Networking :: What Is The Exact Definition Of Gateway
Mar 25, 2010I see the term used all over the place of course, just wondering *exactly* what it's used to describe....? Is it just the next hop on your ISP's internet connection?
View 1 Replies
ADVERTISEMENT
Ubuntu Networking :: Exact Meaning Of 'network Is Unreachable'?
Dec 27, 2010I've been having a lot of trouble with getting wireless networking devices to work. I guess I have a lot of company, since mfrs don't seem to be very interested in supporting Linux.It seems that one common symptom is that, when I try to "Ping" using the Terminal, I get "network is unreachable".Does this mean anything specific, or is it a general output whenever the network is not carrying on two way communications? Does it mean that the wireless interface is down? Does it mean that the wireless hardware is not transmitting? Not receiving?
View 3 Replies View RelatedNetworking :: Cannot Ping Gateway Server Within Windows Networking Environment
Jul 11, 2011I am trying to get a Linux (Slackware 13.37) working in a Windows networking environment. The IT support for this organisation does not extend to Linux support, so I'm limited in what help I can get for this.
I'm trying to get to the point where I can get to the internet to download what I need on this Linux machine.
The situation is this (*fictitious addresses used) -My Linux machine uses a fixed IP address (10.100.150.21)
My Windows machine uses a DHCP assigned IP address (10.100.150.213)Both Linux and Windows machine are configured to access the gateway server (10.100.150.1)So, I can ping the Linux machine from the Windows machine and vice-versa.I can ping the gateway machine from the Windows machine.I can browse Windows Shares on the network via SMB from the Linux machine.I CANNOT ping the gateway machine from the Linux machine with the Destination Host Unreachable message being the error message.
For actual internet access I need to access a proxy server but since the Linux machine can't even ping the gateway server, it fails to ping the proxy.Now, I have been told the gateway is a HW based router and for Windows machine they use some software for authentication to connect to the network. This software isn't available for Linux, so that's why I've been told to use a fixed IP address.My experience of networking is pretty basic and most of the Linux setup is done via running Slackware's setup program.
Networking :: Definition: "a Process That Replaces A Series Of Related, Specific Routes In A Route Table With A More Generic Route"
Oct 21, 2010I got this definition:"a process that replaces a series of related, specific routes in a route table with a more generic route." honestly I found it not so clear.. I want to know if this definition is correct and also more details about this subject..
View 1 Replies View RelatedFedora Networking :: Vpnc To Cisco Network / Starting Vpnc From Nm It Performs Exact Same Way And Getting Blackscreen?
Feb 2, 2010In fc10 & fc11 everything worked well with vpnc.
With fc12 vpnc starts allows me to connect to my work site then everything works fine til I try and start a remote desktop connections to a windows client use tsclient. All I get is a blackscreen and my laptop is hung.
At work without the vpnc it works fine if I start the vpnc from nm it performs the exact same way and I get the blackscreen.
I have disable selinux.I also disabled the firewall
there was another gentlemen on here with the same issue.
The only way out is a hard reboot and there are no messages in the logs that say there were any problems.
Networking :: Defining Two Gateway With Different IPs
Aug 2, 2009I have a server with 192.1.9.10 ip address and I want to define two gateways with ip: 192.1.9.4 and 192.1.9.254 on it but I don't know how I can do it. I don't have professional information in linux.
View 1 Replies View RelatedNetworking :: Gateway In Other Subnet
Jan 1, 2011I've rent a server from a Germany data center,They use a single IP as their gateway that is not in range of my servers IP,Strangly server is working well and when I use 'route -n' command the gateway which is in other subnet appears properly./etc/sysconfig/network contains no gateway IP and I don't know how they set the default gateway while after reboot the gateway is the same, also the IP is static and there's now DHCP.I need to know how they did it so I can do the same on my VPSes.
