Open Stack

Hi,

Thanks for your response.
I just disabled SEG function(deployed in compute nodes).
The ICMP packets even hadn't leave network node. I cannot tcpdump packet on
qr-xx interface.

Can you introduce your demo? Havana or Icehouce? Network node kernel
version? etc.


2014-09-03 12:38 GMT+08:00 Akihiro Motoki <amotoki at gmail.com>:

> Hi,
>
> I did the same in the past for demo, and it worked well.
> Does secgroup of VM2 allow connections from VM1?
>
>
> 2014年9月3日水曜日、Germy Lure<germy.lure at gmail.com>さんは書きました:
>
>> Hi Stackers,
>>
>> Network TOPO like this: VM1(net1)--Router1-------IPSec VPN
>> tunnel-------Router2--VM2(net2)
>> If left and right side deploy on different OpenStack environments, it
>> works well. But in the same environment, Router1 and Router2 are namespace
>> implement in the same network node. I cannot ping from VM1 to VM2.
>>
>> In R2(Router2), tcpdump tool tells us that R2 receives ICMP echo request
>> packets but doesnt send them out.
>>
>> *7837C113-D21D-B211-9630-**000000821800:~ # ip netns exec
>> qrouter-4fd2e76e-37d0-4d05-**b5a1-dd987c0231ef tcpdump -i any *
>> *tcpdump: verbose output suppressed, use -v or -vv for full protocol
>> decode*
>> *listening on any, link-type LINUX_SLL (Linux cooked), capture size 65535
>> bytes*
>> * 11:50:14.853470 IP 10.10.5.2 > 10.10.5.3 <http://10.10.5.3>:
>> ESP(spi=0xc6d65c02,seq=0x1e6), length 132*
>> *11:50:14.853470 IP 128.6.25.2 > 128.6.26.2 <http://128.6.26.2>: ICMP
>> echo request, id 44567, seq 486, length 64*
>> * 11:50:15.853475 IP 10.10.5.2 > 10.10.5.3 <http://10.10.5.3>:
>> ESP(spi=0xc6d65c02,seq=0x1e7), length 132*
>> *11:50:15.853475 IP 128.6.25.2 > 128.6.26.2 <http://128.6.26.2>: ICMP
>> echo request, id 44567, seq 487, length 64*
>> * 11:50:16.853461 IP 10.10.5.2 > 10.10.5.3 <http://10.10.5.3>:
>> ESP(spi=0xc6d65c02,seq=0x1e8), length 132*
>> *11:50:16.853461 IP 128.6.25.2 > 128.6.26.2 <http://128.6.26.2>: ICMP
>> echo request, id 44567, seq 488, length 64*
>> * 11:50:17.853447 IP 10.10.5.2 > 10.10.5.3 <http://10.10.5.3>:
>> ESP(spi=0xc6d65c02,seq=0x1e9), length 132*
>> *11:50:17.853447 IP 128.6.25.2 > 128.6.26.2 <http://128.6.26.2>: ICMP
>> echo request, id 44567, seq 489, length 64*
>> * ^C*
>> *8 packets captured*
>> *8 packets received by filter*
>> *0 packets dropped by kernel*
>>
>> ip addr in R2:
>>
>> 7837C113-D21D-B211-9630-000000821800:~ # ip netns exec
>> qrouter-4fd2e76e-37d0-4d05-b5a1-dd987c0231ef ip addr
>> 187: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
>> group default
>>     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
>>     inet 127.0.0.1/8 scope host lo
>>     inet6 ::1/128 scope host
>>        valid_lft forever preferred_lft forever
>> 206: qr-4bacb61c-72: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
>> UNKNOWN group default
>>     link/ether fa:16:3e:23:10:97 brd ff:ff:ff:ff:ff:ff
>>     inet 128.6.26.1/24 brd 128.6.26.255 scope global qr-4bacb61c-72
>>     inet6 fe80::f816:3eff:fe23:1097/64 scope link
>>        valid_lft forever preferred_lft forever
>> 208: qg-4abd4bb0-21: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
>> UNKNOWN group default
>>     link/ether fa:16:3e:e6:cd:1a brd ff:ff:ff:ff:ff:ff
>>     inet 10.10.5.3/24 brd 10.10.5.255 scope global qg-4abd4bb0-21
>>     inet6 fe80::f816:3eff:fee6:cd1a/64 scope link
>>        valid_lft forever preferred_lft forever
>>
>>
>> In addition, the kernel counter "/proc/net/snmp" in namespace is
>> unchanged. These couters do not work well with namespace?
>>
>>
>> BR,
>> Germy
>>
>
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