Re: Outgoing traffic problem on Citrix Netscaler Load Balancer

2014-03-25 Thread Paul Bertain
Hi Anil,

Have you setup MBF?  I've seen that as an issue before. If you don't have a 
default route set, than MBF might help you send the response out the interface 
on which it was received. 

Paul

> On Mar 24, 2014, at 11:46 PM, Anil KARADAG  wrote:
> 
> Hi,
> 
> I setup a netscaler load balancer for sip traffic on Amazon EC2. Clients 
> packets are arrived to the backend servers over to the load balancer but any 
> responses cannot be arrived to clients. I see the responses on the load 
> balancer.
> 
> I think there is a config problem for that but I don't know and did not find 
> any solution for that. How can I fix the outbound traffic issue.
> 
> thanks
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Re: Outgoing traffic problem on Citrix Netscaler Load Balancer

2014-04-01 Thread Paul Bertain
Hi Anil,

The command is for the service or servicegroup and it is:

set service  -useproxyport (NO|YES)

Paul

> On Apr 1, 2014, at 1:38, Anil KARADAG  wrote:
> 
> My aim is forwarding all sip packages from netscaler snip:client port number 
> to backend server ip: backend server port. I tried the following scenarios;
>  
> -  “use source ip” is enabled, “use proxy port” is set no
> o   Result:  we see client port as source port but no SNIP for source 
> ip-address
> -  In additional above configured also RNAT
> o   Result: we see SNIP ip address as source ip address but source port again 
> become random.
>  
> Checked the citrix support link for rnat, but our sip packages include ‘via 
> header’ option with SNIP: client port number;
>  
> Via: SIP/2.0/UDP  SNIP:5060;received=192.168.184.13;branch=z9hZ4bb1ce74d0f-a161-43af-8f08-2d98cf702742_0efcfc5e_71732184846337
> From: Alex White-Robinson [mailto:ale...@gmail.com] 
> Sent: Tuesday, April 01, 2014 11:00 AM
> To: Anil KARADAG
> Cc: Pui Edylie; Paul Bertain; nanog@nanog.org
> Subject: Re: Outgoing traffic problem on Citrix Netscaler Load Balancer
>  
> Have you configured RNAT yet? Might tidy up your SIP problem. Do you need the 
> servers to see the client's source port, or is your issue that SIP response 
> traffic is not on the port the client expects?
> 
> Give the guide to setting up RNAT here a try - 
> http://support.citrix.com/proddocs/topic/netscaler-traffic-management-10-1-map/ns-lb-commonprotocols-sip-con.html
> 
> tl;dr though -
> set rnat  
> set lb sipParameters -rnatSrcPort 5060 -rnatDstPort 5060 -retryDur 1000 
> -addRportVip ENABLED -sip503RateThreshold 1000
>  
>  
>  
> On Tue, Apr 1, 2014 at 7:33 PM, Anil KARADAG  wrote:
> Hi again,
> 
> 
> 
> I continue to work on fixing the problem, but no success so far. Is there any 
> way to use client port number without enabling "use source ip"??
> 
> 
> 
> -Original Message-
> From: Anil KARADAG [mailto:akara...@netas.com.tr]
> Sent: Monday, March 31, 2014 3:51 PM
> To: Pui Edylie; Paul Bertain
> Cc: nanog@nanog.org
> Subject: RE: Outgoing traffic problem on Citrix Netscaler Load Balancer
> 
> 
> 
> Hi,SIP source ports destination ports
> SIP source ports destination ports
> 
> 
> Thanks for solution but I cannot use it, because backend servers must know 
> netscaler snip ip for clients. So I need fixed proxy port to communication 
> with backend servers.
> 
> 
> 
> -Original Message-
> 
> From: Pui Edylie [mailto:em...@edylie.net]
> 
> Sent: Monday, March 31, 2014 3:23 PM
> 
> To: Anil KARADAG; Paul Bertain
> 
> Cc: nanog@nanog.org
> 
> Subject: Re: Outgoing traffic problem on Citrix Netscaler Load Balancer
> 
> 
> 
> Hi Anil,
> 
> 
> 
> Take a look at
> 
> http://support.citrix.com/proddocs/topic/ns-system-10-1-map/ns-nw-ipaddrssng-enabling-use-src-ip-mode-tsk.html
> 
> - use the client's port.
> 
> 
> 
> We prefer F5 LTM much better than Netscaler :)
> 
> 
> 
> Cheers,
> 
> Edy
> 
> 
> 
> On 3/31/2014 8:17 PM, Anil KARADAG wrote:
> 
> > Hi Paul,
> 
> >
> 
> > Thanks for reply, it works :). But I have another problem; source port is 
> > altered by the virtual service. However, we need the source port to be the 
> > same on the destination servers. Is there a way to  ensure this?
> 
> >
> 
> > Thanks
> 
> >
> 
> > -Original Message-
> 
> > From: Paul Bertain [mailto:p...@bertain.net]
> 
> > Sent: Tuesday, March 25, 2014 10:47 PM
> 
> > To: Anil KARADAG
> 
> > Cc: nanog@nanog.org
> 
> > Subject: Re: Outgoing traffic problem on Citrix Netscaler Load Balancer
> 
> >
> 
> > Hi Anil,
> 
> >
> 
> > Have you setup MBF?  I've seen that as an issue before. If you don't have a 
> > default route set, than MBF might help you send the response out the 
> > interface on which it was received.
> 
> >
> 
> > Paul
> 
> >
> 
> >> On Mar 24, 2014, at 11:46 PM, Anil KARADAG 
> >> mailto:akara...@netas.com.tr>> wrote:
> 
> >>
> 
> >> Hi,
> 
> >>
> 
> >> I setup a netscaler load balancer for sip traffic on Amazon EC2. Clients 
> >> packets are arrived to the backend servers over to the load balancer but 
> >> any responses cannot be arrived to clients. I see the responses on the 
> >> load balancer.
> 
> >>
> 
> >> I think there is a config problem for that but I don't know and did not 
> >> find any solutio