View 1 Replies View RelatedNetworking :: How To Add Gateway (Static IP)
Jul 12, 2011I have 2 lancard eth0 connected to local lan eth1 connected to bsnl broadband connection, I have centos 5.3 here I configure broadband in dial up mode. I am unable to ping outside world and unable to access some site but able to access internet like google etc, configure file is as:
eth0 Link encap:Ethernet HWaddr 00:14:85:96:1C:A7
inet addr:182.x.x.24 Bcast:1182.16.255.255 Mask:255.255.0.0
inet6 addr: fe80::214:85ff:fe96:1ca7/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:736487 errors:0 dropped:0 overruns:0 frame:0
TX packets:859918 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:122617961 (116.9 MiB) TX bytes:772581200 (736.7 MiB)
Interrupt:185 Base address:0x6000
eth1 Link encap:Ethernet HWaddr 00:08:A1:7B:A0:F9
inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::208:a1ff:fe7b:a0f9/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:658246 errors:0 dropped:0 overruns:0 frame:0
TX packets:620456 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:728744445 (694.9 MiB) TX bytes:100768525 (96.1 MiB)
Interrupt:193 Base address:0x4000
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:21198 errors:0 dropped:0 overruns:0 frame:0
TX packets:21198 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:5867015 (5.5 MiB) TX bytes:5867015 (5.5 MiB)
ppp0 Link encap:Point-to-Point Protocol
inet addr:59.xx.xx.xx P-t-P:59.xx.xx.1 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1460 Metric:1
RX packets:793 errors:0 dropped:0 overruns:0 frame:0
TX packets:968 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:528818 (516.4 KiB) TX bytes:148274 (144.7 KiB)
[root@venus ~]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
59.xx.xx.1 * 255.255.255.255 UH 0 0 0 ppp0
192.168.1.0 * 255.255.255.0 U 0 0 0 eth1
169.254.0.0 * 255.255.0.0 U 0 0 0 eth1
182.xx.0.0 * 255.255.0.0 U 0 0 0 eth0
default * 0.0.0.0 U 0 0 0 ppp0
I am unable to ping gateway of ISP IP i.e gateway of static IP.
Networking :: Cannot Connect PC As Gateway Using One NIC
Sep 9, 2010I have one scenerio ,I want to use my Linux PC as residential gateway .I have only one NIC connected to my PC(I cannot connect more) to handle this problem I am using switch . All the devices including my PC are connected using switch (Please refer attached file). I am not sure how can I achieve this ? I am familiar with NAT and DHCP but do not know is this possible in this case?
View 11 Replies View RelatedUbuntu Networking :: Trying To Fix Up A Gateway Computer?
Jan 2, 2010I have a gateway computer that I've been trying to fix up - whenever I try to install Windows XP/2000/Ubuntu, it finds a bunch of errors. I'd really like to get this computer working, it has a 300GB HD, TV inputs, USB ports out the wazoo, and all that other good stuff. Can someone help me with what to do or have a suggestion on what to replace?
I have formatted the hard drive (the Windows installation did it.) The windows installation is to the point where its copying the installation files to the disk, then it gives me an error that it can't find/can't copy the file. The Linux installation just gives me cryptic errors before it even does anything.
I just want to get it to a point where it's usable I really don't care what operating system.
Ubuntu Networking :: FTP Is Not Working Through A Gateway?
Jan 26, 2010FTP is not working through a gateway and I think I found that I need to modprobe ip_masq_ftp. However, when I do try to load ip_masq_ftp I get the error: FATAL: Module ip_masq_ftp.o not found.My question is: how do I get ip_masq_ftp?More questions: Do I have to build a new kernel? If I do need to build a new kernel do I just include the ip_masq_ftp module or are there other modules that I need?
View 1 Replies View RelatedUbuntu Networking :: Gateway With 2 Red Networks?
Jun 21, 2010What i need to do is setup a gateway with 2 red networks, reason being 1 is my internet connection and the other is my bDSL connection for our IP phone system and i need an IP range of traffic routed to the bDSL rather than internet, i can do this on individual PC's but id like to do it at the firewall level so i dont have to configure each machine on the network.
basically i want all traffic to go to internet except for say 203.x.x.x which i want routed to the bDSL router and let it handle it. Ive dome some reading and it seems ipcop and smoothwall cant do it so i was hoping with some tricky work maybe i can get ubuntu to do it for me.
Ubuntu Networking :: Cannot Ping The Gateway
Feb 12, 2011I can ping my IP, and other PC in the same LAN, but I CANNOT ping the gateway on my 10.04LTS ubuntu. Other PC in the same LAN(Ubuntu 10.04LTS) could ping the gateway and my IP. I thought that (1)network cable is OK because I could ping the other PC in the same LAN.(2)Gateway is OK because other PC could ping it. (3)setting of operating system might be somehow wrong.
