On Wed, Nov 11, 2009 at 1:14 PM, narendran krishnan <[email protected] > wrote:
> thank you all for the reply. ftp is working fine after adding the > iptable rules. now i have started to dig into port forwarding to find > ways to make h323, sip work. > good. > > the basic doubt that i have is, if NATing, conntracking, Masquerading > are the functions of the BRAS. i believe a BRAS server (be it adsl or > any broadband service) assigns a private IP address to the modem/PC. > if this is the case, NATing/masquerading must happen somewhere in the > ISP network. can someone give clarity in this regard? > > BRAS will serve address from a configured poll like DHCP does. If the pool is a public pool, then public IP and likewise for private IP. BSNL for e.g serves out public IP addresses while I believe some others like serve private addresses. If an ISP serves private addresses, he will NAT and also take care that common apps work whatever protocol they may use. Mohan Sundaram _______________________________________________ To unsubscribe, email [email protected] with "unsubscribe <password> <address>" in the subject or body of the message. http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
