libpcap1.5.3 regression

gistfile1.txt

dario@curie ~/nixpkgs (pcapbug)> 
/nix/store/s29l8m50xv0qxwvchvzf4znqs2z2dzcz-nmap-6.47/bin/nmap --version

Nmap version 6.47 ( http://nmap.org )
Platform: x86_64-unknown-linux-gnu
Compiled with: nmap-liblua-5.2.3 openssl-1.0.1l nmap-libpcre-7.6 libpcap-1.4.0 nmap-libdnet-1.12 ipv6
Compiled without:
Available nsock engines: epoll poll select
dario@curie ~/nixpkgs (pcapbug)> 
sudo /nix/store/s29l8m50xv0qxwvchvzf4znqs2z2dzcz-nmap-6.47/bin/nmap -sS -vv 10.129.121.20 -n

Starting Nmap 6.47 ( http://nmap.org ) at 2015-03-30 14:49 BST
Initiating Ping Scan at 14:49
Scanning 10.129.121.20 [4 ports]
Completed Ping Scan at 14:49, 0.07s elapsed (1 total hosts)
Initiating SYN Stealth Scan at 14:49
Scanning 10.129.121.20 [1000 ports]
Discovered open port 21/tcp on 10.129.121.20
Discovered open port 22/tcp on 10.129.121.20
Completed SYN Stealth Scan at 14:49, 1.71s elapsed (1000 total ports)
Nmap scan report for 10.129.121.20
Host is up (0.029s latency).
Scanned at 2015-03-30 14:49:33 BST for 2s
Not shown: 998 closed ports
PORT   STATE SERVICE
21/tcp open  ftp
22/tcp open  ssh

Read data files from: /nix/store/s29l8m50xv0qxwvchvzf4znqs2z2dzcz-nmap-6.47/bin/../share/nmap
Nmap done: 1 IP address (1 host up) scanned in 1.87 seconds
           Raw packets sent: 1050 (46.176KB) | Rcvd: 1001 (40.048KB)
dario@curie ~/nixpkgs (pcapbug)>



dario@curie ~> 
/nix/store/qb0pfarpvqj49svhpx44kvlsz2qb63aj-nmap-6.47/bin/nmap --version

Nmap version 6.47 ( http://nmap.org )
Platform: x86_64-unknown-linux-gnu
Compiled with: nmap-liblua-5.2.3 openssl-1.0.1l nmap-libpcre-7.6 libpcap-1.5.3 nmap-libdnet-1.12 ipv6
Compiled without:
Available nsock engines: epoll poll select
dario@curie ~> 
sudo /nix/store/qb0pfarpvqj49svhpx44kvlsz2qb63aj-nmap-6.47/bin/nmap -sS -vv 10.129.121.20 -n
[sudo] password for dario: 

Starting Nmap 6.47 ( http://nmap.org ) at 2015-03-30 14:57 BST
Initiating Ping Scan at 14:57
Scanning 10.129.121.20 [4 ports]
Completed Ping Scan at 14:57, 0.21s elapsed (1 total hosts)
Initiating SYN Stealth Scan at 14:57
Scanning 10.129.121.20 [1000 ports]
Discovered open port 21/tcp on 10.129.121.20
Discovered open port 22/tcp on 10.129.121.20
Increasing send delay for 10.129.121.20 from 0 to 5 due to 184 out of 612 dropped probes since last increase.
Increasing send delay for 10.129.121.20 from 5 to 10 due to 28 out of 93 dropped probes since last increase.
Increasing send delay for 10.129.121.20 from 10 to 20 due to 15 out of 49 dropped probes since last increase.
Increasing send delay for 10.129.121.20 from 20 to 40 due to 11 out of 31 dropped probes since last increase.
Increasing send delay for 10.129.121.20 from 40 to 80 due to 11 out of 23 dropped probes since last increase.
Increasing send delay for 10.129.121.20 from 80 to 160 due to 11 out of 35 dropped probes since last increase.
Increasing send delay for 10.129.121.20 from 160 to 320 due to 11 out of 31 dropped probes since last increase.
Increasing send delay for 10.129.121.20 from 320 to 640 due to max_successful_tryno increase to 4
Completed SYN Stealth Scan at 15:02, 291.44s elapsed (1000 total ports)
Nmap scan report for 10.129.121.20
Host is up (0.021s latency).
Scanned at 2015-03-30 14:57:24 BST for 292s
Not shown: 998 closed ports
PORT   STATE SERVICE
21/tcp open  ftp
22/tcp open  ssh

Read data files from: /nix/store/qb0pfarpvqj49svhpx44kvlsz2qb63aj-nmap-6.47/bin/../share/nmap
Nmap done: 1 IP address (1 host up) scanned in 291.72 seconds
           Raw packets sent: 1798 (79.088KB) | Rcvd: 1212 (48.476KB)
dario@curie ~>