[113257] in North American Network Operators' Group
Do we still need Gi Firewall for 3G/UMTS/HSPA network ?
daemon@ATHENA.MIT.EDU (Lee, Steven (NSG Malaysia))
Thu Apr 9 11:59:57 2009
From: "Lee, Steven (NSG Malaysia)" <kin-wei.lee@hp.com>
To: "nanog@nanog.org" <nanog@nanog.org>
Date: Thu, 9 Apr 2009 15:48:32 +0000
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Hi all, in most of the existing 2G/2.5G mobile PS-core (Packet Switch) netw=
orks have Gi segment (interface between GGSN & IP Router/firewall). Due to =
the IP address constraint, operator usually do NAT on the Gi firewall to NA=
T the private IP to public IP in the past. Looking at the traffic pattern a=
nd user access behaviour, does it make sense to have firewall between the G=
GSN & Public Internet if the public IP addresses are sufficient to cater fo=
r mobile subscribers? Especially with 3G/UMTS/HSPA or even LTE in the futur=
e.
Please share your thought and thanks in advance :)
Regards,
Steven Lee=
