NANOG@Apr 9, 2009

Date: Thu, 9 Apr 2009 15:48:32 +0000
From: "Lee, Steven (NSG Malaysia)"
Subject: Do we still need Gi Firewall for 3G/UMTS/HSPA network ?
To: "nanog@nanog.org"
Message-ID:
<084962C061414240A0CDB4BE328A9B2D119F91724A@GVW1100EXC.americas.hpqcorp.net>

Content-Type: text/plain; charset="us-ascii"

Hi all, in most of the existing 2G/2.5G mobile PS-core (Packet Switch) networks have Gi segment (interface between GGSN & IP Router/firewall). Due to the IP address constraint, operator usually do NAT on the Gi firewall to NAT the private IP to public IP in the past. Looking at the traffic pattern and user access behaviour, does it make sense to have firewall between the GGSN & Public Internet if the public IP addresses are sufficient to cater for mobile subscribers? Especially with 3G/UMTS/HSPA or even LTE in the future.

Please share your thought and thanks in advance :)

Regards,
Steven Lee


携帯ネットワークにもファイアウォールが必要か否か、という質問。
ブロードバンドネットワークにそんなもの突っ込んでないんだから要らないよ、という意見と、
古い機器が繋がってるから必要かも、という意見が出てきています。