Re: [IPCOP 1.4 - 2.0.6] pppd[19593] No response to 3 echo-requests

Am 18.01.2014 01:40, schrieb Michael Kreitner:
> I filtered for ppp.lcp pakets and I found a strange behaviour:
>
> IPCOP seems to ignore LCP ack's from IPS/DSLAM when the upload bandwith
> is under load.
>
>
> I added the trace, some background information for better reading :
> Cisco_b9:de:01 = DSLAM from ISP/Inode
> Fabiatec_04:e7:70 = WAN interface from my IPCOP
>
Hi,
my reading of the traces is as follows:
The last answered ping request from IPcop is entry 14
The requests in entries 20, 25 and 30 do not have an "Echo Reply"
as a consequence the connection is requested to be terminated in entry 35.

14    49.139909000    Fabiatec_04:e7:70    Cisco_b9:de:01    PPP LCP    
60    Echo Request
15    49.161099000    Cisco_b9:de:01    Fabiatec_04:e7:70    PPP LCP    
60    Echo Reply

20    69.150306000    Fabiatec_04:e7:70    Cisco_b9:de:01    PPP LCP    
60    Echo Request

25    89.160700000    Fabiatec_04:e7:70    Cisco_b9:de:01    PPP LCP    
60    Echo Request

30    109.171085000    Fabiatec_04:e7:70    Cisco_b9:de:01    PPP LCP    
60    Echo Request

35    129.195266000    Fabiatec_04:e7:70    Cisco_b9:de:01    PPP LCP    
60    Termination Request


>
> 35 129.195266000 Fabiatec_04:e7:70 Cisco_b9:de:01 PPP LCP 60 Termination
> Request ---> I dont know why IPCOP decides here to terminate the
> connection!!!!
>
> 36 129.277674000 Cisco_b9:de:01 Fabiatec_04:e7:70 PPP LCP 60 Termination Ack
>
> Trace:
>
> https://www.dropbox.com/s/36csf4grte84odk/ppp.lcp.only.pcapng
>
>
> I am able to reproduce this fault at any time.
>
>
> With Google I found a lot of peoples with the same problem, but I didnt
> found a solution.
>
> Maybe you have an idea?
>
> Thank you.
>
> Best regards,
>
> Michael
>
>
>


------------------------------------------------------------------------------
CenturyLink Cloud: The Leader in Enterprise Cloud Services.
Learn Why More Businesses Are Choosing CenturyLink Cloud For
Critical Workloads, Development Environments & Everything In Between.
Get a Quote or Start a Free Trial Today. 
http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk