03 Jul

Reliance Jio orignating Charter's /16 pool

 
Just noticed that Reliance Jio (AS55836) seems to be originating a /16 which is for Charter Communications (AS20115) – 47.35.0.0/16.
 

route-views>sh ip bgp 47.35.0.0/16 long | exclude 20115
BGP table version is 18764390, local router ID is 128.223.51.103
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
              x best-external, a additional-path, c RIB-compressed,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
     Network          Next Hop            Metric LocPrf Weight Path
 *   47.35.0.0/16     195.208.112.161                        0 3277 3267 174 64049 55836 i
 *                    217.192.89.50                          0 3303 6762 64049 55836 i
 *                    212.66.96.126                          0 20912 1267 64049 55836 i
 *                    162.243.188.2                          0 393406 6453 6762 64049 55836 i
 *                    192.241.164.4                          0 62567 2914 174 64049 55836 i
 *                    129.250.0.11          1007             0 2914 174 64049 55836 i
 *                    104.192.216.1                          0 46450 174 64049 55836 i
 *                    202.93.8.242                           0 24441 3491 3491 174 64049 55836 i
 *                    66.59.190.221                          0 6539 577 6762 64049 55836 i
 *                    144.228.241.130         80             0 1239 174 64049 55836 i
 *                    207.172.6.20             0             0 6079 3356 174 64049 55836 i
 *                    203.62.252.83                          0 1221 4637 174 64049 55836 i
 *                    93.104.209.174                         0 58901 51167 3356 6762 64049 55836 i
     Network          Next Hop            Metric LocPrf Weight Path
 *                    162.250.137.254                        0 4901 174 64049 55836 i
 *                    4.69.184.193             0             0 3356 174 64049 55836 i
 *                    208.51.134.254           1             0 3549 3356 174 64049 55836 i
 *                    89.149.178.10           10             0 3257 174 64049 55836 i
 *                    66.110.0.86                            0 6453 6762 64049 55836 i
 *                    134.222.87.1           650             0 286 174 64049 55836 i
 *                    95.85.0.2                              0 200130 6453 174 64049 55836 i
 *                    12.0.1.63                              0 7018 174 64049 55836 i
 *                    173.205.57.234                         0 53364 3257 174 64049 55836 i
 *                    206.24.210.80                          0 3561 174 64049 55836 i
 *                    5.101.110.2                            0 202018 2914 174 64049 55836 i
 *                    207.172.6.1              0             0 6079 3356 174 64049 55836 i
 *                    154.11.98.225            0             0 852 174 64049 55836 i
 *                    194.85.40.15                           0 3267 174 64049 55836 i
 *                    208.74.64.40                           0 19214 174 64049 55836 i
 *                    209.124.176.223                        0 101 101 174 64049 55836 i
 *                    66.185.128.48            6             0 1668 174 64049 55836 i
 *                    203.181.248.168                        0 7660 2516 6762 64049 55836 i
 *                    202.232.0.2                            0 2497 701 6762 64049 55836 i
 *                    103.247.3.45                           0 58511 64049 55836 i
 *                    193.0.0.56                             0 3333 1103 64049 55836 i
     Network          Next Hop            Metric LocPrf Weight Path
 *                    80.241.176.31                          0 20771 47872 64049 55836 i
 *>                   216.218.252.164                        0 6939 64049 55836 i
 *                    132.198.255.253                        0 1351 174 64049 55836 i
 *                    103.255.249.22                         0 58443 45177 64049 55836 i
 *                    114.31.199.1                           0 4826 174 64049 55836 i
route-views>

 
This shows Reliance Jio’s ASN AS55836 announcing 47.35.0.0/16. Charter Communications (AS20115) is originating multiple of /18s out of the same pool.
 

route-views>sh ip bgp 47.35.0.0/16 long
BGP table version is 18764237, local router ID is 128.223.51.103
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
              x best-external, a additional-path, c RIB-compressed,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
     Network          Next Hop            Metric LocPrf Weight Path
 *   47.35.0.0/18     195.208.112.161                        0 3277 3267 6939 20115 i
 *                    212.66.96.126                          0 20912 6939 20115 i
 *                    162.243.188.2                          0 393406 6939 20115 i
 *                    192.241.164.4                          0 62567 6939 20115 i
 *                    129.250.0.11          1006             0 2914 1299 20115 i
 *                    4.69.184.193             0             0 3356 20115 i
 *                    89.149.178.10           10             0 3257 3356 20115 i
 *                    194.85.40.15                           0 3267 6939 20115 i
 *                    216.218.252.164                        0 6939 20115 i

 
Let’s look for whois record of this /16 pool: https://whois.arin.net/rest/net/NET-47-32-0-0-1

NetRange: 47.32.0.0 - 47.51.255.255
CIDR: 47.32.0.0/12, 47.48.0.0/14
NetName: CC04
NetHandle: NET-47-32-0-0-1
Parent: NET47 (NET-47-0-0-0-0)
NetType: Direct Allocation
OriginAS:
Organization: Charter Communications (CC04)
RegDate: 2014-12-23
Updated: 2014-12-23
Ref: https://whois.arin.net/rest/net/NET-47-32-0-0-1

