Few days back a friend of mine (who works for an ISP) congratulated me for joining HE. Along with wishes he told me that our bgp.he.net doesn’t works well and the reason he fealt so is because he couldn’t see all peers for his ASN in our tool.
This is not a problem and to be more broader - same applies on all popular tools other then bgp.he.net like RIPE Stats, Robtex AS analysis etc.
Just was looking around at EDNS support by Google. To find how it supports and how packet looks like I created a test NS records for dnstest.anuragbhatia.com pointing to one of test server (178.238.225.247). I wasn’t running any DNS server on the server. Just ran quick tcpdump. At server end:
sudo tcpdump 'port 53 and dst 178.238.225.247' -nn -vvv -w sample.pcap Then I forcefully triggered DNS queries via Google’s recursor using:**
Came across excellent tool called “bgpq3” from one of recent posts in NANOG mailing list. This tool can general filters for a given ASN for Cisco or Juniper based on RADB’s data.
E.g Juniper style config for AS54456 (1st ASN on which I worked on!) :)
anurag@server7 ~> bgpq3 -Jl Cloudaccess as54456 policy-options { replace: prefix-list Cloudaccess { 199.116.76.0/24; 199.116.77.0/24; 199.116.78.0/24; 199.116.79.0/24; } } anurag@server7 ~> Cisco style config:
> anurag@server7:~$ bgpq3 -l Cloudaccess as54456 no ip prefix-list Cloudaccess ip prefix-list Cloudaccess permit 199.
Few months ago I moved away from Google Chrome to Opera Mobile on my Android device. Google Chrome is pretty loaded and overall slow. Recently I noticed browsing was pretty slow. I noticed that “Off-Road mode” was enabled. I disabled it and performance was much better. I did heard of it in past and clearly it’s a proxy mode where packets between Opera instance running on cell phone and destination server are routed via an Opera server which uses some special compression technologies and helps in making browsing faster.
I have been to quite a few countries but I must say Japan just stands out in internet connectivity. Overall connectivity is just amazing out here. As I landed on airport in Fukuoka, I noticed open free wifi (just one signup online form to accept TOS and it was up), later I noticed Fukuoka City Wifi project and it’s really visible across streets and very much works. As
I got to hotel, I was given SSID for wifi and it was just up!