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Groups > comp.os.linux.networking > #1245
| 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 09:44 -0700 |
| Organization | http://groups.google.com |
| Message-ID | <26518308.9.1333903498341.JavaMail.geo-discussion-forums@pbtd9> (permalink) |
| References | (2 earlier) <13863831.877.1333898763111.JavaMail.geo-discussion-forums@pbjk8> <20292715.691.1333900061222.JavaMail.geo-discussion-forums@pbsy3> <jlsdeu$2s1d$1@saria.nerim.net> <18422322.213.1333902286409.JavaMail.geo-discussion-forums@pbag4> <jlsehl$2sf8$1@saria.nerim.net> |
Pascal Hambourg於 2012年4月9日星期一UTC+8上午12時31分47秒寫道： > lincy a écrit : > > > > 192.168.2.x/192.168.3.x/192.168.4.x can't ping each other. > > ex: 192.168.2.x can't ping 192.168.3.x > > but 192.168.2.a can ping 192.168.2.b, 192.168.3.a can ping 192.168.3.b > > Did you check that /proc/sys/net/ipv4/ip_forward is actually set to 1 ? > What is the output of "route -n" or "ip route" on the Linux router and > on a host in each subnet ? > What is the exact result (output) of the ping commands ? > What is the output of iptables-save on the Linux router ? 1. yes, It's 1 2. 4 ports router. Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.1.254 0.0.0.0 UG 100 0 0 eth0 192.168.2.0 * 255.255.255.0 U 0 0 0 eth1 192.168.3.0 * 255.255.255.0 U 0 0 0 eth2 192.168.4.0 * 255.255.255.0 U 0 0 0 eth3 192.168.1.0 * 255.255.255.0 U 0 0 0 eth0 client machine. (windows) IP address : 192.168.2.181 netmask : 255.255.255.0 gateway : 192.168.2.1 DHCP server : 192.168.2.1 DNS Server : 192.168.2.1 WINS Server : 192.168.1.1 NetBIOS over tcpip : yes 3. ping 192.168.3.51 Timeout... Timeout... .... 4. # Generated by iptables-save v1.4.10 on Mon Apr 9 00:41:02 2012 *filter :INPUT ACCEPT [686:74793] :FORWARD ACCEPT [129:25283] :OUTPUT ACCEPT [607:68740] COMMIT # Completed on Mon Apr 9 00:41:02 2012 # Generated by iptables-save v1.4.10 on Mon Apr 9 00:41:02 2012 *nat :PREROUTING ACCEPT [55:5548] :INPUT ACCEPT [41:4300] :OUTPUT ACCEPT [73:7833] :POSTROUTING ACCEPT [86:8975] COMMIT # Completed on Mon Apr 9 00:41:02 2012 # Generated by iptables-save v1.4.10 on Mon Apr 9 00:41:02 2012 *mangle :PREROUTING ACCEPT [816:100182] :INPUT ACCEPT [686:74793] :FORWARD ACCEPT [129:25283] :OUTPUT ACCEPT [607:68740] :POSTROUTING ACCEPT [1002:127527] COMMIT # Completed on Mon Apr 9 00:41:02 2012
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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
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