Package: linux-image-3.2.0-4-amd64
Version: 3.2.60-1+deb7u3
Arch: amd64 Linux
Desc: 3.2 for 64-bit PCs
When using 'route -n' or 'ip route show' a certain /24 Route is
displayed, but does not have effect on the routing decision of the
kernel.
After removing the bogus route and setting it once again, everything
works as expected.
Other packages in conjunction:
net-tools_1.60-24.2_amd64
iproute_20120521-3+b3_amd64
vlan_1.9-3_amd64
libc6_2.13-38+deb7u4_amd64
Here is a transcript:
------------------------------%<-----------------------------------------
toaster:~# ping 192.168.18.1
PING 192.168.18.1 (192.168.18.1) 56(84) bytes of data.
^C
--- 192.168.18.1 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2006ms
toaster:~# ping 192.168.18.2
PING 192.168.18.2 (192.168.18.2) 56(84) bytes of data.
^C
--- 192.168.18.2 ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1006ms
toaster:~# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
0.0.0.0 192.124.246.50 0.0.0.0 UG 0 0 0
vlan10
192.124.246.0 0.0.0.0 255.255.255.0 U 0 0 0
vlan10
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0
vlan13
192.168.11.0 0.0.0.0 255.255.255.0 U 0 0 0
vlan12
192.168.18.0 192.124.246.48 255.255.255.0 UG 0 0 0
vlan10
192.168.71.0 0.0.0.0 255.255.255.0 U 0 0 0
vlan11
toaster:~# ip route show
default via 192.124.246.50 dev vlan10
192.124.246.0/24 dev vlan10 proto kernel scope link src
192.124.246.66
192.168.1.0/24 dev vlan13 proto kernel scope link src 192.168.1.11
192.168.11.0/24 dev vlan12 proto kernel scope link src 192.168.11.201
192.168.18.0/24 via 192.124.246.48 dev vlan10
192.168.71.0/24 dev vlan11 proto kernel scope link src 192.168.71.201
toaster:~# traceroute 192.168.18.1
traceroute to 192.168.18.1 (192.168.18.1), 30 hops max, 60 byte packets
1 win1.asfh-berlin.de (192.124.246.50) 0.319 ms 0.309 ms 0.302 ms
2 * * *
3 * * *
4 * * *
5 * * *
6 * * *
7 *^C
toaster:~# traceroute 192.168.18.2
traceroute to 192.168.18.2 (192.168.18.2), 30 hops max, 60 byte packets
1 gw.asfh-berlin.de (192.124.246.48) 0.146 ms * *
2 10.8.0.2 (10.8.0.2) 23.625 ms 23.562 ms 23.561 ms
3 * * *
4 * * *
5 * * *
6 * * *
7 * * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 *^C
toaster:~# traceroute 192.168.18.1
traceroute to 192.168.18.1 (192.168.18.1), 30 hops max, 60 byte packets
1 win1.asfh-berlin.de (192.124.246.50) 0.126 ms 0.111 ms 0.103 ms
2 * * *
3 * * *
4 * * *
5 * * *
6 * * *
7 * * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * *^C
toaster:~# route del -net 192.168.18.0/24 gw 192.124.246.48
toaster:~# route add -net 192.168.18.0/24 gw 192.124.246.48
toaster:~# traceroute 192.168.18.1
traceroute to 192.168.18.1 (192.168.18.1), 30 hops max, 60 byte packets
1 * * *
2 192.168.18.1 (192.168.18.1) 24.327 ms 24.309 ms 24.279 ms
toaster:~# traceroute 192.168.18.2
traceroute to 192.168.18.2 (192.168.18.2), 30 hops max, 60 byte packets
1 gw.asfh-berlin.de (192.124.246.48) 0.183 ms 0.166 ms 0.156 ms
2 10.8.0.2 (10.8.0.2) 23.559 ms 23.558 ms 23.551 ms
3 * * *
4 * * *
5 * * *
6 * * *
7 * * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *^C
toaster:~# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
0.0.0.0 192.124.246.50 0.0.0.0 UG 0 0 0
vlan10
192.124.246.0 0.0.0.0 255.255.255.0 U 0 0 0
vlan10
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0
vlan13
192.168.11.0 0.0.0.0 255.255.255.0 U 0 0 0
vlan12
192.168.18.0 192.124.246.48 255.255.255.0 UG 0 0 0
vlan10
192.168.71.0 0.0.0.0 255.255.255.0 U 0 0 0
vlan11
toaster:~# ip route show
default via 192.124.246.50 dev vlan10
192.124.246.0/24 dev vlan10 proto kernel scope link src
192.124.246.66
192.168.1.0/24 dev vlan13 proto kernel scope link src 192.168.1.11
192.168.11.0/24 dev vlan12 proto kernel scope link src 192.168.11.201
192.168.18.0/24 via 192.124.246.48 dev vlan10
