destination nat and masquerading
Verifying NAT and PAT Configuration
... command: Gateway(config)#access-list permit 10.10.10.0 0.0.0.255 Step Define the NAT translation from inside list to outside pool To define the NAT translation, use the ip nat inside source command: ... outside interfaces with respect to NAT To this, use the ip nat inside or ip nat outside command: Gateway(config)#interface fastethernet Gateway(config-if)#ip nat inside Gateway(config-if)#interface ... = = Step 12 Verify NAT / PAT Statistics a To view the NAT and PAT statistics type the show ip nat statistics command at the privileged exec mode prompt b How many...
- 7
- 346
- 0
Troubleshooting NAT and PAT
... command: Gateway(config)#access-list permit 10.10.10.0 0.0.0.255 Step Define the NAT translation from inside list to outside pool To define the NAT translation, use the ip nat inside source command: ... respect to NAT To this, use the ip nat inside command: Gateway(config)#interface fastethernet Gateway(config-if)#ip nat inside Step 11 Testing the configuration a Turn on debugging for the NAT process ... Gateway(config-if)#ip nat outside From the workstations, ping 172.16.1.1 If the ip nat outside statement was entered correctly there should be output from the debug ip nat command e What does the NAT* : S=10.10.10.?...
- 7
- 284
- 0
Tài liệu Lab 1.1.5 Verifying NAT and PAT Configuration ppt
... command: Gateway(config)#access-list permit 10.10.10.0 0.0.0.255 Step Define the NAT translation from inside list to outside pool To define the NAT translation, use the ip nat inside source command: ... outside interfaces with respect to NAT To this, use the ip nat inside or ip nat outside command: Gateway(config)#interface fastethernet Gateway(config-if)#ip nat inside Gateway(config-if)#interface ... = = Step 12 Verify NAT / PAT Statistics a To view the NAT and PAT statistics type the show ip nat statistics command at the privileged exec mode prompt b How many...
- 7
- 479
- 0
Tài liệu Lab 1.1.6 Troubleshooting NAT and PAT pdf
... command: Gateway(config)#access-list permit 10.10.10.0 0.0.0.255 Step Define the NAT translation from inside list to outside pool To define the NAT translation, use the ip nat inside source command: ... respect to NAT To this, use the ip nat inside command: Gateway(config)#interface fastethernet Gateway(config-if)#ip nat inside Step 11 Testing the configuration a Turn on debugging for the NAT process ... Gateway(config-if)#ip nat outside From the workstations, ping 172.16.1.1 If the ip nat outside statement was entered correctly there should be output from the debug ip nat command e What does the NAT* : S=10.10.10.?...
- 7
- 417
- 0
Tài liệu Nortel VPN Router Configuration — Firewalls, Filters, NAT, and QoS pdf
... source and destination “Interface-specific rules (Source rules)” on page 47 and “Interface-specific rules (Destination rules)” on page 48 Source rules define the selected interface as the source Destination ... firewall, and NAT Traffic—logs the creation or removal of flows and conversations Policy manager—logs firewall processes and the creation of rules and policies Firewall—logs how the firewall handles ... network The filters are defined by • • • • • protocol ID direction source and destination IP addresses source and destination port TCP connection establishment You create a list of rules for a...
- 154
- 419
- 0
Cisco Systems - Scaling the network with NAT and Pat pot
... Describe the features and operation of NAT on Cisco routers • Use Cisco IOS commands to configure NAT, given a functioning router • Use show commands to identify anomalies in the NAT configuration, ... v2.0—6-17 Using the debug ip nat Command Router#debug ip nat NAT: s=192.168.1.95->172.31.233.209, d=172.31.2.132 [6825] NAT: s=172.31.2.132, d=172.31.233.209->192.168.1.95 [21852] NAT: s=192.168.1.95->172.31.233.209, ... [6826] NAT* : s=172.31.1.161, d=172.31.233.209->192.168.1.95 [23311] NAT* : s=192.168.1.95->172.31.233.209, d=172.31.1.161 [6827] NAT* : s=192.168.1.95->172.31.233.209, d=172.31.1.161 [6828] NAT* :...
