TP-Link "Address Reservation" vs "IP & MAC Binding"

dairyman123

TP-Link 的教學提供兩種為裝置鄉定 IP 的方法，請問有什麼分別？
是否只是不同的介面，所以功能的名不一樣？
舊的綠色介面只可鄉定32個 IP ，新的藍色介面有鄉定 IP 的數量上限嗎？

如何在 TP-Link 無線路由器上設定位址保留
https://www.tp-link.com/tw/support/faq/182/

如何進行TP-Link路由器與MAC位址的綁定(藍色介面)?
https://www.tp-link.com/tw/support/faq/1566/

謝謝

wyhui5124

1. TP-Link 的教學提供兩種為裝置鄉定 IP 的方法，請問有什麼分別？

呢隻係舊款router interface, default router IP係192.168.1.1


呢隻係新款router interface, default router IP係192.168.0.1

2. 是否只是不同的介面，所以功能的名不一樣？
新/舊款機同firmware分別

3. 舊的綠色介面只可鄉定32個 IP ，新的藍色介面有鄉定 IP 的數量上限嗎？
呢個就唔知喇,一般好少用呢個功能,一係自己set fix IP落部機度,一係用DHCP address reservation

dairyman123

...
3. 舊的綠色介面只可鄉定32個 IP ，新的藍色介面有鄉定 IP 的數量上限嗎？
呢個就唔知喇,一般好少用呢個功能,一係自己set fix IP落部機度,一係用DHCP address reservation
wyhui5124 發表於 2019-4-7 06:42

請問"Address Reservation" 和 "IP & MAC Binding" 同時一齊用，會有衝突嗎？
新少少的機同時有2個功能。

wyhui5124

請問"Address Reservation" 和 "IP & MAC Binding" 同時一齊用，會有衝突嗎？
新少少的機同時有2個功能。 ...
dairyman123 發表於 2019-4-7 10:18

    其實呢兩樣野係唔同用途嘅:

簡單D講,IP&Mac Binding係最無敵嘅,就算部PC offline咗,其他機手動"扮"佢個IP入router都唔會俾佢上倒網;至於address reservation,假如部PC offline咗,其他機手動"扮"佢個IP入router係用倒喞

    "DHCP address reservation" specifically means that the router will always offer the given address whenever the host asks for one using the DHCP auto-configuration protocol.

    However, only DHCP offers were made static, but the router's IP→MAC neighbour cache (aka the ARP cache) is still filled in dynamically using ARP.

    Meaning, if you bypass DHCP and manually configure another host to use the reserved address, it'll work. As soon as the "IP → old MAC" cache entry expires, the router sends a new ARP query, learns the new MAC address, adds "IP → new MAC" to the ARP cache, and packets go to the 'new' host.

    "ARP binding" won't necessarily affect DHCP, but it does add a fixed IP→MAC entry to the router's neighbour cache.

    If another host tries to use the same IP address, the router won't know that. It will trust the fixed IP→MAC binding, and will always send packets to the "bound" MAC address, even if the host is actually offline.

    (Note, though: When two hosts within the same subnet communicate, they don't go through the router but send packets directly to each other. So they'll use their own neighbour caches, but will not be affected by the ARP binding done on the router. Only Internet traffic will be affected.)

https://superuser.com/questions/ ... address-reservation


另外,最新router firmware已經將IP&Mac Binding改咗放响security度
https://www.tp-link.com/tw/support/faq/1536/

dairyman123

英文太高深，睇唔明。
如果要為每個裝置綁定一個IP，以上兩個方法都達到效果？
可以同時使用兩個功能嗎？

alanh999

回覆 5# dairyman123


    "IP & MAC Binding" seems to be a better solution. You don't need both but either one.