Sorry, I was incorrect I am getting packet_out's.
Aaron
On Sat, Mar 5, 2011 at 10:50 PM, Aaron Rosen aro...@clemson.edu wrote:
I've also tried this which yields the same results:
if packet.next.protocol == 0x4:
print UNENCAPED1
packet.next = packet.next.next
Hey Guys I have one more question:
I'm receiving IPIP packets and I want to unencapsulate them. I'm receiving
these packets as packet_ins and I have the follow code to handle this:
if packet.next.protocol == 0x4:
print UNENCAPED1
packet.next = packet.next.next
I've also tried this which yields the same results:
if packet.next.protocol == 0x4:
print UNENCAPED1
packet.next = packet.next.next
self.send_openflow_packet(dpid, packet.arr,openflow.OFPP_FLOOD ,
inport)
self.send_openflow_packet(dpid,
You're not doing anything wrong here. You seem to be doing something
wrong elsewhere. Specifically, you seem to have constructed an MSS TCP
option with a tuple as its value, when the value should be some sort of
integer.
-- Murphy
On Tue, 2011-03-01 at 15:22 -0500, Aaron Rosen wrote:
Hello I
Hi Murphy,
I'm just trying to connect to a computer using ssh so when I do ssh
130.127.39.235 I see these typeerror messages. I do not to anything with the
packet when it gets to the controller except tell it to flood.
The MSS of these packets are 1460 in the packet_in event.
Any idea?
Looks like the problem is in the parsing. Here's a patch:
--- a/src/nox/lib/packet/tcp.py
+++ b/src/nox/lib/packet/tcp.py
@@ -150,7 +150,7 @@ class tcp(packet_base):
elif arr[i] == tcp_opt.MSS:
if arr[i+1] != 4:
raise Exception()
-
Oh Nox is also telling me this:
Traceback (most recent call last):
File ./nox/lib/util.py, line 113, in f
event.total_len, buffer_id, packet)
File ./nox/coreapps/examples/aaronswitch.py, line 182, in
packet_in_callback
self.forward(dpid, inport, packet, packet.arr, bufid)
File
Yeah, that's a bug too.
Change line 78 in tcp.py to like...
print '(tcp_opt to_bytes) warning, unknown option type ' +
str(self.type)
.. I'd actually be interested in knowing which option it is, because
maybe we should be handling it.
You could also probably pass packet.arr instead of
If I pass packet.arr that still doesn't work. I don't get an Error
message but tcpdump says:
19:16:26.829891 IP truncated-ip - 730 bytes missing!
130.127.39.173.58832 130.127.39.235.ssh: P
2569410772:2569411564(792) ack 3106665167 win 12 nop,nop,timestamp
10172901 47037426
Also adding that
I didn't just add the + str(self.type). I also switched it to a print
from a call to self.msg() (which doesn't exist because the TCP option
class isn't a subclass of the main packet class). You should do this.
BUT... now I am suspicious. How are you getting these packets? Are
they from
These packets are from non-matches. So I guess I'm only getting 128Bytes of
the packet from this? I guess I should install a rule that sends this
packets to the controller if I want the full packet.
Thanks,
Aaron
On Tue, Mar 1, 2011 at 7:28 PM, James Murphy McCauley jam...@nau.eduwrote:
I
You CAN change how much of the packet gets forwarded from a miss, but
this is done in the switch negotiation and there's no really clean way
to change it (it's a macro in one of the openflow headers). You're
better off installing a flow.
In that case, if you're not manipulating the packets at
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