- 21
- 491
- 0
designing and implementing linux firewalls and qos using netfilter iproute2 nat and 17 - filter
... and module are all used interchangeably Module Event Handler Whenever a KLD is loaded into or unloaded from the kernel, a function known as the module event handler is called This function handles ... sysctl You can also dispense with module handlers if you wish and just use SYSINIT and SYSUNINIT directly to register functions to be invoked on load and unload, respectively You can’t, however, ... unloads, and will return with an error (EOPNOTSUPP)2 on shutdown and quiesce 1.2 The DECLARE_MODULE Macro When a KLD is loaded (by the kldload(8) command, described in Section 1.3), it must link and...
- 164
- 652
- 0
Using NAT and PAT statements on the cisco secure PIX firewall
... addresses/ports only Policy NAT uses both source and destination addresses/ports Note: All types of NAT support policy NAT except for NAT exemption (nat access−list) NAT exemption uses an access ... enable policy NAT Policy NAT allows you to identify local traffic for address translation by the specification of the source and destination addresses (or ports) in an access list Regular NAT uses ... policy NAT in that the ports are not considered With policy NAT, you can create multiple NAT or static statements that identify the same local address as long as the source/port and destination/ port...
- 8
- 421
- 0
NAT and PAT toàn tập pptx
... mạng nội Router(config-if)# ip nat inside - Xác định interface kết nối bên Router(config-if)#ip nat outside Ví dụ: NAT Overload Giới thiệu NAT Overload dạng Dynamic NAT, thực ánh xạ nhiều địa private ... Router(config)#ip nat inside sourece static 10.1.1.2 172.69.68.10 Router(config)#interface Ethernet Router(config-if)#ip nat inside Router(config)#interface serial Router(config-if)#ip nat outside Dynamic NAT ... (public) định trước gán cho host bên mạng (private) Cấu hình Dynamic NAT - Các câu lệnh dùng dynamic NAT Router(config)#ip nat pool name start_ip end_ip { netmask netmask | prefix-length prefix-length...
- 7
- 400
- 3
Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT, and filter phần 1 pot
... of Contents Chapter 4: NAT and Packet Mangling with iptables A Short Introduction to NAT and PAT (NAPT) SNAT and Masquerade DNAT Full NAT (aka Full Cone NAT) PAT or NAPT NAT Using iptables Setting ... mother, and my sister—I love you very very much Many thanks go to the team at Globtel who were like second family to me, to my girlfriend for understanding me and standing by me, to Louay and the ... Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT, and L7-filter Learn how to secure your system and implement QoS using real-world scenarios...
- 29
- 396
- 0
Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT, and filter phần 2 pps
... send data • Destination Port: The port number used by the receiving host to receive data • Length: The number of bytes in header and data • Checksum: Calculated checksum of the header and data fields ... and RARP are found at both the Internet and network access layers Also, you can see that the TCP/IP network access layer contains LAN and WAN technologies that are found at the OSI physical and ... theoretical model and it is very useful in the learning process On the other hand, the Internet was built on the TCP/IP model, and so, TCP/IP is the most popular due to its usage and its protocols...
- 29
- 478
- 0
Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT, and filter phần 4 docx
... on the NAT router (e.g 2143), and whenever a request comes from the Internet with the destination IP address 217.156.123.3 and the destination port 2143, the NAT router rewrites the destination ... not initiated by 192.168.1.3 (this is simple destination NAT) [ 95 ] NAT and Packet Mangling with iptables In other words, full NAT is SNAT and DNAT as presented earlier This is the function ... the destination, and so we can change the source IP address if that path is outside our network (SNAT) [ 100 ] Chapter Let's have a look at this diagram to visualize how DNAT and SNAT work DNAT...
- 29
- 344
- 0
Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT, and filter phần 5 pps
... Translation and IP packet mangling using netfilter/iptables We saw: • What Network Address Translation is • Types of NAT: SNAT or Masquerading, DNAT, full cone NAT • Requirements for performing NAT with ... source destination DNAT all 0.0.0.0/0 1.2.4.1 to:192.168.1.50 DNAT tcp 1.2.5.17 1.2.4.2 tcp dpt:80 to:192.168.1.100 DNAT tcp 0.0.0.0/0 1.2.4.2 tcp dpt:65521 to:192.168.1.100:22 DNAT tcp ... the source IP address 192.168.10.60 and destination 192.168.20.60 Linux Router looks in its PREROUTING chain and matches the rule that says to change the destination IP address to 192.168.1.60...
