Because I unfortunately don't make as much sense in Turkish as I do in English :-)
Dipnot: @Tumu: senin network bilgin gayet yeterli.. -Peter 2011/9/8 Atıf CEYLAN <[email protected]>: > Peter, neden Türkçe yazmıyorsun? > Benim kadar Türkçe bildiğini biliyorum. Mailde ddos geçince mi ilgini çekti > acaba? > > On 09/08/2011 09:39 PM, Peter Nixon wrote: > > 2011/9/8 Atıf CEYLAN <[email protected]>: > > > Merhabalar, > son zamanlarda neredeyse kesintisiz ddos aliyoruz. Ancak ilgimi ceken bir > konu var. Saldirganlardan bir bolumunu, GSM operatorlarinin /16 networkleri > icindeki yuzlerce ip adresleri olusturuyor. gsm operatorleri ip adreslerini > neye gore dagitiyorlar? Elimdeki bilgi, birbirlerine yakin bolgedeki > saldirganlari mi verir? (cografi veritabanlarindan malesef sadece > sehirlerine ulasabiliyorum.) > > > Hello Atıf > > Firstly, I apologize for responding in English.. > > If you think you are receiving malicious traffic from a Kirmizi GSM > operator, please contact me privately and I will see if I can help > you.. > > To answer your question, GSM "packet" networks are managed by one or > more access servers called a GGSN (See > http://code.peternixon.net/packetdata/wiki/GGSN ) which are quite > similar to the BRAS run by DSL operators, although GGSNs obviously > have extra GSM specific intelligence. Operators usually have only a > few GGSNs for a country like Turkey (less than 20) which means that > each GGSN typically has several hundred thousand active sessions and > therefore serves several /16 IP blocks. This means that under normal > circumstances all subscribers on the same /16 IP block will be from > the same region or city, but from an IP perspective the exact location > on the radio network is unimportant and a subscriber from Izmit may > have an IP address next to a subscriber from Gunesli. It is even > possible for a subscriber from Ankara to drive to Istanbul and still > be connected to the Ankara GGSN and there using an IP from the Ankara > IP pool, and access the internet via the Ankara internet router... > > I hope this helps explain things > > Regads > > -- > Peter Nixon > http://peternixon.net/ > > "Normal people believe that if it ain't broke, don't fix it. Engineers > believe that if it ain't broke, it doesn't have enough features yet" > Scott Adams > _______________________________________________ > Linux-guvenlik mailing list > [email protected] > https://liste.linux.org.tr/mailman/listinfo/linux-guvenlik > Liste kurallari: http://liste.linux.org.tr/kurallar.php > > > -- > /** > * @author Atıf CEYLAN > * Software Developer & System Admin > * http://www.atifceylan.com > */ > _______________________________________________ > Linux-guvenlik mailing list > [email protected] > https://liste.linux.org.tr/mailman/listinfo/linux-guvenlik > Liste kurallari: http://liste.linux.org.tr/kurallar.php > > -- -- Peter Nixon http://peternixon.net/ Normal people believe that if it ain't broke, don't fix it. Engineers believe that if it ain't broke, it doesn't have enough features yet - Scott Adams _______________________________________________ Linux-guvenlik mailing list [email protected] https://liste.linux.org.tr/mailman/listinfo/linux-guvenlik Liste kurallari: http://liste.linux.org.tr/kurallar.php
