2020. 7. 7.

[Network] arp 갱신 과정 실습


    1. 구성과 계획
    • 네트워크 구성도
    vmware Bridge 환경
    win10 - 192.168.10.146/AC-7B-A1-B2-3B-D0
    att7 - 192.168.10.150/00:0c:29:79:07:a6
    att6 - 192.168.10.149/00:0C:29:4F:41:6E
    att5 - 192.168.10.148/00:0C:29:2B:89:CB
    winXP - 192.168.10.147/00-0C-29-59-88-56

    • 과정 정리

    1. 내부
    win 10 wireshark on
    centos 6 arp cent 7 삭제
    centos 7 에서 6 ping
    wireshark arp 갱신 확인
    1. 외부
    win 10 wireshark on
    centos 6 arp 게이트웨이 arp 삭제
    centos 6 ping www.naver.com
    wireshark arp 갱신 확인

    1. 관련내용정리
    arp 지워지면 어떤식으로 되는지 갱신되는지 확인

    1. 실습과정
      1. 내부
        1. win 10 wireshark on

    1. centos 6 arp 삭제
    arp
    arp -d 192.168.10.150
    arp
    C root@att6 
Address 
192.168.1ø.15ø 
192.168.1ø.146 
192.168.1e.1 
root@att6 
root@att6 
Address 
192.168.1e.1se 
192.168.1ø.146 
192.168.1e.1 
C root@att6 
arp 
arp - 
arp 
I-outy pe 
ether 
ether 
ether 
d 192.168.1ø.15ø 
I-outy pe 
ether 
ether 
Headdress 
ac:7b:aI:b2:3b. 
Headdress 
(incomplete) 
ac:7b:aI:b2:3b. 
be 
be 
: be 
: be 
Flags 
c 
c 
c 
Flags 
c 
c 
Mask 
Mask 
Iface 
eth I 
eth I 
eth I 
Iface 
eth I 
eth I 
eth I

    1. centos 7 ping
    ping 192.168.10.146

    1. wireshark 확인
    filtering 조건
    arp
    strinf 조건
    192.168.10.149
    C root@att6 
Address 
192.168.1ø.15ø 
192.168.1ø.146 
192.168.1e.1 
root@att6 
Address 
192.168.1ø.15ø 
192.168.1ø.146 
192.168.1e.1 
root@att6 
arp 
I-outy pe 
ether 
ether 
arp 
I-outy pe 
ether 
ether 
ether 
Headdress 
(incomplete) 
ac:7b:aI:b2:3b. 
Headdress 
ac:7b:aI:b2:3b. 
be 
be 
: be 
: be 
Flags 
c 
c 
Flags 
c 
c 
c 
Mask 
Mask 
Iface 
eth I 
eth I 
eth I 
Iface 
eth I 
eth I 
eth I
    필터링 조건 arp
    스트링 필터링 조건 192.168.10.149

    1. 외부
      1. win 10 wireshark on
      2. centos 6 arp 게이트웨이 arp 삭제
    arp
    arp -d 192.168.10.1
    arp
    C root@att6 
arp 
Address 
192.168.1ø.15ø 
192.168.1ø.146 
192.168.1e.1 
root@att6 
arp - 
root@att6 
arp 
Address 
192.168.1ø.15ø 
192.168.1ø.146 
192.168.1e 
I-outy pe 
ether 
ether 
ether 
d 192.168.1ø.1 
I-outy pe 
ether 
ether 
Headdress 
ac:7b:aI:b2:3b. 
Headdress 
ac:7b:aI:b2:3b. 
(incomplete) 
be 
: be 
Flags 
c 
c 
c 
Flags 
c 
c 
Mask 
Mask 
Iface 
eth I 
eth I 
eth I 
Iface 
eth I 
eth I 
eth I
    1. centos 6 ping www.naver.com
    1. arp 확인 wireshark arp 갱신 패킷 확인
    arp
    C root@att6 
Address 
192.168.1ø.15ø 
192.168.1ø.146 
192.168.1e 
arp 
I-outy pe 
ether 
ether 
ether 
Headdress 
ac:7b:aI:b2:3b. 
be 
: be 
Flags 
c 
c 
c 
Mask 
Iface 
eth I 
eth I 
eth I
    필터링 조건 arp
    스트링 필터링 조건 be:b0
    09:29 
09:29 
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