- 29
- 390
- 0
Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT, and filter phần 6 pps
... ############# Begin the NAT table operations ###### #Flush all the rules in the nat table $IPT -t nat -F #Load some modules needed for NAT /sbin/modprobe ip _nat_ ftp /sbin/modprobe ip _nat_ irc #DNAT the gaming ... 0.0.0.0/0 0.0.0.0/0 destination When an IP packet arrives into the Linux router, in the nat table the PREROUTING chain is analyzed first If the packet arrives on eth0 and has the destination UDP port ... IPT=/sbin/iptables ############# Begin the NAT table opperations ###### #Flush all the rules in the nat table $IPT -t nat -F #SNAT sales and accounting to port 53 UDP (DNS) $IPT -t nat -A POSTROUTING -o eth0...
- 29
- 242
- 0
Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT, and filter phần 7 ppt
... DROP #Dnat port 1433 - SQL server $IPT -t nat -A PREROUTING –s 1.1.4.1 -p tcp dport 1433 -j DNAT to $PREFIX.2 #NAT $IPT $IPT $IPT $IPT all to -t nat -t nat -t nat -t nat the internet Don't nat ... 0/0 -j DROP #Dnat port 1433 - SQL server $IPT -t nat -A PREROUTING –s 1.1.4.1 -p tcp dport 1433 -j DNAT to $PREFIX.2 #NAT all to the internet Don't nat to network at HQ $IPT -t nat -A POSTROUTING ... all Rules $IPT –F #Flush all the rules in the nat table $IPT -t nat -F #Load some modules needed for NAT /sbin/modprobe ip _nat_ ftp /sbin/modprobe ip _nat_ irc [ 178 ] Chapter #deny SSH access except...
- 29
- 287
- 0
Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT, and filter phần 8 pps
... ########## NAT table ######## #Flush Nat Rules $IPT -t nat -F #load some modules for nat to work better /sbin/modprobe ip _nat_ ftp /sbin/modprobe ip _nat_ irc #MASQ internal departments $IPT -t nat -A ... that it uses a 'control' port and a 'data' port FTP runs only on TCP, and by standard, it uses port 21 (FTP) for control (connecting and issuing commands to the server) and port 20 (FTP data) for ... Information Rate, and it's the minimum guaranteed bandwidth, and MIR means Maximum Information Rate, and it's the maximum bandwidth a user can get We will show in this example how to make bandwidth allocation...
- 29
- 331
- 0
Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT, and filter phần 9 pptx
... engineers realize there's a problem, afterwards finding out the destination IP address of the flood and actually filtering the destination IP address So, when dealing with DDoS attacks in a network ... software bugs, and technical support from producers • Well-known and well-defined technical limitations • Standard protocol implementations • High market value of the network and the following ... building a good and secure firewall is to design the network in an intelligent way, identify points of security, and understand how packets are flowing through the network When designing and deploying...
- 29
- 337
- 0
Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT, and filter phần 10 doc
... add command 75 ip addr command 75 ip addr del command 75 ip addr flush dynamic command 75 ip link command 75 ip monitor command 75 ip tunnel command 75 network configuration 74 rtacct command 75 ... flowid 1:100 If the customer wants to have an internet bandwidth of 512kbps and national network bandwidth of 1Mbps, but doesn't care about the national network, then the metropolitan traffic is considered ... 1.1.10.3 ports 3000 and 3001 TCP and 1.1.10.50 ports 5000 and 5001 TCP This is all we need for the PGW2200 machines We will be a bit paranoid and will deny all other traffic to and from these machines...
- 24
- 301
- 0
Tìm thêm: khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu nội dung cụ thể cho từng kĩ năng ở từng cấp độ xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct mở máy động cơ rôto dây quấn hệ số công suất cosp fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến tốc độ rôto n fi p2 đặc tuyến dòng điện stato i1 fi p2 động cơ điện không đồng bộ một pha sự cần thiết phải đầu tư xây dựng nhà máy thông tin liên lạc và các dịch vụ phần 3 giới thiệu nguyên liệu từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008 chỉ tiêu chất lượng 9 tr 25