Network Security

I have a customer who I originally configured with a site-to-site VPN using IOS Firewall on 1721/51 routers. They use IP phones on one side and have both IP sets and call control on the other (non-Cisco, sorry). The config sent intersite VoIP traff...

Apologies for my ignorance but is there any way of securing NTP coming in from an external public (ie: not owned by us) clock source into our internal network?I presume we cannot use ntp authentication because the time source is not ours?Or are you l...

Dear All,I have a problem with my PIX Firewall using IOS 6.3. the problem is when I start any Voice chat On MSN, Yahoo messenger and Netmeeting applications I got disconnecting everytime I am trying to do so....please advic me with the commands which...

Does UTLite script (for login id tracking ) supports Windows 2003 Active Directory Domain controllers ?.Thanks

I have a Cisco VPN Client (4.0.3) and can connect to my PIX 501 via IPSEc. I get an address fromn my vpn_pool but can not access the internal network, behind the PIX.Partial config below....access-list inside_outbound_nat0_acl permit ip any 192.168....

I use CiscoWorks VMS 2.1 on Windows 2000.I try setup automated action. All works fine, but when I try send $M (The entire message is passed to the script) and $D (The device name is passed to the script) I recived $M and $D. What must I do to resolv...

Hello : I have tow pix,one is pix-515,the other is pix-515E,first bios is 4.2 and 515E is 4.3,I find 515 booting is showed "CISCO SYSTEMS PIX FIREWALLEmbedded BIOS Version 4.2" ,and 515E booting is showed"CISCO SYSTEMS PIX FIREWALLEmbedded BIOS Vers...

The Docs say that it incorporated into the interface. How can this be done?

Hi,i'm trying to recover ports associated to mac addresses using SNMP.All works fine on my cat 3500 switches :"snmpwalk -c public <3500's IP> dot1dBasePortIfIndex"lists all the ports corresponding to the indexes, but on my cat 4006 I only get the por...

When we enable ssh and try to connect to pix through ssh client, we see a MD5 fingerprint. How do we see this MD5 fingerprint on Pix.

I have a vpn setup between a pix and the cisco 831. I can ping, access files on the server and so on at the pix end. The problem is accessing other subnets behind the pix. I set up acls on both ends of the vpn to allow traffic between the subnets ...

Hello everyone i have a cisco pix 506 directly attached to a cable modem, and a cisco 2621 attached to the other side leading it into the networkmy main problem is when i use my vpn client to connect to work it will not connect, and the error details...

Hi,I need to know if it is possible to use PIX firewalls with failover capability directly connecting to ISP routers. We do not have our own edge routers – This means there is no HSRP availability for PIX to route all outside traffic to one single ad...

Hi, I need to know if it is possible to use PIX firewalls with failover capability directly connecting to ISP routers. We do not have our own edge routers – This means there is no HSRP availability for PIX to route all outside traffic to one single a...