[c-nsp] Loughborough

2010-08-19 Thread Mario Spinthiras
Hello, Quite a while back I inquired regarding universities that deal with networking and telecomms for postgraduate (taught). I remember someone from this list replied back privately, but I can't recall who and I didn't retain that particular message. Come out come out wherever you are! Just wa

Re: [c-nsp] AUDIT

2009-10-09 Thread Mario Spinthiras
How will the audit be focused? If you are looking for security then I would start from the design board and look at a more general view of the network with focus on end to end security and device to device. You would obviously have to build a very precise topological image of the network (even in t

Re: [c-nsp] Syslog Solutions

2009-09-07 Thread Mario Spinthiras
Zenoss has syslog and snmp traps , its actually quite nice due to it's integration with the rest of the monitoring system (hierarchies , notification settings) and it also takes repetitions in a time lapse in order to avoid sending you hundreds of notifications and just sends a more reasonable amou

[c-nsp] Network related postgraduate

2009-08-14 Thread Mario Spinthiras
Dear all, I understand this isn't the usual topic found in this mailing list however I felt more answers and hints would come out of here than anywhere else. I am looking for a networking related university within the EU (preferably U.K) for postgraduate studies. I am currently a Computer Networ

Re: [c-nsp] Free NMS Tools

2009-07-03 Thread Mario Spinthiras
I would say Zenoss is looking good because of the inventory management you can do and because of the logical structure it puts everything in. I wrote an old dusty article a long long time ago on NMSs , maybe you can take a peak. http://www.spinthiras.org/2008/07/network-monitoring/ Everything else

Re: [c-nsp] Cisco DSLAM ?

2009-06-10 Thread Mario Spinthiras
Haven't had much DSLAM hands on but the Allied Telesis iMAP range is nice. Regards, Mario ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

Re: [c-nsp] Combining multiple vlans into a single vlan.

2008-12-15 Thread Mario Spinthiras
I know on the Allied Telesis boxes you can do VLAN translations from one vlan to another. Is there no way of doing multiple translations on a Cisco? Havent really had the need to do something like this before however I guess bridge groups could be useful. How would you overcome the STP problems tha

Re: [c-nsp] OPSF over a Lan-to-Lan VPN tunnel

2008-12-15 Thread Mario Spinthiras
use a gre tunnel. i have a tutorial here on it. http://www.spinthiras.net/2007/11/24/vpn-via-tunnel-interfaces/ do that n run ospf on top. remember that tunnel ifaces are to be treated like normal ifaces, regards, mario ___ cisco-nsp mailing list ci

Re: [c-nsp] ASA 5520 inside interface used for Clients Default Gateway

2008-12-12 Thread Mario Spinthiras
If you have a default rule for NAT then have you tried adding an exemption in the NAT list for th eparticular network? Can you give me more of an insight on the network , addressing , interfaces , routes and security rules? Regards, Mario A. Spinthiras http://www.spinthiras.net/ ___

Re: [c-nsp] IPSec between Cisco and D-Link

2008-12-12 Thread Mario Spinthiras
I dont think thats the problem. It looks like the transform sets don't match. Don't forget that ACLs come prior to phase 2. Regards, Mario A. Spinthiras http://www.spinthiras.net/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.

Re: [c-nsp] IPSec between Cisco and D-Link

2008-12-11 Thread Mario Spinthiras
How about the actual problem so we can help there? Logs , errors? ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

Re: [c-nsp] Cisco DSLAM Product Line

2008-12-10 Thread Mario Spinthiras
Jeremy, I don't know if your looking for Cisco DSLAMS but I Allied Telesis make the iMAPs which are very well designed DSLAMS. I used them for basic xDSL testing back in the days I was in industry but they were incompatible with a SS so we didnt buy them for that. We did however use them for metro

Re: [c-nsp] automated network monitorgin

2008-12-10 Thread Mario Spinthiras
And please forgive the bad spelling and grammar. It happens sometimes. Regards, Mario A. Spinthiras http://www.spinthiras.net/ On Wed, Dec 10, 2008 at 7:48 PM, Mario Spinthiras <[EMAIL PROTECTED]> wrote: > Dear all, > > I posted an email to this list a while back regarding netwo

[c-nsp] automated network monitorgin

2008-12-10 Thread Mario Spinthiras
Dear all, I posted an email to this list a while back regarding network monitoring. I came up with a theory which I would like to share with the world which might be something interested though I dont know due to the diversity of network design today. My question are essentially the following , W

[c-nsp] cisco networking research

2008-11-28 Thread Mario Spinthiras
Hello guys n gals, Honestly , this is coffee number 4 , and I hate decaf. I have a proposal to write at uni and obviously I want it related to Cisco networking. I was thinking something on monitoring and management systems. Any ideas thrown at me are more than welcome. Regards, Mario A. Spinthir

Re: [c-nsp] Cisco 3560 to Dell 6248 Trunking?

