Network Security

I have a 515, running 5.3, with 5 interfaces and have a device connected to the subnet to which one of the lower-rated interfaces (it is rated 50, one beneath it is 30, and outside is 0, and two above it at 50 and 100) is attached. I can ping the lo...

Hi, anybody out there who could spare his/her time explaining, or probablyprovide a link, why was it NOT recommended to use a crossover cable toconnect the two PIX firewalls for a LAN-Based Failover setup?A summary of PROS and CONS is very much appre...

I am using Cisco 1721 and the IOS is 12.2(8) , I need to configure VPN but I can't find any crypto command, what IOS version do I need in order to configure IPsec. Also how can I check whether my IOS configure VPN, IPsec ?Thanks

Hello,I have a Cisco1721 installed running on "c1700-k9o3sy7-mz.122-8.T5.bin" for our VPN-solution. Everything looks fine in the first place, but there are some difficulties i can not solve at the moment.Users which are connected to this router have ...

Can anyone help with this strange problem I'm having withconfigurating VPN on the Cisco. I can connect with the Cisco Clientsuccesfuly, but I can only telnet to the devices which are not inaccess list 101:access-list 101 permit ip 10.3.200.0 0.0.0.2...

Hi.How can i implement connection tracking acl on pix firewall?Like cisco ios "access-list permit ip any any gt 1024 established".Thanks.

Hi!Is it possible to change the default TCP SYN timeout from 2 minutes in PIX?Oleg Tipisov,REDCENTER,Moscow

I have two problems around LAN based failover which I would be grateful for help with I have 2 PIX 535s , 1 with full license, 1 failover license. I have upgraded both IIXs to 6.22 and are configured for LAN based failover, which seems (superficiall...

Hello,I have a pix 501 with 50 hosts license. How can I see how many of those inside hosts are using the firewall in a given moment?Thanks

Our school has purchased a 525 with version 6.1(4) code on it and it will replace a pix 520 with version 5.0(1).When I installed the exact same config on the new pix, email and our proxy server were not working. Both are natted. All other non natte...

I am facing some problem with the configuration management.From last few days the configuration management is not picking up the configurations from the routers,if i update manually then also it is not doing so.Help needed!!

(Head Office Network) <-> VPN 3030 <-> (Internet) <-> PIX 501 / PPPoE / VPNC <-> (Branch Network)I can ssh and pdm to the dynamic public address of the PIX.How can I tunnel to the PIX inside address? i.e. Use telnet to the known private address inste...

Hi everyone,We're having problems downloading POP3 mail from our ISP and I'm trying to look at all avenues. It appears that during the retrieval process, there is a timeout and the message fails to download. The only messages we are having problems w...