Is ping not supposed to work via proxychains?

Question

The ping program being the implementation of ICMP protocol (and it being based on raw sockets instead of TCP or UDP sockets), I'm not sure if it is supposed to work via a program like proxychains.

For example, when I try the following, the program remains hung forever until I Ctrl-C it:

[root@hostA tmp]# proxychains ping www.google.com
ProxyChains-3.1 (http://proxychains.sf.net)
|DNS-request| www.google.com 
|S-chain|-<>-127.0.0.1:4000-<><>-4.2.2.2:53-<><>-OK
|DNS-response| www.google.com is 209.85.175.103
PING  (209.85.175.103) 56(84) bytes of data.

   ( ***** HUNG HERE FOREVER! ***** )

However, a program like curl works just fine:

[root@hostA tmp]# proxychains curl http://thin.npr.org > page.html
|DNS-request| thin.npr.org 
|S-chain|-<>-127.0.0.1:4000-<><>-4.2.2.2:53-<><>-OK
|DNS-response| thin.npr.org is 216.35.221.76
|S-chain|-<>-127.0.0.1:4000-<><>-216.35.221.76:80-<><>-OK
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  2295  100  2295    0     0    284      0  0:00:08  0:00:08 --:--:--   565

[root@hostA tmp]# ls -l page.html 
-rw-r--r--. 1 root root 2339 Jun 29 17:37 page.html

Note also that I can ping www.google.com fine from another Internet-enabled machine without using proxychains. In other words, www.google.com seems very much to be a ping-able server.

Answer 1

I guess not. If you have a look at http://proxychains.sourceforge.net/ it explicitly states it supports TCP and DNS (which actually can be UDP or TCP)

You can find a similar answer to it here: http://www.backtrack-linux.org/wiki/index.php/Proxychains

In general proxies don't support ICMP traffic. Neither does Proxychains