I have tried to restart the network several times and still not works. I followed the HOW-To debug tips and following is the results. Any suggestions?
1. ifconfig
eth2 Link encap:Ethernet HWaddr 00:1d:7d:aa:d5:d3
inet addr:140.112.61.75 Bcast:140.112.61.255 Mask:255.255.255.0
inet6 addr: fe80::21d:7dff:feaa:d5d3/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[code]....
Networking :: Gateway Changing Hostname?
Mar 14, 2010I am coming across a strange error with my gateway. When I do a "ping", this is what I get below:k-63a5b848c6cb4:~ # ping simba PING simba.gateway.2wire.net (192.168.1.69) 56(84) bytes of data.
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=1 ttl=64 time=0.041 ms
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=2 ttl=64 time=0.029 ms
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=3 ttl=64 time=0.023 ms
[code]....
Networking :: Routing One Gateway To Different Subnets ?
Sep 3, 2010Im having a issue with routing internet traffic from my router two different subnets (vlans).
Theres my setup:-
Server:
Both eth0,1 are running dhcp (two scoopes) that works fine!
The output of route -n is:
I have ip_forwarding on aswell, but i can ping the ip on the server running that dhcp scoope ie ping 192.168.4.1 works great but i just cant get the internet on the clients.
Networking :: 10.112.112.112 Gateway In Wireless Router - What Does It Mean
Aug 16, 2010a wireless router (box) is went stuck, I found that when it is stuck it uses strange IP local address remote address 10.112.112.112, today is also went stuck but this time the gateway was 10.112.112.112. I had to switch off, switch on teh router to function properly. I am using DSL connection normally the gateway is likie that 78.8.... and my IP (dynamic) like 78.8.240..... Is there any default meaning of 10.112.112.112 in teh net connections?
View 14 Replies View RelatedNetworking :: Can't Set Default Gateway To Different Subnet / Do That?
Feb 3, 2011This is slackware 12. I'm trying to share my internet connection (on eth0) with a computer connected to eth1.
eth0 is 192.168.0.101, eth1 is 192.168.1.100 (different subnets).
But when I try to make eth1's default gateway the same as eth0's, see the error I get code...
Networking :: Connection Lost To Gateway?
Oct 8, 2010recently i have combined 2 machines into 1. after doing this, the ping to the new machine stops, for no apparent reason, and consequently all traffic to/from the machine also stops. when using the two machines individually this never happened.Lastly, if i restart the network, it kills everything (like the network just wont restart - it reaches the last interface and hangs), and if i reboot the machine, it seems to be fine for about 3-4hours.has anyone seen anything like this when connecting a large number of hosts to 1 gateway, using linux as the router?
View 2 Replies View RelatedNetworking :: Default Gateway On Different Subnet?
Jan 8, 2010I am in a big confusion and searching an answer to calm down my mind.I have my eth0 has following configuration
` ` `
IP 192.168.1.100
mask 255.255.255.0
[code]....
Networking :: Firewall Cannot Connect Beyond ISP Gateway
May 17, 2009Our firewall (debian) currently has 4 public ip addresses (eth0 1.2.3.4, eth0:0 1.2.3.5, eth0:1 1.2.3.8, eth0:2 1.2.3.9) and 3 internal subnets (eth1 10.1.x.x, eth1:0 10.2.x.x, eth2 10.7.x.x). We are experiencing the following two problems which I believe have the same root cause. 1) The firewall cannot access beyond the isp gateway (1.2.3.1). 2) From externally, we can ping eth0 with no trouble, however, pinging the eth0:0, eth0:1 and eth0:2 interfaces have results similar to the following:
Code:
PING 1.2.3.8 (1.2.3.8) 56(84) bytes of data.
64 bytes from 1.2.3.8: icmp_seq=2 ttl=57 time=59.0 ms
64 bytes from 1.2.3.8: icmp_seq=2 ttl=57 time=63.0 ms (DUP!)
64 bytes from 1.2.3.8: icmp_seq=13 ttl=57 time=59.3 ms
64 bytes from 1.2.3.8: icmp_seq=13 ttl=57 time=63.0 ms (DUP!)
64 bytes from 1.2.3.8: icmp_seq=24 ttl=57 time=62.0 ms
64 bytes from 1.2.3.8: icmp_seq=24 ttl=57 time=65.6 ms (DUP!)
I get the feeling that I'm missing something obvious, especially since all traffic on the internal subnets can access externally as normal.
Networking :: Gateway Changing The Hostname?
Mar 14, 2010I am coming across a strange error with my gateway. When I do a "ping", this is what I get below:
k-63a5b848c6cb4:~ # ping simba
PING simba.gateway.2wire.net (192.168.1.69) 56(84) bytes of data.
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=1 ttl=64 time=0.041 ms
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=2 ttl=64 time=0.029 ms
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=3 ttl=64 time=0.023 ms
64 bytes from k-63a5b848c6cb4 (192.168.1.69): icmp_seq=4 ttl=64 time=0.015 ms
Does anyone know what the problem could be?
Networking :: Gateway / Firewall And Log Server
Aug 1, 2009I got 2 servers, each on different locations (server 1 and server 2). I want all traffic on server1 included web browsing, applications etc., be always going through server2, like a gateway. I want the traffic to be encrypted (maybe use VPN?) So if I browse, or any logs pick up ip adresses from applications used by server1, I want it to display the IP address from server2 (Might be the wrong way to say it).
I always wants server2 to act as an firewall and logserver that logs all the traffic. I was thinking about using Snort for IPS/IDS solutions and OpenVPN for the traffic, but what can I use as a firewall? Most firewalls I find on google has its own OS/Distribution. Maybe Squid for logs? But squid does not support much protocols. Distribution on both servers are updated Debian/Ubuntu based.
Networking :: How To Configure Intranet PC As Gateway
May 1, 2009I am using Fedora 10. I have a network design like that:
WinServer --- (r1)router(r0) --- (eth1)LinuxPC(eth0) --- intranetPC
All netmask is 255.255.255.0
WinServer network is 192.168.1.0/24
intranetPC network is 10.10.0.0/24, gateway is IP of the LinuxPC(eth0): 10.10.0.2
Router:
r1 -IP: 192.168.1.253
r2 -IP: 10.10.0.253
LinuxPC
eth0 -IP: 10.10.0.2
eth1
-IP: 10.10.0.40
-GW: 10.10.0.253
I search in Internet several days to find how to configure the LinuxPC to a gateway. The LinuxPC can ping and connect the WinServer and intranetPC correctly, but the intranetPC cannot ping and connect the WinServer network.
I used the webmin to configure the Gateway.
I used the iptables to set allow all connect, than
iptables -t nat -A POSTROUTING -eth1 -j MASQUERADE
iptables -A FORWARD -i eth0 -j ACCEPT
echo 1 > /proc/sys/net/ipv4/ip_forward
In "/etc/sysconfig/network" add "FORWARD_IPV4=true"
Networking :: See Intranet Site From Behind Gateway?
Jul 28, 2010There are a lot of boxes in this network and we have intranet site. If I connect computer directly to the network with everything set to automatic. I can see this intranet site. But I've installed a switch. One box has two net adapters and it takes internet, intranet and all from one adapter, the other adapter is connected to switch. Now, I have connected to this switch two computers. Internet is working fine. But I cannot get to this intranet site from these boxes. I can get into shares of other computers in the network but they cannot see me. Everything is hidden behind the gateway. But that's not the problem for me. All I want is to get to this intranet website. How can I do it?.
View 2 Replies View RelatedNetworking :: PPTPD No Gateway / Ping OK
Mar 8, 2010My problem is simple, iam runing ubuntu 8.04 (ebox 1.4) , i have installed and configured PPTPD server, i can connect and ping users perfectly. BUT i dont getting any gateway address, in my case i have to get IP address 172.16.0.1 (PPTP server address).I tried to change localIP in pptpd.conf to 0.0.0.0 ,or my remote(ISP) address but nothing.Can someone explain to me how can i manually assign gateway IP address to PPTPD Server ???
View 1 Replies View RelatedNetworking :: VPN Server And Internet Gateway
Apr 2, 2011I just set up a linux server which is acting as an internet gateway. For specific reasons, clients first make a vpn connection trough the internet to the linux server.