2008-11-15 Thread Mario Spinthiras
Do you want to do trunking or manage vlans automatically over a trunk? Dot1Q should take care of the trunk part. I could have sworn Ive used GVRP on a 3560 before but I am not sure , it could have been a 3570 or something. Regards, Mario. ___ cisco-nsp m

Re: [c-nsp] Multiple Ethernet links for redundancy

2008-11-08 Thread Mario Spinthiras
thats very true. If you rely on etherchanneling then you are effectively relying on lower layer redundancy. If you go higher , then you rely on the normal operation of L3 , etc... Regards, Mario A. Spinthiras http://www.spinthiras.net/ ___ cisco-nsp mail

Re: [c-nsp] Multiple Ethernet links for redundancy

2008-11-07 Thread Mario Spinthiras
Most beneficial is to port-channel the interfaces. This is clever in many ways. Handling the interface redundancy any other way complicates things IMHO. With a port-channel interface you have more bandwidth and redundancy. Regards, Mario http://www.spinthiras.net/ On Fri, Nov 7, 2008 at 8:30 PM,

Re: [c-nsp] Network Management

2008-10-30 Thread Mario Spinthiras
Zenoss by far! You can also read my own pain on systems like this at : http://www.spinthiras.net/2008/07/17/network-monitoring/ Hope zenoss fit's your setup. Regards, Mario ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/

Re: [c-nsp] Restric access in a VPN tunnel

2008-10-24 Thread Mario Spinthiras
Why cant he leave his acl for the crypto map alone and simply apply the relevant access list on the interface to restrict specific entries? Will this affect his vpn (don't think so) ? Regards, Mario ___ cisco-nsp mailing list cisco-nsp@puck.nether.net h

Re: [c-nsp] Network Management System

2008-10-22 Thread Mario Spinthiras
Hello All, Since I have dug in to find a respectable monitoring/management system in the past , I might as well shre my 2p with you all. To begin with no monitoring system out there really cuts it simply because they are based on bad design. All of them including the top notch ones which I will n

Re: [c-nsp] NMS for l2vpn service instance

2008-10-20 Thread Mario Spinthiras
have you tried zenoss? ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/

Re: [c-nsp] route-map ftp connection

2008-10-16 Thread Mario Spinthiras
Nbar is more sensible since you don't only have to pass ftp via your access-list to match the route-map but ftp-data also. Regards, Mario ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at

Re: [c-nsp] SNMP Monitoring VPN Traffic

2008-09-26 Thread Mario Spinthiras
Dont want to be going too off topic here but is there an OID that can return the number of IPSEC tunnels active and RA users logged on? When I used to work for an ISP in Cyprus that did a lot of work with IPSEC I had to prepare an automated shell script that logged on to the routers and retrieved t

Re: [c-nsp] Debugging Cisco VPN Client Software ... Is it even possible ?

2008-09-26 Thread Mario Spinthiras
Note: Not that I'm badmouthing Vista or anything. Wouldn't want to spoil a carrer oportunity at MS when Im done with Uni :) I am preparing a little something on IPSEC troubleshooting with a few example scenarios (basic and advanced) to perhaps help people focus on the important bits in IPSEC (we a

Re: [c-nsp] Debugging Cisco VPN Client Software ... Is it even possible ?

2008-09-25 Thread Mario Spinthiras
Ive found that Vista in the past has given me issues. What you can try doing is disabling unnecessary protocols on the relevant adapters while as keeping the specific one required by the virtual VPN adapter that it creates. To be honest I found a viable solution by rebooting into Ubuntu , deleting

Re: [c-nsp] Layer 2 security issue

2008-09-25 Thread Mario Spinthiras
Does traffic which has specific mac addys (in band mgmt traffic , vtp , etc..) have something to do with this? ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/piper

Re: [c-nsp] GVRP implementation

2008-09-24 Thread Mario Spinthiras
So if I wanted my VLAN db to be on a server , i.e a nice web interface implemented in an IPAM , are you saying I cant run a software that generates VTP messages for propagation simply because VTP is proprietary? Do all IOS not implement GVRP ? ___ cisco-n

[c-nsp] GVRP implementation

2008-09-23 Thread Mario Spinthiras
Hello All, Before planning a small deployment I wanted to know if any of you had made use of GVRP (via GARP) on production Cisco machines. Do they provide the same result as does VTP? Regards, Mario. http://www.blupenguin.com/ ___ cisco-nsp mailing lis

