Network Security

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Hello experts,I am trying to filter some outbound traffic but becoming confused!If  I have a network on the DMZ interface, eg 192.168.1.0/24, by default  the implicit rules allow all traffic on this network to the outside  interface but deny access t...

hi all ,I'm  planning connect VPN concentrator in our company to PIX515 DMZ interface.At the moment , VPN concentrator(used for remote access VPN for laptop users) is connected directly to core switch so as PIx515. Having VPN Concentrator connected d...

Hi, I have configured the ASA to inspect ICMP but when trying to ping from DMZ to outside I don't get any echo replies.Here is the config.policy-map global_policy class inspection_default   inspect icmpnat (DMZ,outside) source dynamic DMZ-Subnet DMZ-...

Hello all, Something that puzzles us.Normal situation:LAN > Router > Firewall > Internet.The firewall has a default route straight to the provider router, all is well.Failover situation:The firewall detects that the primary provider network is down u...

Hello Dears,When i apply this command icmp deny any outside it is blocking everything from outside even though tcp and udp  why ???,I have a permit access-list for my DMZ servers on TCP and UDP  but they are blocked once i apply the icmp deny any out...

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