Similar Threads:
1.Networking between two PC with both having two Ethernet port
I have two PC with FC2. Each PC has two Ethernet ports. eth0 is 100 MBit
at both PC whereby eth1 can use 1GBit. I can establish the following
connections:
eth0 <-> eth0
eth0 <-> eth1
but I can not ping between the two eth1s.
I configured
PC1:
ifconfig eth0 192.168.100.3
ifconfig eth1 192.168.200.3
ifconfig eth0 netmask 255.255.255.0
ifconfig eth1 netmask 255.255.255.0
PC2:
ifconfig eth0 192.168.100.2
ifconfig eth1 192.168.200.2
ifconfig eth0 netmask 255.255.255.0
ifconfig eth1 netmask 255.255.255.0
Both route and iptables show nothing suspicious. What can I do?
2.Connecting two networks with two linux boxes.
I have 2 networks each with a linux box as the gateway to the internet.
At the moment they are VPN'd together, but are close enough to get a
cable run and I'd like to connct them like this to make it quicker
so each linux box will have 3 nics in it.
My question is possibly a dumb one! But what should the IP for the 3rd
nic in each box be?
The networks are:
network - linux box internal address
Box 1) 10.0.12.x/24 - 10.0.12.1
Box 2) 192.168.12.x/24 - 192.168.12.1
Should the 3rd NIC in the box 1 be on the 192.168.12.x range, and vice
versa but wouldn't that confuse the other network as it would think that
it is a local IP when it wouldn't be.
Should they both be on a different range althogether? And then set the
routing up on each.
ie 3 NICS in each
Box1
internal 10.0.12.1
public 123.456.78.2
"intranet" 10.0.13.1
Box2
internal 192.168.12.1
public 423.243.123.32
"intranet" 10.0.13.2
If it was 2 networks with one linux box it would be easy, just not sure
how you'd connect the two boxes together....
Any advice appreciated!
Cheers
Mark
3.two dsl connections, two routers, dual nics on linux box , want to run two websites
Hello,
I have two dsl connections, with one public ip on each. I have a linux
box with two nic cards.
xx.xx.xx.xx(WAN)---ROUTER(LAN23.123.45.110) ---- MYLINUX
(23.123.45.107) eth1
yy.yy.yy.yy(WAN)---ROUTER(LAN192.182.1.1) ---- MYLINUX
(192.168.1.100) eth0
I have apache listening on both interfaces.
Problem:
1. How do I make the packets route back to the gateway from which they
originate.
Currently the gateway marked as "default" is able to serve content
from the apache. The other one cannot.
I tried adding static routes, but that didn't work.
Any help is appreciated.
Thanks
Jay
---------------------------------------------------------------------
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref
Use Iface
adsl-23-123-45- adsl-23-123-45- 255.255.255.255 UGH 0 0
0 eth1
23.123.45.0 * 255.255.255.0 U 0 0
0 eth1
192.168.1.0 * 255.255.255.0 U 0 0
0 eth0
loopback * 255.0.0.0 U 0 0
0 lo
default 192.168.1.1 0.0.0.0 UG 1 0
0 eth0
eth0 Link encap:Ethernet HWaddr 00:0D:87:57:A0:DE
inet addr:192.168.1.100 Bcast:192.168.1.255
Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3060612 errors:0 dropped:0 overruns:0 frame:0
TX packets:3577217 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:1566982235 (1494.3 Mb) TX bytes:1126616733 (1074.4
Mb)
Interrupt:11 Base address:0xe000
eth1 Link encap:Ethernet HWaddr 00:40:05:39:0E:EA
inet addr:23.123.45.107 Bcast:68.123.24.255
Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:90635 errors:0 dropped:0 overruns:0 frame:0
TX packets:31082 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:23017102 (21.9 Mb) TX bytes:13283751 (12.6 Mb)
Interrupt:11 Base address:0xe000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:11888 errors:0 dropped:0 overruns:0 frame:0
TX packets:11888 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:6920794 (6.6 Mb) TX bytes:6920794 (6.6 Mb)
4.How to set my Linux machine to have two network cards with two IPs
Dear all gurus out there,
I am newbie to Linux and networking.
I have a Red hat linux that used as a Database machine, oracle.
I have 2 network cards that I wish to set to 192.168.0.10 and
192.168.0.11 respectively, the default gw is 192.168.0.1. The
connection of the two IPs coming from 2 different switches (still from
the same router).
My purpose is that : if one of the switches is down, my connection
still up with the other side.
I know switch is hardly "down", but i wish to have full redundancy.
What I did is, I jus set the 2 network cards with the two IPs and I
switch off one of the switches, "poof" the whole network
down..........so, how can it be done ?
Or any other alternatives ?
Thanks.
5.Two NICs, Two networks, secure websites
Hi!
I have a Cisco router (provided by the ISP) that offers 29 usable IP's.
One of the public IP's is set to be the WAN IP of a simple SOHO
Linksys router that then creates a private network 192.168.1.0. There
is a Linux server with Apache on the private network. Port forwarding
on the Linksys router allows SSL access to secure web pages,
unencrypted HTTP, SSH, etc. to the Linux server. This all is working
OK.
I need to have a 2nd SSL site running on the same Linux server. So, I
installed a 2nd NIC and connected it to the Cisco router and used one
of the available public IP's. I cannot connect to the new public IP
(via the new NIC), but can still connect to everything described in the
1st paragraph above.
I can ping out each of the interfaces (e.g. ping -I eth0 yahoo.com and
ping -I eth1 yahoo.com both work). The results of route are:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
AAA.BBB.CCC.160 * 255.255.255.224 U 0 0 0
eth1
192.168.1.0 * 255.255.255.0 U 0 0 0
eth0
127.0.0.0 * 255.0.0.0 U 0 0 0
lo
default 192.168.1.1 0.0.0.0 UG 0 0 0
eth0
On the server, I can do lynx https://192.168.1.2 and lynx
https://AAA.BBB.CCC.164.
>From outside of the server, https://AAA.BBB.CCC.163 works now, but
https://AAA.BBB.CCC.164 does not. What needs to be done to allow
https://AAA.BBB.CCC.164 to work? And/or, what can I do to troubleshoot
the problem?
eth0 Link encap:Ethernet HWaddr 00:40:F4:E9:3F:3D
inet addr:192.168.1.2 Bcast:192.168.1.255
Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6335 errors:0 dropped:0 overruns:0 frame:0
TX packets:5026 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:1373872 (1.3 Mb) TX bytes:2199390 (2.0 Mb)
Interrupt:16 Base address:0xf000
eth1 Link encap:Ethernet HWaddr 00:0C:76:B4:CA:82
inet addr:AAA.BBB.CCC.164 Bcast:AAA.BBB.CCC.191
Mask:255.255.255.224
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1582 errors:0 dropped:0 overruns:0 frame:0
TX packets:2133 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:100305 (97.9 Kb) TX bytes:166007 (162.1 Kb)
Interrupt:21 Base address:0x1000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:209 errors:0 dropped:0 overruns:0 frame:0
TX packets:209 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:22394 (21.8 Kb) TX bytes:22394 (21.8 Kb)
Thanks!
6. iptable rules for two networks connected with two firewalls
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8. Two windows XP Computers connecting through two separate ethernet cards