80:C8:13:26:D1
inet addr:192.168.2.1 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::280:c8ff:fe13:26d1/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:1 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:0 (0.0 b) TX bytes:78 (78.0 b)
Interrupt:5 Base address:0xd000

217.5.98.35 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0
wlan0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 217.5.98.35 0.0.0.0 UG 0 0 0 ppp0


i hope someone is able to help me.

thx

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  #2 (permalink)  
Old 11-12-2003
not availible
 
Posts: n/a
Default Re: 3 Network cards in one PC, Routing Problem

numbers look good, but private subnets are by design non routed,
So look at firewall rules, or DNS settings on the server first.


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  #3 (permalink)  
Old 11-12-2003
Christian Hennrich
 
Posts: n/a
Default Re: 3 Network cards in one PC, Routing Problem

not availible schrieb:
> numbers look good, but private subnets are by design non routed,
> So look at firewall rules, or DNS settings on the server first.


thx to you, i figured out, that it was the firewall and the maquerading.
the wlan0 was not configured to be an internal device. Setting
SuSEFirewall2 to quickmode and evrything was fine. I put the wlan0
device as internal doesn't change anything. but I'm confident to find
the problem and i will post it here.

regards


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