͸ԺÒ "network" command ·ÕèÍÂÙèÀÒÂãµé router configuration mode
àÇÅÒàÃÒµéͧ configure routing protocol «Ñ¡ protocol ¹Ö§ àÃҨеéͧãÊè command "network" ·Ø¡¤ÃÑé§ áÅéÇ¡çà¡Ô´¤Ó¶ÒÁÇèÒ àÃÒãÊèà¾×èÍÍÐäà áÅéÇãÊèẺä˹ä´éºéÒ§
1. Command"network" º¹ Dynamic Routing Protocol »ÃÐàÀ· IGP àªè¹ RIPv1, RIPv2, OSPF áÅÐ EIGRP ¨ÐÁÕ¡Ò÷ӧҹ 2 ÊͧÍÂèÒ§¤×Í
a. ¶éÒ IP address º¹ Interfaceã´ match ¡Ñº command network áÅéÇ Interface¹Ñé¹æ ¡ç¨ÐÊè§
- Êè§ OSPF Hello 㹡óշÕè configurecommand network ÀÒÂãµé Command router ospf
- Êè§ EIGRP Hello 㹡óշÕè configurecommand network ÀÒÂãµé Command router eigrp
- Êè§ RIP routing update 㹡óշÕè configurecommand network ÀÒÂãµé Command router rip
b. ¶éÒ IP address º¹ Interfaceã´ match ¡Ñº command network áÅéÇ Connected Subnet º¹ Interface ¹Ñé¹æ ¶Ö§¨Ð¶Ù¡»ÃСÒÈÍÍ¡ä»
2. Command“network” º¹ Dynamic Routing Protocol »ÃÐàÀ· EGP «Öè§ÁÕ routingprotocol à¾Õ§µÑÇà´ÕÂÇã¹¢³Ð¹Õé¤×Í BGP ¨Ð·Ó§Ò¹äÁèàËÁ×͹¡Ñº IGP
router bgp xxx network 10.1.1.0 mask 255.255.255.0
â´Â command network ã¹ BGP ¨ÐËÁÒ¶֧ “network ·ÕèàÃÒµéͧ¡ÒèлÃСÒÈÍ͡仺¹ BGP routing update”«Ö觨ÐÁÕà§×è͹䢵èÍÇèÒ network áÅÐ subnet mask ·Õè¨Ð»ÃСÒȹÑé¹æ ¨ÐµéͧÁÕ¨Ãԧ㹠routingtable áÅШеéͧà»ç¹áºº exact match ¡Ñº information ã¹ routing table
«Ö觶éÒËÒ¡ network ·ÕèàÃҨлÃСÒÈ´éÇ command network ¹Ñé¹æ äÁèÁÕ¨ÃÔ§ ËÃ×ÍäÁè match ã¹ routing table áÅéÇ command network ¹Õé¡çäÁèÁÕ¼ÅÍÐäà (äÁè»ÃСÒÈ network ¹Ñé¹æ ÍÍ¡ä»)
¨Ò¡µÑÇÍÂèÒ§ command ¢Í§ router bgp áÅéÇ ¨Ðä´éÇèÒ "¨ÐµéͧÁÕ network 10.1.1.0/24 ¨Ãԧ㹠routing table ¨Ö§¨Ð·ÓãËé BGP ·Ó¡ÒûÃСÒÈ network 10.1.1.0/24 ÍÍ¡ä»´éÇ BGP routing update"
========================================================
¡ÅѺÁÒÊÙè ËÑÇ¢éÍ command "network" ã¹ Dynamic Routing Protocol »ÃÐàÀ· IGP (RIP, OSPF, áÅÐ EIGRP) ¡Ñ¹ÍÕ¡¤ÃÑ駤ÃѺ
â´Â»¡µÔáÅéÇ network command ËÃ×Í network statement ¨ÐÁÕ˹éÒ·ÕèÊͧ˹éÒ·Õè ´Ñ§¹Õé¤ÃѺ ˹éÒ·Õè·Õè 1 ¤×Í àÍÒäÇé enable routing protocol ¹Ñé¹æ º¹ interface: ¹Ñ蹤×Í ¶éÒ IP address º¹ interface ¢Í§ router match ¡Ñº network statement ¹ÕéáÅéÇ interface ¹Ñ鹨ж١ enable routing protocol ·Õè network command ¹ÕéÍÂÙèÀÒÂãµé àªè¹ ! router eigrp 100 network 172.16.1.0 0.0.0.255 !