Re: [c-nsp] c4000

2008-09-22 Thread Mario Spinthiras
Wouldn't it be a lot wiser to migrate to IOS ? I know this is possible and I'm sure it's a step forward than anything else. Can anyone shed some light on the worthiness of migrating to IOS other than the obvious (consistency , easier) Regards, Mario ___

Re: [c-nsp] c4000

2008-09-22 Thread Mario Spinthiras
I presume the only difference in setting up vlans would show in CatOS which I haven't used and not sure people do today compared to IOS. If I remember correctly through my Cisco training CatOS is something like set vlan %x while as it should be straight forward with IOS using vlan %x in global con

[c-nsp] IPV6 IPAM

2008-09-21 Thread Mario Spinthiras
Greetings, First off forgive me if I am a bit off topic but I needed a list where people from the ISP/NSP sector reside and what better place than the cisco mailing list. I am currently in the works of developing an open source ipv6 IPAM with extensive features aimed at the ISP/NSP userbase. Worki

Re: [c-nsp] Traffic on IPSec Tunnel btw Pix and Router

2008-08-08 Thread Mario Spinthiras
Plus it would be great if you could run a packet-trace and paste it here. -- Warm Regards, Mario A. Spinthiras http://www.spinthiras.net/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive a

Re: [c-nsp] Traffic on IPSec Tunnel btw Pix and Router

2008-08-08 Thread Mario Spinthiras
crypto ip-sec df-bit clear/set ? If you have mismatches on either ends you can see "unencrypted" traffic on one end while normal signs of operation on the other. Warm Regards, Mario A. Spinthiras http://www.spinthiras.net/ ___ cisco-nsp mailing list ci

Re: [c-nsp] IPsec Throughput on Cisco 800 series routers

2008-07-30 Thread Mario Spinthiras
Since it is PPPoE and IPSEC on the top then I would say play a little with your MTU since IPSEC and PPPoE demand a chunk from it. Then you have to consider the size of your encrypted packets. Do you do payload or datagram encryption (mode)? A really good way I recently tuned an IPSEC tunnel was wi

Re: [c-nsp] Surviving denial of service from certain IPs

2008-07-25 Thread Mario Spinthiras
/ps6537/ps6586/ps6642 > /prod_white_paper0900aecd80313fac.pdf<http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6586/ps6642/prod_white_paper0900aecd80313fac.pdf> > > Let me know if you require further info. > > Arie > > -Original Message- > From: [EMAIL

[c-nsp] Surviving denial of service from certain IPs

2008-07-25 Thread Mario Spinthiras
Greetings to everyone, I recently looked into the minimal resource usage of a Cisco router in the case of a denial of service attack. In such cases what is the minimal configuration one can apply to a router to make sure that a certain range of IPs attacking you keeps the router alive and uses mu

Re: [c-nsp] PPPoE tunnel and Firewall

2008-07-24 Thread Mario Spinthiras
It will not. If you are looking into something along the lines of DPI or even standard filtering per ip/port it will still work. PPPoE is L2 encapsulation. It will still look for the L3 information inside the frame. On Thu, Jul 24, 2008 at 11:29 PM, Masood Ahmad Shah <[EMAIL PROTECTED]> wrote: >

Re: [c-nsp] route-map local destination device

2008-07-24 Thread Mario Spinthiras
deny ip any 10.1.1.1 0.0.0.0 On Fri, Jul 25, 2008 at 2:15 AM, Dan Letkeman <[EMAIL PROTECTED]> wrote: > Hello, > > I have a router that is doing some route-map's for various > destinations. On the fa0/0 port I have "ip policy route-map inet" and > the route-map's are done like this > > route-map

Re: [c-nsp] Nemtwork Management System for ip-multicast at layer 2

2008-07-24 Thread Mario Spinthiras
I am not aware of specific NMSs that do this but a best bet would be to explore Zenoss which might be able to help you out with their zenpack plugins and a few external binaries. Regards, Mario. On Thu, Jul 24, 2008 at 11:30 AM, Sergey Voropaev <[EMAIL PROTECTED]> wrote: > Salute guys! > > Could

Re: [c-nsp] Cisco WLC 4404 Snmp problems

2008-07-24 Thread Mario Spinthiras
Plenty to be honest. Paste a "show run | sec snmp" . Do you declare an ACL to protect snmp? Is the host you checked from authorized to access snmp? Is snmp configured correctly? Regards, Mario ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https:/

Re: [c-nsp] Port-Channel Setup Issues

2008-07-24 Thread Mario Spinthiras
I would like to see both (physical) ports configuration , and I would also like to see a summary of your etherchannels (show etherchannel 1 summary). did you set both modes on both physical interfaces to on ? Are you doing PagP on both ? I would suggest LACP (channel-protocol lacp). I also notice y