Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.os.linux.networking > #1240
| From | lincy <lincylin@gmail.com> |
|---|---|
| Newsgroups | comp.os.linux.networking |
| Subject | Re: linux as multi-port (subnet) router using Ubuntu 11.10 server |
| Date | 2012-04-08 08:26 -0700 |
| Organization | http://groups.google.com |
| Message-ID | <13863831.877.1333898763111.JavaMail.geo-discussion-forums@pbjk8> (permalink) |
| References | <11134348.13.1333889415598.JavaMail.geo-discussion-forums@pbnu1> <jls6jb$50l$1@dont-email.me> |
Tauno Voipio於 2012年4月8日星期日UTC+8下午10時16分11秒寫道： > On 8.4.12 3:50 , lincy wrote: > > Hi everyone. > > > > I have an fast-growing network. Around 120-130 pcs in single class c localnet (192.168.1.0/24). Because service lot large file share (multi-nas for multi-media). > > > > Now I am try to split it by department. So, I am using an 4 ports giga lan machine and install ubuntu 11.10 server. Because I just want to split the network but not to do any security in this machine. So, I just setup 4 subnet and enable the ip forward. > > > > eth0: 192.168.1.1 netmask 255.255.255.0 > > eth1: 192.168.2.1 netmask 255.255.255.0 > > eth2: 192.168.3.1 netmask 255.255.255.0 > > eth3: 192.168.4.1 netmask 255.255.255.0 > > > > And echo 1> /proc/sys/net/ipv4/ip_forward in /etc/rc.local > > > > Now, My problem was. > > > > I can't ping cross subnet, ex: ping 192.168.2.x from 192.168.1.x > > But I can open web page cross subnet. ex: open 192.168.1.x intranet web server from 192.168.2.x or 192.168.3.x > > I also can't access the windows/share-folder either samba share cross subnet. > > But same subnet can access. ex: 192.168.1.x's pc can access NAS within 192.168.1.x but not NAS in 192.168.2.x. > > > > Does anyone know what's wrong ? > > > How is the default gateway in the client machines set? > > My guess is: > > a) The clients in subnets do not know that the route to another > subnet goes via the Linux machine, I have using dnsmasq too, so each subnet's client can get correctly ip and default gw to this machine. ex: 192.168.1.x > Another question: Is the way out from the subnets to the big > Internet via the Linux machine, or something else? > > If this is a basic network tree, you should have in each machine > the default gateway pointing to the next step toward the Net. > You have now changed the next step from what it was. > > -- > > Tauno Voipio Tauno Voipio於 2012年4月8日星期日UTC+8下午10時16分11秒寫道： > On 8.4.12 3:50 , lincy wrote: > > Hi everyone. > > > > I have an fast-growing network. Around 120-130 pcs in single class c localnet (192.168.1.0/24). Because service lot large file share (multi-nas for multi-media). > > > > Now I am try to split it by department. So, I am using an 4 ports giga lan machine and install ubuntu 11.10 server. Because I just want to split the network but not to do any security in this machine. So, I just setup 4 subnet and enable the ip forward. > > > > eth0: 192.168.1.1 netmask 255.255.255.0 > > eth1: 192.168.2.1 netmask 255.255.255.0 > > eth2: 192.168.3.1 netmask 255.255.255.0 > > eth3: 192.168.4.1 netmask 255.255.255.0 > > > > And echo 1> /proc/sys/net/ipv4/ip_forward in /etc/rc.local > > > > Now, My problem was. > > > > I can't ping cross subnet, ex: ping 192.168.2.x from 192.168.1.x > > But I can open web page cross subnet. ex: open 192.168.1.x intranet web server from 192.168.2.x or 192.168.3.x > > I also can't access the windows/share-folder either samba share cross subnet. > > But same subnet can access. ex: 192.168.1.x's pc can access NAS within 192.168.1.x but not NAS in 192.168.2.x. > > > > Does anyone know what's wrong ? > > > How is the default gateway in the client machines set? > > My guess is: > > a) The clients in subnets do not know that the route to another > subnet goes via the Linux machine, > > b) There is a HTTP proxy in the Linux machine forwarding the > Web requests. > > Another question: Is the way out from the subnets to the big > Internet via the Linux machine, or something else? > > If this is a basic network tree, you should have in each machine > the default gateway pointing to the next step toward the Net. > You have now changed the next step from what it was. > > -- > > Tauno Voipio Tauno Voipio於 2012年4月8日星期日UTC+8下午10時16分11秒寫道： > On 8.4.12 3:50 , lincy wrote: > > Hi everyone. > > > > I have an fast-growing network. Around 120-130 pcs in single class c localnet (192.168.1.0/24). Because service lot large file share (multi-nas for multi-media). > > > > Now I am try to split it by department. So, I am using an 4 ports giga lan machine and install ubuntu 11.10 server. Because I just want to split the network but not to do any security in this machine. So, I just setup 4 subnet and enable the ip forward. > > > > eth0: 192.168.1.1 netmask 255.255.255.0 > > eth1: 192.168.2.1 netmask 255.255.255.0 > > eth2: 192.168.3.1 netmask 255.255.255.0 > > eth3: 192.168.4.1 