MPTCP No route available/ Destination Host Unreachable

[mdhuynh]

Hi, my problem with the MPTCP code is that Pox aborted the connection halfway. Therefore, sta1 cannot connect to h4,h5 and h10.
I checked everything and it seems fine with the code about routing table. Does it have anything to do with pox? I'm using Pox 3.0 dart.
Thank you very much!

[ramonfontes]

Did you check the connection between sta and ap?

[mdhuynh]

Yes, sta1 can ping to ap2,ap3,s6,s7,s8,s9.

[ramonfontes]

Do aps and switches have IP addr? Are they OVS or USER? Aren't you pinging to localhost??

[mdhuynh]

Oh yes, my bad, it was pinging the localhost. This is the routing table for sta1, I think the connection is good
mininet-wifi> sta1 route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.0.0.254 0.0.0.0 UG 0 0 0 sta1-wlan0
10.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 sta1-wlan0
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 sta1-wlan1

[ramonfontes]

Dear,

Is sta1 connected to ap2 and ap3??

[mdhuynh]

net.addLink(ap2, sta1, 0, 0)
net.addLink(ap3, sta1, 0, 1)
Yes, I believe so.

[ramonfontes]

Could you confirm the question by using wireless tools??

[mdhuynh]

mininet-wifi> sta1 iw dev sta1-wlan0 link
Not connected.
mininet-wifi> sta1 iw dev sta1-wlan1 link
Not connected.
I'm sorry, it's not connected, is this related to the routing table right. I will check again.

[ramonfontes]

This is not related to the routing table! Please make sure that network manager is not running and hostapd is working. You can also run the code in debug level with setLogLevel('debug')

[mdhuynh]

Oh yes, it's been a long time I'm not using mininet-wifi and I always forget to turn off the network manager. I'm really sorry to trouble you. Please mark as this is resolved. Thank you very much again!

[yogiex]

hello @ramonfontes , i want to ask about ifstat in mptcp,

with mptcp every subflow must have output right? or i missed something

[ramonfontes]

Yes, you're right. Which MPTCP kernel you are using?

[yogiex]

im using v0.95

[ramonfontes]

Please double check if MPTCP is working fine and then check the L2/L3 layers in the environment setup. You can also create a small network topology in mininet to guarantee the MPTCP is working as expected.

[ramonfontes]

I'm sorry, but I have no information about your network setup. As consequence I cannot say whether something is working or not.

[ramonfontes]

Dear,

I'd appreciate if you describe the network setup. Please note that you shared a code and we cannot identify the windows in your screenshot. So please describe your network setup and the results you have with the expected results. At first, the issue tile says: MPTCP No route available. Is the issue you are trying to explain related to this issue title?

[yogiex]

ahh, im sorry, i will delete my comment