진주성 블로그 방문하기
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보안 route access-list
2017.10.30 23:05
route access-list
Ingress Filtering
Engress Filtering
Watch Mode
Intercept Mode
- 라우터 사용모드
User EXEC 모드 Privileged EXEC 모드 Global Configuration 모드 Other Configuration 모드
- password 설정
Router> enable Router# configure terminal Router(config)# enable password XXXXX # 평문 저장 Router(config)# enable secret XXXXX # 암호화 저장 Router(config)# Router(config)# ^Z Router#
- ACL 설정
Router> enable Router# configure terminal Router(config)# no access-list 5 # 5번 삭제 Router(config)# access-list 5 permit host 192.168.1.2 Router(config)# access-list 5 permit host 192.168.1.3 Router(config)# access-list 5 deny any Router(config)# ^Z Router# sh access-list 5 # 5번 확인 Standard IP access list 5 permit 192.168.1.2 permit 192.168.1.2 deny any Router#
- 211.1.1.0/24 대역사용할때
Land Attack 차단 access-list 101 deny ip 211.1.1.0 0.0.0.255 any
ip access-group access-lister-number { in|out}
%% access-list access-list-number { permit | deny } protocol source source-wildcard [port] destination destination-wildcard [port] [ established] [log]
Ingress Filtering access-list 101 deny ip host 0.0.0.0 any
Egress Filtering interface x/y ip access-group 110 out access-list 110 permit ip 211.1.1.0 0.0.0.255 any access-list 110 permit ip 211.1.2.0 0.0.0.255 any access-list 110. deny ip any any
- Null 라우팅 설정
interface Null0 no ip unreachables ip route 211.1.1.0 0.0.0.255 Null0
- Buffered Logging 설정
logging on logging buffered 16000 debugging service timestamp log date msec local show-timezone
- snmp access-list 설정
no access-list 20 access-list 20 permit host 192.168.x.x access-list 20 deny any snmp-server community public ro 20
- Unicast RPF
>enable
#conf t
(config) # interface FastEthernet 0/0
(config-if) # ip verify unicast reverse-path
(config-if) # end
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번호 | 제목 | 날짜 | 조회 수 |
---|---|---|---|
80 | TCP 프로토콜 Header 구조 | 2017.11.01 | 1554 |
79 | TCP 상태전이 | 2017.11.01 | 614 |
78 | 전자우편 보안 | 2017.11.01 | 280 |
77 | 부팅(Booting) 과정 | 2017.11.01 | 317 |
76 | 디지털 컨텐츠 보호 | 2017.11.01 | 113 |
75 | 윈도우 보안 | 2017.11.01 | 186 |
74 | 보안솔류션 | 2017.11.01 | 218 |
73 | AD(Active Directory) | 2017.11.01 | 18593 |
72 | DNS (Domain Name Service) | 2017.11.01 | 129 |
71 | 포트스켄 | 2017.11.01 | 148 |
70 | SSL, IPSEC | 2017.11.01 | 99 |
69 | 보안관제 | 2017.11.01 | 4767 |
68 | VPN | 2017.11.01 | 5138 |
67 | 개인정보 | 2017.11.01 | 74 |
66 | 암호학 | 2017.11.01 | 814 |