Re: updating & checking DNS zone files

2008-07-05 Thread Paul Bertain
For incrementing your zone's serial number, I usually include zsu to  
whatever editor I am using.  It doesn't check the zone though.  You  
can use the aforementioned named-checkzone, etc. for that.


Paul

On Jul 5, 2008, at 5:04 PM, [EMAIL PROTECTED] wrote:


Quoting [EMAIL PROTECTED]:


Apart from using Bernstein's tinydns, anyone have any scripts
for looking for problems in zone files or for incrementing the
serial number reliably?


Check out BIND's named-checkzone and named-compilezone, depending on  
exactly what you are looking for.  There are a number of command  
line parameters for fine tuning what you care about, and you can use  
the return value to determine if the zone is valid or not.


As for the serial number, that is some simple scripting depending on  
what value you use for the serial number.


-- Jason


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Re: ATT.net

2008-08-27 Thread Paul Bertain
Internap notified us that they were shutting down their peering with  
ATT (AS7018) at their Dallas facility and was asking them to  
investigate but there were no listed causes for it.


At approximately 21:34 CDT on August 27th, 2008, we were notified  
that the

link with ATT peer (AS 7018) in the DAL PNAP was experiencing loss. We
have since shut down the peering and will asking ATT to investigate

We will be following-up with ATT immediately to investigate this  
issue.

This does not appear to be related to a hardware issue on the Internap
side, so we will open a ticket to have ATT investigate their end
immediately.


I haven't seen anything over on the "outages" yet.

Paul

Aug 27, 2008, at 7:58 PM, [EMAIL PROTECTED] wrote:




Any known issues across AT&T's network? Got a couple calls for some
access issues, I'm seeing roughly 15% loss at a couple of paths at the
AT&T network edge.