netmask 255.255.255.0 > > > > And echo 1> /proc/sys/net/ipv4/ip_forward in /etc/rc.local > > > > Now, My problem was. > > > > I can't ping cross subnet, ex: ping 192.168.2.x from 192.168.1.x > > But I can open web page cross subnet. ex: open 192.168.1.x intranet web server from 192.168.2.x or 192.168.3.x > > I also can't access the windows/share-folder either samba share cross subnet. > > But same subnet can access. ex: 192.168.1.x's pc can access NAS within 192.168.1.x but not NAS in 192.168.2.x. > > > > Does anyone know what's wrong ? > > > How is the default gateway in the client machines set? > > My guess is: > > a) The clients in subnets do not know that the route to another > subnet goes via the Linux machine, > > b) There is a HTTP proxy in the Linux machine forwarding the > Web requests. > > Another question: Is the way out from the subnets to the big > Internet via the Linux machine, or something else? > > If this is a basic network tree, you should have in each machine > the default gateway pointing to the next step toward the Net. > You have now changed the next step from what it was. > > -- > > Tauno Voipio Tauno Voipio於 2012年4月8日星期日UTC+8下午10時16分11秒寫道： > On 8.4.12 3:50 , lincy wrote: > > Hi everyone. > > > > I have an fast-growing network. Around 120-130 pcs in single class c localnet (192.168.1.0/24). Because service lot large file share (multi-nas for multi-media). > > > > Now I am try to split it by department. So, I am using an 4 ports giga lan machine and install ubuntu 11.10 server. Because I just want to split the network but not to do any security in this machine. So, I just setup 4 subnet and enable the ip forward. > > > > eth0: 192.168.1.1 netmask 255.255.255.0 > > eth1: 192.168.2.1 netmask 255.255.255.0 > > eth2: 192.168.3.1 netmask 255.255.255.0 > > eth3: 192.168.4.1 netmask 255.255.255.0 > > > > And echo 1> /proc/sys/net/ipv4/ip_forward in /etc/rc.local > > > > Now, My problem was. > > > > I can't ping cross subnet, ex: ping 192.168.2.x from 192.168.1.x > > But I can open web page cross subnet. ex: open 192.168.1.x intranet web server from 192.168.2.x or 192.168.3.x > > I also can't access the windows/share-folder either samba share cross subnet. > > But same subnet can access. ex: 192.168.1.x's pc can access NAS within 192.168.1.x but not NAS in 192.168.2.x. > > > > Does anyone know what's wrong ? > > > How is the default gateway in the client machines set? > > My guess is: > > a) The clients in subnets do not know that the route to another > subnet goes via the Linux machine, > Thanks your reply. First, I have 192.168.1.x subnet. so. Have one firewall in front of Internet. It's 192.168.1.254, So, every machine in 192.168.1.x was default gw point to 192.168.1.254 At the new 4 ports machine. I set the default gw to 192.168.1.254 Then add static route, 192.168.2.x/192.168.3.x/192.168.4.x point to 192.168.1.1 This machine no any rule. Just forward enable. > Another question: Is the way out from the subnets to the big > Internet via the Linux machine, or something else? as above. I think, If I don't set any filter rule. This machine should pass any package. But look like it don't. I don't know why http port can work. But not other ports.
Back to comp.os.linux.networking | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-08 05:50 -0700
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2012-04-08 17:16 +0300
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-08 08:26 -0700
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-08 08:47 -0700
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2012-04-08 18:13 +0200
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-08 09:24 -0700
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2012-04-08 18:31 +0200
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-08 09:44 -0700
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2012-04-08 19:54 +0200
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-08 17:13 -0700
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2012-04-09 10:45 +0200
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-09 06:40 -0700
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2012-04-09 21:01 +0200
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-09 12:56 -0700
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2012-04-09 23:33 +0200
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2012-04-10 08:55 +0300
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-09 23:40 -0700
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2012-04-10 14:39 +0300
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-10 08:22 -0700
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2012-04-08 21:13 +0300
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2012-04-08 20:48 +0200
Re: linux as multi-port (subnet) router using Ubuntu 11.10 server lincy <lincylin@gmail.com> - 2012-04-08 17:25 -0700
csiph-web