Posted inCisco
EIGRP Metric 計算
以下為預設value K1 = K3 = 1 K2 = K4 = K5 = 0 Metric公式 Metric = 256*((K1*Scaled Bw) + (K2*Scaled Bw)/(256 – Load) + (K3*Scaled Delay)*(K5/(Reliability + K4)...
Posted inCisco
EIGRP offset-list
現在PC2到PC1的路經: PC2 -> R2 -> R1 -> PC1 利用eigrp的offset-list更改路由, PC2 -> R2 -> R3 -> R1 -> PC1 PC1 ip 10.1.1.10/24 10.1.1.1 PC2 ip 20...
Posted inCisco
Cisco Policy Based Routing(PBR)
PC1: 10.0.0.1 Server1: 192.168.5.1 (config)#access-list 100 permit ip host 10.0.0.1 host 192.168.5.1 (config)#route-map PC1toServer1 permit (config-ro...
GNS3 + Ubuntu
sudo add-apt-repository ppa:gns3/ppa sudo apt update sudo apt install gns3-gui gns3-server sudo dpkg --add-architecture i386 sudo apt update sudo apt ...
Posted inCisco
Remove Cisco Stack with state Provisioned
# sh run | inc provision switch 1 provision ws-c3750x-48p switch 2 provision ws-c3750x-48 switch 3 provision ws-c3750x-48 # conf t (config)# no switch...
Posted inCisco
access-list in & out
vLan 16: 10.20.16.0/24 vLan 80: 192.168.80.0/24 int vlan 16 ip access-group 116 in ip access-group 126 out access-list 116 permit ip 10.20.16.0 0.0.0....
Posted inCisco
cisco renumber stack
sh run to backup all interface settings interface GigabitEthernet1/0/1 switchport access vlan 13 shutdown spanning-tree portfast interface GigabitEthe...
Posted inCisco
layer 2 traceroute
2F-ASW-2960S-5#sh mac add | inc 1/0/1 80 fcf1.52ef.aea1 DYNAMIC Gi1/0/1 9F-CSW-3750-1#sh mac add | inc 3/0/43 80 00e0.4c0b.cd09 DYNAMIC Gi3/0/43 80 00...
Posted inCisco
Cisco SNMP v3 settings
snmp-server group {Group Name} v3 priv read v1default snmp-server user {ID} {Group Name} v3 auth sha {SHAKEY} priv aes 128 {AESKEY}
Posted inCisco
Cisco upgrade stack IOS Automatic (.tar image)
Use Master to do the upgrade, it will be put IOS to others Stack members, and auto run "boot system xxx" show switch detail ...