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macrouteflag的含義是什么

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mac route flag的含義是什么

1.查看路由表的當(dāng)前狀態(tài)

netstat -rn

mac route flag的含義是什么

https://apple.stackexchange.com/questions/336888/whats-the-meanings-of-the-routing-tables-data-in-the-mac-os

 1       RTF_PROTO1       Protocol specific routing flag #1
2       RTF_PROTO2       Protocol specific routing flag #2
3       RTF_PROTO3       Protocol specific routing flag #3
B       RTF_BLACKHOLE    Just discard packets (during updates)
b       RTF_BROADCAST    The route represents a broadcast address
C       RTF_CLONING      Generate new routes on use
c       RTF_PRCLONING    Protocol-specified generate new routes on use
D       RTF_DYNAMIC      Created dynamically (by redirect)
G       RTF_GATEWAY      Destination requires forwarding by intermediary
H       RTF_HOST         Host entry (net otherwise)
I       RTF_IFSCOPE      Route is associated with an interface scope
i       RTF_IFREF        Route is holding a reference to the interface
L       RTF_LLINFO       Valid protocol to link address translation
M       RTF_MODIFIED     Modified dynamically (by redirect)
m       RTF_MULTICAST    The route represents a multicast address
R       RTF_REJECT       Host or net unreachable
r       RTF_ROUTER       Host is a default router
S       RTF_STATIC       Manually added
U       RTF_UP           Route usable
W       RTF_WASCLONED    Route was generated as a result of cloning
X       RTF_XRESOLVE     External daemon translates proto to link address
Y       RTF_PROXY        Proxying; cloned routes will not be scoped

在代碼中定義flag:

https://www.freebsd.org/cgi/man.cgi?query=route&sektion=4&manpath=netbsd

Flags include the values:

    #define RTF_UP   0x1     /* route usable */
    #define RTF_GATEWAY   0x2     /* destination is a gateway */
    #define RTF_HOST   0x4     /* host entry (net otherwise) */
    #define RTF_REJECT   0x8     /* host or net unreachable */
    #define RTF_DYNAMIC   0x10     /* created dynamically (by redirect) */
    #define RTF_MODIFIED  0x20     /* modified dynamically (by redirect) */
    #define RTF_DONE   0x40     /* message confirmed */
    #define RTF_MASK   0x80     /* subnet mask present */
    #define RTF_CONNECTED 0x100     /* hosts on this route are neighbours */
    #define RTF_LLDATA   0x400     /* used by apps to add/del L2 entries */
    #define RTF_STATIC   0x800     /* manually added */
    #define RTF_BLACKHOLE 0x1000    /* just discard pkts (during updates) */
    #define RTF_PROTO2   0x4000    /* protocol specific routing flag */
    #define RTF_PROTO1   0x8000    /* protocol specific routing flag */
    #define RTF_SRC   0x10000   /* route has fixed source address */
    #define RTF_ANNOUNCE  0x20000   /* announce new ARP or NDP entry */
    #define RTF_LOCAL   0x40000   /* route represents a local address */
    #define RTF_BROADCAST 0x80000   /* route represents a bcast address */

2. UCS

RTF_UP

RTF_CLONING

RTF_STATIC

3. RTF

routing flag

4. Route usable 

線路可用

看完上述內(nèi)容,你們掌握mac route flag的含義是什么的方法了嗎?如果還想學(xué)到更多技能或想了解更多相關(guān)內(nèi)容,歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道,感謝各位的閱讀!


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