Hi,

my home network:

Internet=> router(10.0.1.1) => | eth0 (10.0.1.2) eth1 (10.0.2.1)| => Mypc

I've tried to do this but It's useless...

echo 1 > /proc/sys/net/ipv4/ip_forward
iptables -A FORWARD -i eth1 -s 10.0.2.0/24 -j ACCEPT
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE

How to solve this problem? Slackware 12.0

Depending on the sub-net mask you are using, it may be all these addresses are on the same subnet. So the router won't route them.

What mask are you using? I" guessing you have eth0 and eht1 on the same system? Or not?

I'm using 255.255.255.0 on each interface. Yes, interfaces are on the same system.

hi bambeklis,

not enough information :
iptables -nvL please

ping from the linux router to router?
ping from the pc to linux router eth1 && eth0?

Hi rossonieri#1,

root@erdos:~# iptables -nvL
Chain INPUT (policy ACCEPT 165 packets, 11636 bytes)
pkts bytes target prot opt in out source destination

Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT all -- eth1 * 10.0.2.0/24 0.0.0.0/0

Chain OUTPUT (policy ACCEPT 172 packets, 18544 bytes)
pkts bytes target prot opt in out source destination
root@erdos:~#

From linux router to router:

root@erdos:~# ping 10.0.1.1
PING 10.0.1.1 (10.0.1.1) 56(84) bytes of data.
64 bytes from 10.0.1.1: icmp_seq=1 ttl=64 time=0.324 ms
64 bytes from 10.0.1.1: icmp_seq=2 ttl=64 time=0.305 ms
64 bytes from 10.0.1.1: icmp_seq=3 ttl=64 time=0.294 ms

--- 10.0.1.1 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1998ms
rtt min/avg/max/mdev = 0.294/0.307/0.324/0.023 ms
root@erdos:~#

From the PC to linux router eth1:

C:\Users\orion>ping 10.0.2.1

Pinging 10.0.2.1 with 32 bytes of data:
Reply from 10.0.2.1: bytes=32 time<1ms TTL=64
Reply from 10.0.2.1: bytes=32 time<1ms TTL=64
Reply from 10.0.2.1: bytes=32 time<1ms TTL=64
Reply from 10.0.2.1: bytes=32 time<1ms TTL=64

Ping statistics for 10.0.2.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Users\orion>

From the PC to linux router eth0:

C:\Users\orion>ping 10.0.1.4

Pinging 10.0.1.4 with 32 bytes of data:
Reply from 10.0.1.4: bytes=32 time<1ms TTL=64
Reply from 10.0.1.4: bytes=32 time<1ms TTL=64
Reply from 10.0.1.4: bytes=32 time<1ms TTL=64
Reply from 10.0.1.4: bytes=32 time<1ms TTL=64

Ping statistics for 10.0.1.4:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Users\orion>

Any suggestions?
Thanks

hi

looks good - but i forgot to ask you ping from pc to the router

well - if it looks good then the main problem should be dns.

HTH.

It looks good, so what should I do with that main problem?

hi

how do you connect to this forum exactly? do you have another internet connection or something?

just try open your browser && go surfing via your linux router - or - nslookup something.domain --> if it find the address then there should be no problem for you connect to the internet.

HTH.

Hi

I'm connecting to this forum via router: mypc=>router(not linux router)=>internet

C:\Users\orion>nslookup www.linuxquestions.org
DNS request timed out.
timeout was 2 seconds.
Server: UnKnown
Address: 62.80.244.2

DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to UnKnown timed-out

C:\Users\orion>

Looks like bad DNS server ?

Maybe my DHCP configuration on the linux router is incorrect ?

/etc/dhcpd.conf

ddns-updates on;
ddns-update-style ad-hoc;
option domain-name-servers 10.0.1.1;
option subnet-mask 255.255.255.0;
option routers 10.0.2.1;
# Local LAN
subnet 10.0.2.0 netmask 255.255.255.0 {
ddns-updates on;
range 10.0.2.3 10.0.2.150;
}

Look at the line "option domain-name-servers 10.0.1.1;" I've just changed the IP address of real DNS server to router's IP, but still can't connect to the net.

Any help please?

I need no help anymore, I've solved this problem. Thanks

It would have been nice if you put the resolution in the forum so others could know how to fix the problem... What was the answer?

Totally agree with you!