Traffic to our customer's address(126.0.0.0/8) seems blocked by packet filter

Mailman List Mirror (Read Only)
1

Dear Network Operators and whom it may concern

I hope you are doing well, We are facing a difficult problem and we would like to ask your assistance!

The following address blocks were allocated from IANA to APNIC on the 27th of JAN of 2005. Please refer to the following link.
http://www.cymru.com/Documents/bogon-list.html

2

Jon, could you tell Kawano san just how many sites are still blocking 69/8? :slight_smile:

3

Dear Network Operators and whom it may concern

I hope you are doing well, We are facing a difficult problem and we would like to ask your assistance!

Makoto san, can you provide an ip-address within your assigned range that people can ping to test?

regards
joelja

4

$ ping 126.0.0.1
PING 126.0.0.1 (126.0.0.1) 56(84) bytes of data.
64 bytes from 126.0.0.1: icmp_seq=1 ttl=4 time=362 ms
64 bytes from 126.0.0.1: icmp_seq=2 ttl=4 time=362 ms
64 bytes from 126.0.0.1: icmp_seq=3 ttl=4 time=362 ms

5

>
> Dear Network Operators and whom it may concern
>
> I hope you are doing well, We are facing a difficult problem and we
> would like to ask your assistance!

Makoto san, can you provide an ip-address within your assigned range that
people can ping to test?

Someone already probably said this, but:

route-views.oregon-ix.net>sho ip bgp 126.0.0.0/8 long | inc /
* 126.0.0.0/16 206.24.210.26 0 3561 2914
17676 i
* 126.1.0.0/16 206.24.210.26 0 3561 2914
17676 i
* 126.2.0.0/16 206.24.210.26 0 3561 2914
17676 i
* 126.3.0.0/16 206.24.210.26 0 3561 2914
17676 i
* 126.20.0.0/16 206.24.210.26 0 3561 2914
17676 i
* 126.21.0.0/16 206.24.210.26 0 3561 2914
17676 i
* 126.64.0.0/16 206.24.210.26 0 3561 2914
17676 i
* 126.66.0.0/16 206.24.210.26 0 3561 2914
17676 i
* 126.68.0.0/16 206.24.210.26 0 3561 2914
17676 i
* 126.69.0.0/16 206.24.210.26 0 3561 2914
17676 i
* 126.70.0.0/16 206.24.210.26 0 3561 2914
17676 i
* 126.71.0.0/16 206.24.210.26 0 3561 2914
17676 i

> Softbank BB (AS17676) was allocated 126/8 from APNIC, and Softbank BB
> (AS17676) immediately tried to use 126/8. However Softbank BB could
> not access the famous site using 126/8, It seems some of ISPs are
> blocking 126/8 due to outdated filter.

So, routeviews doesn't see the /8 are you sending it out as a /8?

6

Number of IP's currently known to have 69/8 filter issues: 299
Number of /24 networks's currently known to have 69/8 filter issues: 261

And it's probably actually not that bad anymore. It seems a bunch of the IPs that were reachable from our old ARIN space but not 69/8 aren't reachable at all anymore. Back in late 2002 and early 2003 (when we got ours), 69/8 was much worse.

Looking through the archives, it seems that first number was initially about 1000 when we got our 69 space, and when I announced http://69box.atlantic.net/ we had:

Number of IP's currently known to have 69/8 filter issues: 683
Number of /24 networks's currently known to have 69/8 filter issues: 511

So the half life of outdated bogon filters appears to be about 2.5 years, but if you really bug people like I did initially, you can make much better progress. I basically picked the largest, most important looking networks and contacted them manually via email and phone.