nanog mailing list archives
Re: Short-circuited traceroutes on FIOS
From: Filip Hruska <fhr () fhrnet eu>
Date: Tue, 10 Dec 2019 20:50:57 +0000
I had this issue while looking at Ripe Atlas measurements.Turns out these Verizon boxes spoof ICMP with TTL = 3 (or 2, I don't recall). Try doing a UDP or TCP based traceroute instead.
Maybe you're seeing the same problem. Kind Regards, Filip On 12/10/19 8:47 PM, Joe Maimon wrote:
Anyone have an idea why there are some destinations that on residential verizon fios here in NY area terminate right on first external hop?There seems to be a CDN common denominator here. On other networks with more typical BGP paths and traceroutes, users are reporting issues accessing these sites.C:\Users\Home>tracert www.usfoods.com Tracing route to statics.usfoods.com [205.132.109.90] over a maximum of 30 hops: 1 3 ms <1 ms <1 ms 172.18.24.1 2 4 ms 3 ms 3 ms 192.168.2.33 3 17 ms 6 ms 3 ms statics.usfoods.com [205.132.109.90] Trace complete. C:\Users\Home>tracert atworkhp.americanexpress.com Tracing route to atworkhp.americanexpress.com.akadns.net [139.71.19.87] over a maximum of 30 hops: 1 2 ms <1 ms <1 ms 172.18.24.1 2 3 ms 4 ms 23 ms 192.168.2.333 21 ms 11 ms 5 ms atworkhomepage2.americanexpress.com [139.71.19.87]Trace complete. C:\Users\Home>tracert portal.discover.com Tracing route to e14577.x.akamaiedge.net [23.51.172.254] over a maximum of 30 hops: 1 3 ms 1 ms 18 ms 172.18.24.1 2 21 ms 7 ms 6 ms 192.168.2.333 4 ms 2 ms 2 ms a23-51-172-254.deploy.static.akamaitechnologies.com [23.51.172.254]Trace complete.
-- Filip Hruska Linux System Administrator
Current thread:
- Re: Short-circuited traceroutes on FIOS, (continued)
- Re: Short-circuited traceroutes on FIOS Javier J (Dec 10)
- Re: Short-circuited traceroutes on FIOS Christopher Morrow (Dec 10)
- Re: Short-circuited traceroutes on FIOS Lee (Dec 10)
- Re: Short-circuited traceroutes on FIOS Christopher Morrow (Dec 10)
- Re: Short-circuited traceroutes on FIOS Nimrod Levy (Dec 11)
- Re: Short-circuited traceroutes on FIOS Javier J (Dec 11)
- Re: Short-circuited traceroutes on FIOS Peter Beckman (Dec 12)
- Re: Short-circuited traceroutes on FIOS Javier J (Dec 13)
- Re: Short-circuited traceroutes on FIOS Warren Kumari (Dec 13)
- Re: Short-circuited traceroutes on FIOS Stephen Frost (Dec 11)
- Re: Short-circuited traceroutes on FIOS Saku Ytti (Dec 11)
- Re: Short-circuited traceroutes on FIOS Valdis Klētnieks (Dec 11)
- Re: Short-circuited traceroutes on FIOS Etienne-Victor Depasquale (Dec 11)
- RE: Short-circuited traceroutes on FIOS Aaron Gould (Dec 12)
- Re: Short-circuited traceroutes on FIOS Javier J (Dec 12)