Question

DSL Connection

Asked by: ranadastidar

Dear Experts, I have some problem with dsl setup in my red hat linux server. we are using dsl connection pppoe base earlier. now other provider gives us a fixed ip, they provide us one modem, now in my case i m using linux server as internet sharing purpose, there are 2 nic in my server eth0 for lan and eth1 for wan connection, earlier i disable that eth1 when we were using pppoe connection but now when i activate that eth1 i cant ping to my server and i c ant connect to internet too, but if i use a windos pc then net can connected easily. so whats wrong or how do i configure my 2 nics?

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Asked On
2009-07-23 at 00:59:37ID24593753
Tags

Linux

Topics

Linux Networking

,

Broadband Internet

,

DSL Lines / Cable Internet

Participating Experts
1
Points
500
Comments
4

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Answers

 

by: jar3817Posted on 2009-07-23 at 09:46:18ID: 24927269

Did they give you a real static IP, or are they giving you a reservation in DHCP so you get the same address every time?

Edit your /etc/sysconfig/network-scripts/ifcfg-eth1 file change the params of the nic. For a real static IP, all you really need is something like this:

DEVICE=eth1
ONBOOT=yes
BOOTPROTO=static
IPADDR=x.x.x.x
NETMASK=255.255.x.x
GATEWAY=x.x.x.y

Fill in the blanks with the info they give you. Then just restart the nic with

/etc/rc.d/init.d/network restart

 

by: ranadastidarPosted on 2009-07-24 at 01:24:58ID: 24933016

thanks for your solution, actually my isp gave me one router where dhcp enable, when i connect with a windows pc then automaticall ip address alloted and i can use internet. Now thing is that the ip address which that router assign its private address 192.168.1.0 network, whereas isp gave me one fixed public ip. I want to use my linux server as proxy server as well mail server with that fixed ip. so can u tell me what to do with that 2 nic? my eth0 nic is for my lan and eth1 for wan. when i assign 2 ips for 2 nic then i m not able to ping to my server. why its happened? pls help

 

by: jar3817Posted on 2009-07-24 at 05:30:40ID: 24934170

You're trying to use this server as a router, when you already have a router given to you by your ISP. You don't need 2 nics for this situation, just use eth0. You'll need for forward mail traffic (tcp/25) any anything else you want the server to handle to the internal IP on eth0 of the server.  You have to do this on the router the ISP gave you, hopefully they gave you a username/password to get into it.

 

by: ranadastidarPosted on 2009-07-25 at 01:15:10ID: 24941055

sorry friend, i would like to use my server as proxy server becuase there are several rules that i can assign for our internet user. i cant      set lots of rules in router base proxy.

20120131-EE-VQP-002

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