Hi Anurag,
Thanks for the heads up . I had also arrived at the same inference.
I suggest the First Option is the one. The Second option, does not arise as because all is good , when Advertisement done through Other Upstream AS 132215 , all is perfect. The Folks at AS 55507 says its not there for them to check anything .
PFB Traceroute for the same.
C:\>tracert he.net
Tracing route to he.net [2001:470:0:503::2]
over a maximum of 30 hops:
1 1 ms <1 ms <1 ms 2405:201:a804:7073:1afd:cbff:fea9:e5f3
2 * * * Request timed out.
3 22 ms 21 ms 22 ms 2405:200:100::1:0:434
4 * * * Request timed out.
5 * * * Request timed out.
6 * * 214 ms
e0-50.core1.ams2.he.net [2001:470:0:58e::2]
7 215 ms * 215 ms
e0-32.core2.ams2.he.net [2001:470:0:489::2]
8 * * * Request timed out.
9 * * * Request timed out.
10 * 222 ms *
e0-33.core2.dub1.he.net [2001:470:0:410::2]
11 291 ms 289 ms 290 ms
100ge5-2.core1.nyc5.he.net [2001:470:0:440::1]
12 299 ms 299 ms 300 ms
100ge4-2.core1.nyc4.he.net [2001:470:0:20a::1]
13 273 ms 273 ms 275 ms
100ge8-1.core1.sjc2.he.net [2001:470:0:296::2]
14 367 ms 295 ms 294 ms
100ge8-2.core3.fmt1.he.net [2001:470:0:1a7::1]
15 275 ms 273 ms 273 ms he.net [2001:470:0:503::2]
Trace complete.
On 08-12-2020 17:37, Anurag Bhatia wrote:
Hi Raj
Fascinating issue! :-)
Two things:
- What do you see in the trace to any IPv6 destination like say
he.net? Does it go via your upstream? If yes then it's cause of your upstream doing source NAT on IPv6 o_O
- Maybe you have a different interface on system or router and trace goes from that instead of upstream. In that case please find why that exists!
Let us know what do you find!
Hi Folks ,
Hope you all are doing Fine. Getting a Peculiar Issue, AS 55507 is one of my Upstream, whenever I peer with him , and advertise my Prefixes on IP v$ . No IP V6 prefixes advertised, a peculiar thing happens when I go to
www.whatismyip.com
I get IP v6 Address from Reliance Jio, I asked the Folks managing the Network at AS 55507 , but they are unable to give any satisfactory explanation.
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