*SOLVED* VE networking not working properly- details included.
Here is the problem: Quote: # vzctl enter 1000 entered into VPS 1000 -bash-3.00# traceroute 69.64.46.7 traceroute to 69.64.46.7 (69.64.46.7), 30 hops max, 38 byte packets 1 203.171.31.140 (203.171.31.140) 0.069 ms 0.032 ms 0.026 ms 2 203.171.31.140 (203.171.31.140) 0.030 ms !<10> 0.030 ms !<10> 0.026 ms !<10> -bash-3.00# VPS cannot estabilish connectivity to the net. Seems packets never leave the HN. (203.171.31.140 is the IP of the HN) Here are the details: ---- HN Kernel: Quote: Linux digipower.vn 2.6.16-1.2133_FC5.026test015smp #1 SMP Thu Aug 3 18:17:42 MSD 2006 i686 athlon i386 GNU/Linux Utils: Quote: # rpm -qa | grep vz vzquota-3.0.8-1 vzctl-3.0.11-1 vzctl-lib-3.0.11-1 vzyum-2.4.0-11 HN ifconfig: Quote: # ifconfig eth0 Link encap:Ethernet HWaddr 00:30:48:58:32:80 inet addr:203.171.31.140 Bcast:203.171.31.191 Mask:255.255.255.192 inet6 addr: fe80::230:48ff:fe58:3280/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:20560 errors:0 dropped:0 overruns:0 frame:0 TX packets:7406 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1779178 (1.6 MiB) TX bytes:920926 (899.3 KiB) Interrupt:16 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:157 errors:0 dropped:0 overruns:0 frame:0 TX packets:157 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:17282 (16.8 KiB) TX bytes:17282 (16.8 KiB) venet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1 RX packets:473 errors:0 dropped:0 overruns:0 frame:0 TX packets:385 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:42870 (41.8 KiB) TX bytes:32997 (32.2 KiB) HN route: Quote: # route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 203.171.31.180 0.0.0.0 255.255.255.255 UH 0 0 0 venet0 203.171.31.128 0.0.0.0 255.255.255.192 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 0.0.0.0 203.171.31.129 0.0.0.0 UG 0 0 0 eth0 HN vzlist: Quote: # vzlist VPSID NPROC STATUS IP_ADDR HOSTNAME 1000 18 running 203.171.31.180 - VPS ifconfig Quote: # ifconfig 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:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) venet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:127.0.0.1 P-t-P:127.0.0.1 Bcast:0.0.0.0 Mask:255.255.255.255 UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1 RX packets:101 errors:0 dropped:0 overruns:0 frame:0 TX packets:122 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:7544 (7.3 KiB) TX bytes:12992 (12.6 KiB) venet0:0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:203.171.31.180 P-t-P:203.171.31.180 Bcast:203.171.31.180 Mask:255.255.255.255 UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1 VPS route: Quote: # route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 191.255.255.0 0.0.0.0 255.255.255.0 U 0 0 0 venet0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 venet0 0.0.0.0 191.255.255.1 0.0.0.0 UG 0 0 0 venet0 Tcpdump on HN for venet0 while VPS is pinging openvz.org: Quote: # tcpdump -vv -n -i venet0 tcpdump: WARNING: arptype 65535 not supported by libpcap - falling back to cooked socket tcpdump: WARNING: venet0: no IPv4 address assigned tcpdump: listening on venet0, link-type LINUX_SLL (Linux cooked), capture size 96 bytes 10:56:21.535226 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 203.171.31.180 > 69.64.46.7: ICMP echo request, id 40468, seq 0, length 64 10:56:21.965067 IP (tos 0x0, ttl 48, id 25858, offset 0, flags [none], proto: ICMP (1), length: 84) 69.64.46.7 > 203.171.31.180: ICMP echo reply, id 40468, seq 0, length 64 10:56:22.536141 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 203.171.31.180 > 69.64.46.7: ICMP echo request, id 40468, seq 1, length 64 Tcpdump on HN for eth0 while VPS is pinging openvz.org: Quote: [root@digipower ~]# tcpdump -vv -n -i eth0 dst net 69.64.46.7 tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes 10:57:26.917824 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 203.171.31.180 > 69.64.46.7: ICMP echo request, id 42772, seq 0, length 64 10:57:27.919136 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 203.171.31.180 > 69.64.46.7: ICMP echo request, id 42772, seq 1, length 64 10:57:28.923253 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: ICMP (1), length: 84) 203.171.31.180 > 69.64.46.7: ICMP echo request, id 42772, seq 2, length 64
Re: VE networking not working properly- details included.
Hi, I used the network diagnostics script ( http://forum.openvz.org/index.php?t=tree&goto=6358&# msg_6358) on this. Results are: # ./test.sh ? (203.171.31.129) at 00:0A:8A:D8:49:FF [ether] on eth0 digipower.vn (203.171.31.180) at * PERM PUP on eth0 Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 203.171.31.180 0.0.0.0 255.255.255.255 UH 0 0 0 venet0 203.171.31.128 0.0.0.0 255.255.255.192 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 0.0.0.0 203.171.31.129 0.0.0.0 UG 0 0 0 eth0 Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 191.255.255.0 0.0.0.0 255.255.255.0 U 0 0 0 venet0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 venet0 0.0.0.0 191.255.255.1 0.0.0.0 UG 0 0 0 venet0 venet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:127.0.0.1 P-t-P:127.0.0.1 Bcast:0.0.0.0 Mask:255.255.255.255 UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1 RX packets:143 errors:0 dropped:0 overruns:0 frame:0 TX packets:179 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:11080 (10.8 KiB) TX bytes:17732 (17.3 KiB) tcpdump: WARNING: arptype 65535 not supported by libpcap - falling back to cooked socket tcpdump: WARNING: venet0: no IPv4 address assigned tcpdump: listening on venet0, link-type LINUX_SLL (Linux cooked), capture size 96 bytes [[[[ CONTROL C ]]]] 0 packets captured 0 packets received by filter 0 packets dropped by kernel venet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:127.0.0.1 P-t-P:127.0.0.1 Bcast:0.0.0.0 Mask:255.255.255.255 UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1 RX packets:143 errors:0 dropped:0 overruns:0 frame:0 TX packets:179 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:11080 (10.8 KiB) TX bytes:17732 (17.3 KiB)
fixed by flushing HN firewall.. moderator, you can delte this thread, its kinda silly..
HaroldB wrote on Sun, 24 September 2006 01:45 moderator, you can delte this thread, its kinda silly.. Please don't do that. Vass asked me to write up the network diagnostics script in the wiki. Did the script help you see the problem? I need some feedback to get motivated ...