CLIENT ---->Internet----->Linux VPN Server ------> Internet
On the linux server iptables is configured for NAT. The problem is that the internet speed becomes slower than expected. I used windows and RAAS and the speed was pretty good. The server has only 1 NIC(eth0) and an alias interface is added to eth0. The alias is eth:0 with ip address 192.168.0.253
iptables config is as follows:
iptables -P INPUT ACCEPT
iptables -F INPUT
iptables -P OUTPUT ACCEPT
iptables -F OUTPUT
iptables -P FORWARD DROP
iptables -F FORWARD
iptables -t nat -F
iptables -A FORWARD -d 192.168.0.0/24 -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A FORWARD -s 192.168.0.0/24 -j ACCEPT
iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -j SNAT --to MY_VALID_IP
Networking :: Redirect Squid To Another Gateway
Mar 31, 2010I have recently just got another internet connection at home via cable as well as my exisiting DSL connection. I was wanting all my web browsing that I did via squid to be redirected down the cable connection. The box has a single nic at the moment and the default route sends it via the dsl connection for the mail server that is also running on the box.I was hoping that anything that hit squid would go down the cable connection that is plugged into a router and thus I can route to 172.16.2.251 and everything will go out via cable.
I was reading about iproute2 and marking the packets and is wondering whether this is the way to go?
Networking :: Routing For A VPN Gateway Setup?
Dec 17, 2010I've been trying to setup an IPSec connection between two routers, but am having trouble with the actual packet routing.
My setup currently is two local networks (192.168.1.0/24[netLANA] and 192.168.0.0/24[netLANB]) that are connected to their own routers (192.168.1.1 and 192.168.0.1 respectively). The routers are both connected to the 194.26.1.0/24[netWAN] network. I wish to setup an IPSec connection between the two routers, to act in tunnel mode between the two local networks.
The first router is a linux box (on the netLANA network) that I am setting up using the ipsec-tools, and the other is a Netgear ProSafe FVS318G (on the netLANB). I've set them both up to have the same configuration for IPSec. Also, on the linux router I have setup a route like this:
Code:
$ route add -net 192.168.1.0/24 wlan0
So that all traffic destined for the netLANB network will be routed to the wlan0 interface (netWAN in this case, and therefore over the tunnel).
My problem is that if I ping from any host on netLANA, I can see the ICMP reply comes back to the linux router, but it doesn't get back to the original host.
From the linux router, here is the tcpdump of the ping:
Code:
$ tcpdump -n -S -i any
17:06:26.308353 IP 192.168.0.5 > 192.168.1.4: ICMP echo request, id 1036, seq 1, length 64
17:06:26.308780 IP 194.16.1.6 > 194.16.1.5: ESP(spi=0x0ea08914,seq=0x2f), length 116
17:06:26.316287 IP 194.16.1.5 > 194.16.1.6: ESP(spi=0x0be1036c,seq=0x2f), length 116
17:06:26.316287 IP 192.168.1.4 > 192.168.0.5: ICMP echo reply, id 1036, seq 1, length 64
[Code]....
Networking :: Use Unrestricted Computer As Gateway
Mar 26, 2010I am having some strange requirements. In my office we all are suppose to use internet by proxy. Squid is installed as proxy. we are given a username and password, that we are suppose to authenticate our selves before we can use internet. But tell u some rules are very bad, like we can not download file from net larger than 3MB,etc. Squid is configured with strict policy. Now, for R & D purpose I am having root access to an unrestricted computer, which is connected to Internet directly. and there is no such limit, as I can use wget to download files of anysize on that machine. It uses fedora 10. I am using fedora 12. Now is there any way I can configure these two PC to use unrestricted net. I mean can I configure my pc to use Internet via that unrestricted pc. What are the changes I will be needed to do at my PC and other open net PC? I am having root access to both PC.
View 1 Replies View RelatedNetworking :: Where Is Gateway Info Stored?
Jun 23, 2010I have my box set up with dhcp.The dhcp server gives me my gateway.Is this info placed in any files? I can see my gateway by typing in netstat -rn, but I don't know where this info is stored. I have looked in /etc/sysconfig/network and /etc/sysconfig/network-scripts/ifcfg-etho.I've tried to grep in quite a few directories/files for GATEWAY but haven't found my answer.Running RH54.
View 3 Replies View Related