Network Security

I work on the company helpdesk, and I was asked a question in passing that I would like an answer to.I understand that L2TP uses GRE to tunnel. I would like to know how internal gateways on the internet and local LAN routers, and ABR's know how to r...

HiI am going to upgrade my PIX(520)software version from 6.2 to 6.3(3).But I want take backup of existing version 6.2copy flash tftp--This command does not exist.Is there any way to copy existing software for backup ??Please help me.Ishwar

I have two 520 PIX running in failover mode on 5.3.3 version. I am getting a message on Primary such as "(Secondary) Lost Failover communications with mate on interface X" and then if I do show failover, it says that its doing testing on both interfa...

Is there a way to put a Mobile IP home agent behind a PIX ? I've got two public IPs, want to PAT one on the outside of the PIX and forward/translate one to the home agent. Anyone done this? Can it be done? Thanks.

I am connecting to a PIX 515 via windows / Linux Cisco VPN clients, however when I connect to the VPN my local LAN is disabled. I have checked the option to allow local LAN access when connected to the VPN however I am still locked out. After doing s...

I am trying to get a PIX working with an ADSL modem. It seems that the modem has a fixed IP of 192.168.0.1 and is configured with a dhcp client using http on this address. Having been configured with the ISP etc the modem then 'remembers' the MAC add...

HICan anyone tell me what is the size of PIX firewall version 6.3(3).Ishwar

I tried to put a command"telnet x.x.x.x outside" but, I can not telnet to this outside interface ip address. I can ping it but never get response back from thsi pix outside ip.I am runing ver 6.2I am confused, any idea ?thanks

Has anyone tried to setup the same IP address range on both the inside and outside interfaces of the PIX? I.E. 192.168.33.0 255.255.255.0 mask (inside) 192.168.19.0 255.255.255.0 mask (DMZ1). Tried IP NAT at the FW and it does not solve the problem. ...

I want to be able to translate connections from external hosts to a range of internal addresses. For instance, I want PCAnywhere users who connect to a public address through the Internet to see all the PCAnywhere hosts on my internal network.In thi...

Hello!!Recently , I upgrade my pix 515-ur from 6.1 to 6.33I feel something wrongthis is my static command , it works fine on ver 6.1 static(inside,outside) tcp 123.123.123.123 domain 192.168.254.49 domain dns netmask 255.255.255.255static(inside,out...

Hello,Is there any way to, after adding access-lists and assigning them to an interface....then capture what traffic (IP address) is hitting the interface and setting off the access-list. For example setting up an access-list to deny traffic to port ...