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Traceroute management
by Dylan Ebner 10 Jun '09

10 Jun '09

My company uses it's internet connection primarily for VPN tunneling. I have always wanted a tool that I can enter the peer ip addresses and it will every 8 or 12 hours run a traceroute and log it so I can build historical maps of the path our traffic is taking. Has anyone ever seen any apps like this, preferably something that is free. Thanks

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Coax wiring. MoCA between neighbors.
by Dongsu Han 10 Jun '09

10 Jun '09

Hi All, I'm trying to find out how coax cables are wired in a residential area to each house. I found out that "drop amp" amplifies the signal just out side the building, and a few neighbors share the drop amp (basically a powered splitter). What other devices are there? I'm also trying to find out whether my neighbors would be able to overhear the MoCA signal from my apartment. Anyone knows the answer? For example, my apartment building has a cabinet that concentrates all coax cables from all units, and the 2~4 coax cables are attached to a device in the cabinet. I'm assuming it is a drop amp and I think MoCa signals can travel across the drop amp. Is my guess correct? Any comments on coax cable wiring between houses or apartments and MoCA technology would be very useful. Thank you, Dongsu

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Eye protection in DWDM systems -- what threshold?
by Deepak Jain 09 Jun '09

09 Jun '09

At what power level do DWDM systems become dangerous to work near (i.e. not staring into any optics, using light meters, etc)? I never see technicians on inside DWDM systems using eye protection, but I see power levels of amps going higher and higher. On a recent meter I saw almost .6mW... Any pointers to a document saying 1550nm becomes dangerous at xxxx dbM? Thanks in advance, DJ

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Multi site BGP Routing design
by Justin Krejci 09 Jun '09

09 Jun '09

We have two geographically distinct locations that currently both fall under the same ASN. At site 1 we have a particular set of ip networks (/20 and bigger) in use only locally to this site At site 2 we have a separate set of ip networks (/20 and bigger) in use only locally to this site Each site has at least one upstream internet connection advertising with BGP. There is also a (reliable) private link between to the two sites where our routers at each site are all talking iBGP (as well as ospf). There is a router subnet (/27) that spans the two sites. We currently advertise all subnets out all upstream connections as if both sites were only one and traffic routes between sites without issue via the private link. If the private link between the two sites fails, will BGP allow for us to access the IP subnets at site 2 from site 1 via the internet given that both sites are advertising under the same ASN? Is this a case where having multiple ASNs makes sense to treat each site as remote peers to each other? Thanks, Justin

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End User Internet Monitoring for Supervisor recommendations
by JoeSox 09 Jun '09

09 Jun '09

I have a friend in a shop that is not running any robust Websense like applications. They are looking for a freeware solution or possibly inexpensive solution just for a few requests not for the entire company. I used one a while back but I since have lost the information and that PC that I dropped the application on has since been rebuilt. Does anyone have any recommendations that meet the following requirements: 1) A Supervisor can navigate to a url to see end user's internet activity. 2) Freeware or close to it -- Thank You, Joe

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iBGP advertisement interval
by kysks 08 Jun '09

08 Jun '09

Hello. Nanog I thought BGP advertisement interval is the following. ibgp : 5 second, ebgp : 30 second. But, now I realize that the default ibgp interval of Cisco is 0 second. (ios 12.0 & IOX) (it displays "Default minimum time between advertisement runs is 0 seconds") When did it change? ^^; I wonder if No interval time for bgp advertisement would bring insecure network by flapping network. Do you think I have to change the default value of interval time to longer? And I 'm curious about what the default value of Juniper router is. Because I have to implement with the Juniper and Cisco mixed.

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We need your lightning talks!
by Joel Jaeggli 08 Jun '09

08 Jun '09

Folks, Lightning talk submissions are being accepted for the monday tuesday wednesday slots. Lightning talks are short (10 minutes), topical and timely. and done at the last minute. Submissions are made through the NANOG PC's talk submission tool: https://pc.nanog.org/login.php Unlike general session materials, they do not require the advanced submission of slides. Lightning talks submitted by jun 8 will be voted on by the PC on our call just prior to the start of nanog 46. Lightning talks will continue to be accepted through tuesday of the conference. The sooner you get your abstract in, the higher the probablity that we will be able to accept your talk. Thanks Joel

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EU elections - piratenpartei.net censored
by Peter Dambier 08 Jun '09

08 Jun '09

Hello, right during the election the website piratenpartei.net of the german pirates party gets censored by the hoster. alfahosting.info Good advertising, isn't it? Interestingly enough their website is down too. Afraid of emails I guess. Kind regards Peter -- Peter and Karin Dambier Cesidian Root - Radice Cesidiana Rimbacher Strasse 16 D-69509 Moerlenbach-Bonsweiher +49(6209)795-816 (Telekom) +49(6252)750-308 (VoIP: sipgate.de) mail: peter(a)peter-dambier.de http://www.peter-dambier.de/ http://iason.site.voila.fr/ https://sourceforge.net/projects/iason/ ULA= fd80:4ce1:c66a::/48

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Template for PE router configuration
by devang patel 05 Jun '09

05 Jun '09

Hello, Is there any good document about PE router configuration template or any sample configuration some one can share, if possible? I am looking for the PE configuration template which has multiple MPLS VPN customer as well as PPPoE aggregation on it. regards Devang Patel

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savvis
by Randy Bush 05 Jun '09

05 Jun '09

we have a routing issue within savvis <http://puck.nether.net/netops/nocs.cgi?ispname=savvis> says to contact ssc(a)savvis.net and ipnoc(a)savvis.net the latter does not answer email. the former is invalid ... while talking to cluster9.us.messagelabs.com.: >>> DATA <<< 550 Invalid recipient <ssc(a)savvis.net> (#5.1.1) 550 5.1.1 <ssc(a)savvis.net>... User unknown <<< 503 RCPT first (#5.5.1) could someone with routing filter fu at savvis please contact us out of band? thanks. randy

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