192.168.71.0/24 dev vlan11 proto kernel scope link src 192.168.71.201
toaster:~# lspci
00:00.0 Host bridge: Intel Corporation 3200/3210 Chipset DRAM Controller
(rev 01)
00:01.0 PCI bridge: Intel Corporation 3200/3210 Chipset Host-Primary PCI
Express Bridge (rev 01)
00:1a.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #4 (rev 02)
00:1a.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #5 (rev 02)
00:1a.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI
Controller #2 (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express
Port 1 (rev 02)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express
Port 5 (rev 02)
00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express
Port 6 (rev 02)
00:1d.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #1 (rev 02)
00:1d.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #2 (rev 02)
00:1d.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #3 (rev 02)
00:1d.3 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #6 (rev 02)
00:1d.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI
Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 92)
00:1f.0 ISA bridge: Intel Corporation 82801IR (ICH9R) LPC Interface
Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller
(rev 02)
00:1f.6 Signal processing controller: Intel Corporation 82801I (ICH9
Family) Thermal Subsystem (rev 02)
01:00.0 RAID bus controller: 3ware Inc 9650SE SATA-II RAID PCIe (rev 01)
05:00.0 PCI bridge: Intel Corporation 6702PXH PCI Express-to-PCI Bridge
A (rev 09)
0d:00.0 Ethernet controller: Intel Corporation 82573V Gigabit Ethernet
Controller (Copper) (rev 03)
0f:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet
Controller
11:03.0 VGA compatible controller: XGI Technology Inc. (eXtreme Graphics
Innovation) Z9s/Z9m (XG21 core)
toaster:~# lsmod
Module Size Used by
ipt_LOG 12605 1
xt_limit 12638 1
ipt_REJECT 12502 2
xt_tcpudp 12570 37
nf_conntrack_ipv4 14078 1
nf_defrag_ipv4 12483 1 nf_conntrack_ipv4
xt_state 12503 1
nf_conntrack 52720 2 xt_state,nf_conntrack_ipv4
iptable_filter 12536 1
ip_tables 22042 1 iptable_filter
x_tables 19118 7
ip_tables,iptable_filter,xt_state,xt_tcpudp,ipt_REJECT,xt_limit,ipt_LOG
battery 13146 0
power_supply 13475 1 battery
fuse 61972 1
nfsd 216167 2
nfs 308353 1
nfs_acl 12511 2 nfs,nfsd
auth_rpcgss 37143 2 nfs,nfsd
fscache 36739 1 nfs
lockd 67306 2 nfs,nfsd
sunrpc 173730 10 lockd,auth_rpcgss,nfs_acl,nfs,nfsd
8021q 23480 0
garp 13193 1 8021q
stp 12437 1 garp
bonding 79169 0
ext4 350763 3
crc16 12343 1 ext4
jbd2 62115 1 ext4
ipmi_devintf 17092 0
ipmi_si 36954 0
ipmi_msghandler 35965 2 ipmi_si,ipmi_devintf
dme1737 34038 0
lm85 22424 0
hwmon_vid 12430 2 lm85,dme1737
loop 22641 0
sr_mod 21899 0
cdrom 35401 1 sr_mod
ftdi_sio 38270 1
usbserial 32061 3 ftdi_sio
i3200_edac 12598 0
edac_core 35258 2 i3200_edac
i2c_i801 16870 0
i2c_core 23876 3 i2c_i801,lm85,dme1737
coretemp 12898 0
iTCO_wdt 17081 1
iTCO_vendor_support 12704 1 iTCO_wdt
acpi_cpufreq 12935 1
mperf 12453 1 acpi_cpufreq
button 12937 0
container 12581 0
processor 28149 1 acpi_cpufreq
thermal_sys 18040 1 processor
psmouse 69265 0
shpchp 31293 0
serio_raw 12931 0
pcspkr 12579 0
evdev 17562 3
ext3 162072 2
mbcache 13114 2 ext3,ext4
jbd 56902 1 ext3
dm_mod 63645 12
sg 25874 0
sd_mod 36136 5
crc_t10dif 12348 1 sd_mod
ums_cypress 12534 0
usb_storage 43870 1 ums_cypress
e1000e 133833 0
uhci_hcd 26865 0
3w_9xxx 38366 5
scsi_mod 162269 6
3w_9xxx,usb_storage,ums_cypress,sd_mod,sg,sr_mod
ehci_hcd 40249 0
usbcore 128741 7
ehci_hcd,uhci_hcd,usb_storage,ums_cypress,usbserial,ftdi_sio
usb_common 12354 1 usbcore
------------------------------%<-----------------------------------------
I suggest that the issue may be reproduced.
I am using Debian GNU/Linux 7, kernel 3.2.60-1+deb7u3
and libc6 2.13-38+deb7u4.
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