"Data Collation" Cisco [ACL]

Source: Internet
Author: User

"Data Collation" Cisco [ACL]

Access-list{1)  Standard access list: range:  (1 to 99)  check:  Ipusage: access-list access-list-number {permit|deny} source [wildcard-mask]test  conditions: Check all the address bits  (Match all) an ip  host address,i.e. 192.168.20.33 0.0.0.0//equivalent to: host 192.168.20.330.0.0.0 ->  check all bitsTest conditions: Ignore all the address bits  (Match any) any ip host address,i.e.  0.0.0.0 255.255.255.255//equivalent to: any255.255.255.255 - > ignore all bits#1 Permit my network only#access-list 1  permit 172.16.0.0  0.0.255.255 (implicit deny all - not visible in  the list) (access-list 1 deny 0.0.0.0   255.255.255.255) #2  deny  a specific host#access-list 1 deny 172.16.4.13 0.0.0.0  access-list 1  permit 0.0.0.0  255.255.255.255 (Implicit deny all) (access-list 1 deny  0.0.0.0   255.255.255.255) #3  deny a specific subnet#access-list 1  deny 172.16.4.0  0.0.0.255access-list 1 permit any (Implicit deny  all) (access-list 1 deny 0.0.0.0   255.255.255.255) #VTY: allow  Remote 172.16.10.3 to use vty a (config) #access-list 50 permit  172.16.10.3A (config) #line  vty 0 4a (config-if) #access-class 50 in2)  Extend  access list: range:  (100 to 199)  check:  tcp src_addr dest_ addr & protocol & portusage: access-list access-list-number  {  permit | deny&nbSP;}  protocol         source source-wildcard [operator  port]         destination destination-wildcard [  operator port ] #4  Deny FTP from  subnet 172.16.4.0 to  subnet 172.16.3.0 out of e0#access-list 101 deny tcp 172.16.4.0  0.0.0.255 172.16.3.0 0.0.0.255 eq 21access-list 101 deny tcp  172.16.4.0 0.0.0.255 172.16.3.0 0.0.0.255 eq 20access-list 101 permit  Ip any any (Implicit deny all) (access-list 101 deny ip 0.0.0.0  255.255.255.255 0.0.0.0 255.255.255.255) #5  deny only telnet from subnet  172.16.4.0  out of E0#access-list 101 deny tcp 172.16.4.0   0.0.0.255 &nbsP;any eq 23access-list 101 permit ip any any (Implicit deny all) 3)  named acla (config) #ip  access-list standard blocksalesa (config-std-nacl) #deny   172.16.40.0 0.0.0.255A (CONFIG-STD-NACL) #permit  anya (config) #int  f0/0a (config-if) #ip   Access-group blocksales out}


"Data Collation" Cisco [ACL]

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.