NOTE
同僚が困っている様子で、R1でアドレスが取得できないと相談しにきました。
DIAGRAM
VERIFICATION
DHCP リレーをすると送信元ポート番号は67だったのか
上段はR1-R2、下段はR2-R3
CONFIGURATION
hostname R1 ! no ip domain lookup ip cef no ipv6 cef ! interface Loopback0 ip address 10.0.0.1 255.255.255.255 ! interface FastEthernet0/0 no ip address shutdown ! interface FastEthernet0/1 ip address dhcp no shutdown ! end
hostname R2 ! no ip domain lookup ip cef no ipv6 cef ! interface Loopback0 ip address 10.0.0.2 255.255.255.255 ! interface FastEthernet0/0 ip address 10.1.2.2 255.255.255.0 ip access-group DHCP-IN in ip helper-address 10.0.0.3 no shutdown ! interface FastEthernet0/1 ip address 10.2.3.2 255.255.255.0 no shutdown ! ip route 0.0.0.0 0.0.0.0 10.2.3.3 ! ip access-list extended DHCP-IN permit udp host 0.0.0.0 eq bootpc host 255.255.255.255 eq bootps deny ip any any ! end
hostname R3 ! ip dhcp excluded-address 10.1.2.2 ! ip dhcp pool POOL-R1 network 10.1.2.0 255.255.255.0 default-router 10.1.2.2 ! no ip domain lookup ip cef no ipv6 cef ! interface Loopback0 ip address 10.0.0.3 255.255.255.255 ! interface FastEthernet0/0 ip address 10.2.3.3 255.255.255.0 ip access-group DHCP-IN in no shutdown ! interface FastEthernet0/1 no ip address shutdown ! ip route 10.1.2.0 255.255.255.0 10.2.3.2 ! ip access-list extended DHCP-IN permit udp host 10.1.2.2 eq bootpc host 10.0.0.3 eq bootps deny ip any any ! end
コメント