 
It seems highly unlikely that this pool has been transferred over to Jio and hence it’s highly likely that Reliance Jio is falsely advertising this pool. Possible reason for such mistake can be because they have got 47.29.0.0/16, 47.30.0.0/16 and 47.31.0.0/16 but beyond that there are few Charter Pools. So likely someone just mistyped an IP. Another possible reason for such mistype can be that they have also got 49.35.0.0/16 (it’s 49, not 47).
What is much more fascinating is that they even have a RADB route object registered for the same.

whois -h whois.radb.net 47.35.0.0
route:      47.35.0.0/16
descr:      Route Set JIO Maharastra LTE USER Pool
origin:     AS55836
notify:     Ip.abuse@ril.com
mnt-by:     MAINT-AS55836
changed:    ip.management@ril.com 20160624
source:     RADB

 
World of BGP is interesting!
 
Update:
As per update from Mr Morlay Gosh from Reliance Jio on SANOG mailing list- This was mistake and they are removing the same.
http://article.gmane.org/gmane.org.operators.sanog/2929

30 Jul

Welcome Amazon AWS AS16509 to India!

Today I spotted some routes from Amazon AWS Cloud services –  AS16509 in Indian tables. AS16509 was originating prefixes while sitting in downstream of Tata-VSNL AS4755 and Reliance AS18101. I almost missed Amazon AWS’s announcement on their blog about Indian PoPs for their DNS service – Route53 and CDN service – Cloudfront.

 

New PoP’s of Amazon in India are at Mumbai and Chennai and I see pretty much consistent BGP announcements to Tata and Reliance from these locations. Prefixes I have seen so far:

 

Unicast prefixes originated in India (for Cloufront CDN):

54.230.172.0/22
54.230.188.0/22
54.239.160.0/22
54.239.188.0/22

 

Anycast prefixes (for anycasted DNS route 53)

205.251.192.0/23
205.251.198.0/23

 

Note: I pulled these prefixes by looking at upstream peers in India (which is Tata and Reliance) and running simply sh ip bgp regexp 4755 16509sh ip bgp regexp 18101 16509 on Oregon routeviews & few other major data collection points of global IPv4 table. 

I can’t see any upstream from Airtel AS9498 or any other major Indian telco. Also at NIXI prefixes are available partially. I see prefiex at NIXI Mumbai carried by Tata VSNL. At NIXI Chennai prefixes are present with one degree prepend (AS4755 AS4755 twice) making route less preferable. While at NIXI Delhi there seems no route at all for Amazon’s prefixes (Tata follows regional route policy at NIXI). 

 

So now big question here – which datacenter is that? 

I doubt it would be Tata or Reliance since they are core competitiors and run datacenters pretty much on their own networks with almost zero carrier neutral options (few exceptions are there). My strong guess is that it’s Netmagic’s datacenter in Mumbai and Chennai with direct upstream links (bypassing Netmagic’s network). Just my guess. Cannot verify it from record of AS16509 on peeringdb.net – http://www.peeringdb.com/view.php?asn=16509

 

With that being said here’s a trace to cdn.anuragbhatia.com (which I use via Amazon Cloudfront):

Anurags-MacBook-Pro:~ anurag$ traceroute -a cdn.anuragbhatia.com
traceroute: Warning: cdn.anuragbhatia.com has multiple addresses; using 54.230.189.204
traceroute to ddlfp4nmkhyfr.cloudfront.net (54.230.189.204), 64 hops max, 52 byte packets
1 [AS1] 10.0.0.1 (10.0.0.1) 1.152 ms 0.765 ms 0.627 ms
2 [AS10223] 192.168.1.1 (192.168.1.1) 1.460 ms 2.906 ms 1.569 ms
3 [AS9829] 117.218.197.1 (117.218.197.1) 16.339 ms 17.905 ms 15.704 ms
4 [AS9829] 218.248.169.118 (218.248.169.118) 94.835 ms 29.628 ms 118.135 ms
5 [AS4755] 115.114.89.21.static-mumbai.vsnl.net.in (115.114.89.21) 60.472 ms 61.304 ms 59.103 ms
6 [AS0] 172.31.19.245 (172.31.19.245) 84.706 ms 87.201 ms 85.640 ms
7 [AS4755] 115.114.130.126.static-chennai.vsnl.net.in (115.114.130.126) 82.327 ms 83.276 ms 81.583 ms
8 [AS16509] server-54-230-189-204.maa3.r.cloudfront.net (54.230.189.204) 85.261 ms 85.185 ms 84.269 ms
Anurags-MacBook-Pro:~ anurag$

 

Always nice to maa in all these nodes at Chennai. Basically most of companies (including Google) use 3 digit airport code in name of node (in rDNS PTR record of router’s WAN IP). For Chennai (which used to be known as Madras) airport code is still MAA and this is why you will see maa in Chennai nodes and BOM on Mumbai based nodes. 🙂

 

Time to get back to work. Have a good week ahead! 🙂