¶éÒ router µÑǹÕéÁÕÊͧ interface àªè¹ - Fa0/0: IP address 192.168.1.1/24 - Fa0/1: IP address 172.16.1.1/24
¨Ò¡µÑÇÍÂèÒ§¨ÐàËç¹ÇèÒ: - IP address º¹ interface Fa0/0 äÁè match ¡Ñº network command ´Ñ§¹Ñé¹ router ¨ÐäÁèÊè§ eigrp hello Í͡仺¹ interface Fa0/0 ¹Õé - IP address º¹ interface Fa0/1 match ¡Ñº network command ´Ñ§¹Ñé¹ router ¨Ð·Ó¡ÒÃÊè§ eigrp hello Í͡仺¹ interface ¹Õé áÅÐËÒ¡ interface ¹ÕéµèÍÍÂÙè¡Ñº eigrp router µÑÇÍ×è¹æ ¡ç¨ÐÊÒÁÒö·Ó¡Òà form neighbor ä´é (¶éÒ AS number ·Ñé§Êͧ½Ñè§àËÁ×͹¡Ñ¹)
˹éÒ·Õè·Õè 2 ¤×Í àÍÒäÇé»ÃСÒÈ subnet º¹ interface: ¹Ñ蹤×Í ¶éÒ IP address º¹ interface ¢Í§ router match ¡Ñº network statement ¹ÕéáÅéÇ subnet ¢Í§ interface ¹Ñé¹æ ¨Ð¶Ù¡»ÃСÒȼèÒ¹ routing update ¢Í§ routing protocol (·Õè network command ÍÂÙèãµé) ä»Âѧ router µÑÇÍ×è¹æ ã¹ network àªè¹ ! router eigrp 100 network 172.16.1.0 0.0.0.255 !
¶éÒ router µÑǹÕéÁÕÊͧ interface àªè¹ - Fa0/0: IP address 192.168.1.1/24 - Fa0/1: IP address 172.16.1.1/24
¨Ò¡µÑÇÍÂèÒ§¨ÐàËç¹ÇèÒ: - IP address º¹ interface Fa0/0 äÁè match ¡Ñº network command ´Ñ§¹Ñé¹ router ¨ÐäÁè»ÃСÒÈ subnet 192.168.1.0/24 ¹ÕéÍÍ¡ä»Âѧ eigrp neighbor áÅÐÊ觼ÅãËé eigrp router ·Ø¡æ µÑÇã¹ network ÁͧäÁèàËç¹ subnet ¹Õéã¹ routing table - IP address º¹ interface Fa0/1 match ¡Ñº network command ´Ñ§¹Ñé¹ router ¨Ð·Ó¡ÒûÃСÒÈ subnet 172.16.1.0/24 ¹ÕéÍÍ¡ä»Âѧ eigrp neighbor áÅÐÊ觼ÅãËé eigrp router ·Ø¡æ µÑÇã¹ network ÁͧàËç¹ subnet ¹Õéã¹ routing table
¨Ò¡·ÕèàÃÒä´éàÃÕ¹ÁÒµÒÁàÍ¡ÊÒâͧ Cisco ÊèǹãËè àÇÅÒ·ÕèàÍ¡ÊÒâͧ Cisco áÊ´§ÍÍ¡ÁÒ¨Ðà¹é¹ãËéàÃÒãÊèã¹ÅѡɳТͧ subnet ¢Í§ interface ¹Ñé¹æ àªè¹
¶éÒ router µÑǹÕéÁÕÊͧ interface àªè¹ - Fa0/0: IP address 192.168.1.1/24 - Fa0/1: IP address 172.16.1.1/24
»¡µÔáÅéÇàÃÒ¡çÁÑ¡¨ÐãÊèã¹ÅѡɳÐ
¡Ã³Õ¢Í§ EIGRP AS 100 ! router eigrp 100 network 192.168.1.0 0.0.0.255 network 172.16.1.0 0.0.0.255 ! -------------------------------------------------------- ¡Ã³Õ¢Í§ OSPF Process 100 áÅÐà»ç¹ link ã¹ Area 0 ! router ospf 100 network 192.168.1.0 0.0.0.255 area 0 network 172.16.1.0 0.0.0.255 area 0 ! ===================================
«Öè§ã¹¤ÇÒÁà»ç¹¨ÃÔ§áÅéÇ ·Õè "network" command ¨Ðà¹é¹¤ÓÇèÒ match «Ö觹Ñè¹ËÁÒ¤ÇÒÁÇèÒ àÃÒäÁèµéͧãÊèà»ç¹ range ¡ÇéÒ§æ Ẻ subnet ´Ñ§µÑÇÍÂèÒ§·Õè¼èÒ¹ÁÒ¡çä´é àÃÒÊÒÁÒö·Õè¨ÐãÊèà»ç¹àºÍÃì IP address ¢Í§ Interface ¹Ñé¹æ áÅéǵÒÁ´éÇ wildcard mask 0.0.0.0 ä´éàÅ àªè¹
¶éÒ router µÑǹÕéÁÕÊͧ interface àªè¹ - Fa0/0: IP address 192.168.1.1/24 - Fa0/1: IP address 172.16.1.1/24
