Network problem: Destination Host Unreachable under SuSE-8.2
Hi SuSEr! Just installed SuSE 8.2. Yast is great! But I have problem with network. In fact I install SuSE on my 2nd box (192.168.100.2) in which I have also RH-9 & Conectiva-9. I have another linux box (192.168.100.1) for FW & router of ADSL line. Under RH9 & Conectiva-9, I need config default gw is 192.168.100.1 for box 192.168.100.2 and network works fine. But not under SuSE-8.2. By viewing the kernel module, I see that the same kernel module was loaded in SuSE and RH9 (8139too, I use NIC Realtek RTL-8139/8139C/8139C+). When I ping localhost or 127.0.0.1 => OK: ---------------------------------------------------------------------- [SuSE] > ping localhost PING localhost (127.0.0.1) 56(84) bytes of data. 64 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.028 ms 64 bytes from localhost (127.0.0.1): icmp_seq=2 ttl=64 time=0.024 ms 64 bytes from localhost (127.0.0.1): icmp_seq=3 ttl=64 time=0.025 ms 64 bytes from localhost (127.0.0.1): icmp_seq=4 ttl=64 time=0.025 ms 64 bytes from localhost (127.0.0.1): icmp_seq=5 ttl=64 time=0.024 ms 64 bytes from localhost (127.0.0.1): icmp_seq=6 ttl=64 time=0.024 ms 64 bytes from localhost (127.0.0.1): icmp_seq=7 ttl=64 time=0.026 ms 64 bytes from localhost (127.0.0.1): icmp_seq=8 ttl=64 time=0.026 ms --- localhost ping statistics --- 8 packets transmitted, 8 received, 0% packet loss, time 6994ms rtt min/avg/max/mdev = 0.024/0.025/0.028/0.003 ms [SuSE] > ping 127.0.0.1 PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data. 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.028 ms 64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.023 ms --- 127.0.0.1 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 999ms rtt min/avg/max/mdev = 0.023/0.025/0.028/0.005 ms ------------------------------------------------------------------ But when I ping to 192.168.100.1 it does not work: [SuSE] > ping adsl.nguyendai.org PING adsl.nguyendai.org (192.168.100.1) 56(84) bytes of data. From suse.nguyendai.org (192.168.100.2): icmp_seq=1 Destination Host Unreachable From suse.nguyendai.org (192.168.100.2) icmp_seq=1 Destination Host Unreachable From suse.nguyendai.org (192.168.100.2) icmp_seq=2 Destination Host Unreachable From suse.nguyendai.org (192.168.100.2) icmp_seq=3 Destination Host Unreachable From suse.nguyendai.org (192.168.100.2) icmp_seq=4 Destination Host Unreachable From suse.nguyendai.org (192.168.100.2) icmp_seq=5 Destination Host Unreachable From suse.nguyendai.org (192.168.100.2) icmp_seq=6 Destination Host Unreachable --- adsl.nguyendai.org ping statistics --- 9 packets transmitted, 0 received, +7 errors, 100% packet loss, time 8028ms , pipe 3 ------------------------------------------------------------------ Output of ifconfig is: [SuSE] > /sbin/ifconfig eth0 Link encap:Ethernet HWaddr 00:08:A1:34:FF:12 inet addr:192.168.100.2 Bcast:192.168.100.255 Mask:255.255.255.0 inet6 addr: fe80::208:a1ff:fe34:ff12/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:41 errors:0 dropped:0 overruns:0 frame:0 TX packets:41 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:2878 (2.8 Kb) TX bytes:2878 (2.8 Kb) Interrupt:11 Base address:0x7000 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:143 errors:0 dropped:0 overruns:0 frame:0 TX packets:143 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:11076 (10.8 Kb) TX bytes:11076 (10.8 Kb) ----------------------------------------------------------------------- [SuSE] > /sbin/route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.100.0 192.168.100.1 255.255.255.0 UG 0 0 0 eth0 192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 ----------------------------------------------------------------------- [SuSE] > cat /etc/hosts 127.0.0.1 localhost # special IPv6 addresses ::1 localhost ipv6-localhost ipv6-loopback fe00::0 ipv6-localnet ff00::0 ipv6-mcastprefix ff02::1 ipv6-allnodes ff02::2 ipv6-allrouters ff02::3 ipv6-allhosts 192.168.100.1 adsl.nguyendai.org adsl 192.168.100.2 suse.nguyendai.org suse ----------------------------------------------------------------------- The IPV6 records were added into /etc/hosts by SuSE :) I tried : # ifconfig eth0 down # rmmod 8139too; modprobe 8139too # ifconfig eth0 192.168.100.2 netmask 255.255.255.0 up # route add -net 192.168.100.0 netmask 255.255.255.0 eth0 # route add default gw 192.168.100.1 eth0 But the same error when I ping. The config of RH9 at the same box: [RH9] # ifconfig eth0 Link encap:Ethernet HWaddr 00:08:A1:34:FF:12 inet addr:192.168.100.2 Bcast:192.168.100.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:128 errors:0 dropped:0 overruns:0 frame:0 TX packets:122 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:28327 (27.6 Kb) TX bytes:11154 (10.8 Kb) Interrupt:11 Base address:0xf000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:2 errors:0 dropped:0 overruns:0 frame:0 TX packets:2 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:196 (196.0 b) TX bytes:196 (196.0 b) [RH9] # route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo 0.0.0.0 192.168.100.1 0.0.0.0 UG 0 0 0 eth0 [RH9] # cat /etc/hosts 127.0.0.1 localhost.localdomain localhost 192.168.100.1 adsl.nguyendai.org adsl 192.168.100.2 vnpenguin.nguyendai.org vnpenguin I don't know how to fix this problem because I'm new to SuSE. Could you help me please. TIA, Quy NGUYEN DAI
On Sunday 18 May 2003 9:29 pm, NGUYEN DAI Quy wrote:
Hi SuSEr!