¡Ã³Õ¢Í§ EIGRP AS 100 ! router eigrp 100 network 192.168.1.1 0.0.0.0 network 172.16.1.1 0.0.0.0 ! -------------------------------------------------------- ¡Ã³Õ¢Í§ OSPF Process 100 áÅÐà»ç¹ link ã¹ Area 0 ! router ospf 100 network 192.168.1.1 0.0.0.0 area 0 network 172.16.1.1 0.0.0.0 area 0 ! =================================== «Öè§àÁ×èÍ¹Ó IP address ·Õè interface ÁÒà·Õº¡Ñº network command ¼Å¡çÂѧ¤§ match ÍÂÙèàªè¹¡Ñ¹ áÅÐ routing protocol ¡çÂѧ¤§·Ó§Ò¹ä´éµÒÁ»¡µÔ «Öè§áÅéÇÇèÒàÃÒʹ㨠ËÃ×ͪͺẺä˹¹Ð¤ÃѺ áÅÐÍÂèÒÅ×ÁÅÍ§ä» configure ¡Ñ¹´Ù¹Ð¤ÃѺ ÊÓËÃѺ·èÒ¹·ÕèÂѧäÁèà¤ÂÅͧ
äË¹æ ¡ç¾Ù´¶Ö§ network command ¡Ñ¹ÁÒàÂÍÐáÅéÇ ¼Á¢Íà¨ÒÐ network command ÀÒÂãµé command "router eigrp" ¡Ñ¹´Ñ§¹Õé¤ÃѺ
㹺ҧ¤ÃÑé§àÃÒµéͧ¡Ò÷Õè¨ÐãÊè network command Ẻà»ç¹ range ¢Í§ IP address ÀÒÂãµé command "router eigrp" ´Ñ§¹Ñé¹ network command ÀÒÂãµé "router eigrp" ÊÒÁÒöãÊèä´éÊͧẺ´Ñ§¹Õé
Ẻ·Õè 1: ãÊèẺ subnet (¤×ÍÂèͨҡ class ŧÁÒ) áÅеéͧãªé wildcard mask à¢éÒªèÇÂ
àªè¹
- 172.16.1.1 255.255.255.0 (/24) «Ö觨ÐàËç¹ÇèÒ 172.x.y.z à»ç¹ Class B ¹Ñ蹤×Í 172.16.1.1 ¨ÐÁÕ major network (network ·Õèà»ç¹ä»µÒÁ class) ¤×Í 172.16.0.0/16 ´Ñ§¹Ñé¹ §Ò¹¹ÕéàÃÒµéͧãªé wildcard mask ã¹ network command ÍÂèÒ§ËÅÕ¡àÅÕè§äÁèä´é - 192.168.1.128 255.255.255.128 (/25) «Ö觨ÐàËç¹ÇèÒ 192.x.y.z à»ç¹ Class C ¹Ñ蹤×Í 192.168.1.128/25 ¨ÐÁÕ major network (network ·Õèà»ç¹ä»µÒÁ class) ¤×Í 192.168.1.0/24 ´Ñ§¹Ñé¹ §Ò¹¹ÕéàÃÒµéͧãªé wildcard mask ã¹ network command ÍÂèÒ§ËÅÕ¡àÅÕè§äÁèä´é
¹Ñ蹤×Í
!
router eigrp 100 network 172.16.1.0 0.0.0.255
network 192.168.1.128 0.0.0.127
! ------------------------------------ Ẻ·Õè 2: ãÊèẺ major-network ¤×ÍãÊè network command µÒÁ class àÅÂ
àªè¹ - 172.16.0.0 255.255.0.0 (/16) «Ö觨ÐàËç¹ÇèÒ 172.x.y.z à»ç¹ class B áÅÐ subnet mask ¡çà»ç¹ /16 µÒÁ class ´Ñ§àªè¹¡Ñ¹ ´Ñ§¹Ñé¹àÇÅÒÊè network command áÅéÇ àÃÒäÁè¨Óà»ç¹µéͧãÊè wildcard mask ¡çä´é ¹Ñ蹤×Í - 192.168.1.0 255.255.255.0 (/24) «Ö觨ÐàËç¹ÇèÒ 192.x.y.z à»ç¹ class C áÅÐ subnet mask ¡çà»ç¹ /24 µÒÁ class ´éÇÂàªè¹¡Ñ¹ ´Ñ§¹Ñé¹àÇÅÒãÊè network command áÅéÇ àÃÒäÁè¨Óà»ç¹µéͧãÊè wildcard mask ¡çä´é ¹Ñ蹤×Í ¹Ñ蹤×Í
!
router eigrp 100 network 172.16.0.0
network 192.168.1.0
! áÅШÐä´éÇèÒ Interface ã´æ ¢Í§ router ËÒ¡ÁÕ IP address ·Õè¢Ö鹵鹴éÇ - 172.16.x.y ËÃ×Í 192.168.1.z ¡ç¨Ð¶×ÍÇèÒ match
ÊèǹàÃ×èͧ "auto-summary" ã¹ eigrp ¹Ñé¹ ·ÓäÁµéͧ "no auto-summary" ¶éÒ·èÒ¹ã´Ê¹ã¨Åͧä»Íèҹ㹠blog ·Õè¼Áà¢Õ¹äÇéµÒÁ link ¢éÒ§ÅèÒ§¹ÕéàŤÃѺ //www.bloggang.com/viewblog.php?id=likecisco&date=24-11-2011&group=3&gblog=10áÅÐ
//www.bloggang.com/mainblog.php?id=likecisco&month=13-08-2014&group=3&gblog=18
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