Just installed SuSE 8.2. Yast is great! But I have problem with network. In fact I install SuSE on my 2nd box (192.168.100.2) in which I have also RH-9 & Conectiva-9. I have another linux box (192.168.100.1) for FW & router of ADSL line.
Under RH9 & Conectiva-9, I need config default gw is 192.168.100.1 for box 192.168.100.2 and network works fine. But not under SuSE-8.2. By viewing the kernel module, I see that the same kernel module was loaded in SuSE and RH9 (8139too, I use NIC Realtek RTL-8139/8139C/8139C+).
----------------------------------------------------------------------- [SuSE] > /sbin/route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.100.0 192.168.100.1 255.255.255.0 UG 0 0 0 eth0 192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 -----------------------------------------------------------------------
This routing table is rubbish [ignoring the corruption in my quoting], I assume it is for 192.168.100.2. It says: *** anything to 192.168.100.xxx goes via 192.168.100.1 *** anything to 192.168.100.xxx goes via eth0 Your Red hat one makes more sense:
Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo 0.0.0.0 192.168.100.1 0.0.0.0 UG 0 0 0 eth0
It says *** anything to 192.168.100.xxx goes via eth0 *** anything to 169.254.xxx.xxx [ this line looks like rubbish, but it is almost harmless] *** anything to localhost [127.0.0.1] goes via l0, the local interface *** anything to anywhere not dealt with above goes via 192.168.100.1 Hope that helps Vince Littler
Vince Littler wrote:
On Sunday 18 May 2003 9:29 pm, NGUYEN DAI Quy wrote:
Hi SuSEr!
Just installed SuSE 8.2. Yast is great! But I have problem with network. In fact I install SuSE on my 2nd box (192.168.100.2) in which I have also RH-9 & Conectiva-9. I have another linux box (192.168.100.1) for FW & router of ADSL line.
Under RH9 & Conectiva-9, I need config default gw is 192.168.100.1 for box 192.168.100.2 and network works fine. But not under SuSE-8.2. By viewing the kernel module, I see that the same kernel module was loaded in SuSE and RH9 (8139too, I use NIC Realtek RTL-8139/8139C/8139C+).
----------------------------------------------------------------------- [SuSE] > /sbin/route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.100.0 192.168.100.1 255.255.255.0 UG 0 0 0 eth0 192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 -----------------------------------------------------------------------
This routing table is rubbish [ignoring the corruption in my quoting], I assume it is for 192.168.100.2.
It says:
*** anything to 192.168.100.xxx goes via 192.168.100.1 *** anything to 192.168.100.xxx goes via eth0
Your Red hat one makes more sense:
Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo 0.0.0.0 192.168.100.1 0.0.0.0 UG 0 0 0 eth0
It says
*** anything to 192.168.100.xxx goes via eth0 *** anything to 169.254.xxx.xxx [ this line looks like rubbish, but it is almost harmless] *** anything to localhost [127.0.0.1] goes via l0, the local interface *** anything to anywhere not dealt with above goes via 192.168.100.1
Hope that helps
Vince Littler
Sorry, I dont understand your explanations. Could you tell me more about it please. TIA Q
Hi,
Just try to play with route. Here is the router table:
vnpenguin:~ # route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
192.168.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 192.168.100.1 0.0.0.0 UG 0 0 0 eth0
vnpenguin:~ # ifconfig
eth0 Link encap:Ethernet HWaddr 00:08:A1:34:FF:12
inet addr:192.168.100.2 Bcast:192.168.100.255 Mask:255.255.255.0
inet6 addr: fe80::208:a1ff:fe34:ff12/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:29 errors:0 dropped:0 overruns:0 frame:0
TX packets:31 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:3235 (3.1 Kb) TX bytes:2878 (2.8 Kb)
Interrupt:11 Base address:0xd000
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:56 errors:0 dropped:0 overruns:0 frame:0
TX packets:56 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3952 (3.8 Kb) TX bytes:3952 (3.8 Kb)
But the same error (Destination Host Unreachable) is always presented for pinging to
192.168.100.1 (the SuSE box is 192.168.100.2).
When I do dmesg, I see:
[...]
8139too Fast Ethernet driver 0.9.26
eth0: RealTek RTL8139 Fast Ethernet at 0xe486d000, 00:08:a1:34:ff:12, IRQ 11
eth0: Identified 8139 chip type 'RTL-8139C'
eth0: Setting 100mbps full-duplex based on auto-negotiated partner ability 41e1.
[...]
IPv6 v0.8 for NET4.0
IPv6 over IPv4 tunneling driver
usb.c: registered new driver hiddev
usb.c: registered new driver hid
input0: USB HID v1.10 Mouse [Logitech USB-PS/2 Optical Mouse] on usb2:2.0
hid-core.c: v1.8.1 Andreas Gal, Vojtech Pavlik
participants (2)
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NGUYEN DAI Quy -
Vince Littler