F5 BIG-IP mac address wrong
最近在追查Cisco與BIG-IP的Phyical連接路徑, 在Cisco switch和BIG-IP裏查看一番, 以為是這樣, 結果完全不一樣, 搞得自己很混亂 上圖看到Gi0/2的mac address是0ac6, Gi0/4的mac address是0ac4 下圖看到Gi0/2對應的應該是接1...
Cisco GRE tunnel with Encryption
基本Topology設定 PC1 no ip routing ip default-gateway 192.168.0.254 int e0/0 no shut ip add 192.168.0.11 255.255.255.0 PC2 no ip routing ip default-gatewa...
Cisco Private vLAN
PC1 no ip routing int e0/0 no shut ip add 192.168.0.1 255.255.255.0 PC2 no ip routing int e0/0 no shut ip add 192.168.0.2 255.255.255.0 PC3 no ip rout...
Posted inCisco
Cisco GRE Tunnel
R1 int f0/0 no shut ip add 202.80.1.1 255.255.255.0 int f0/1 no shut ip add 192.168.0.254 255.255.255.0 int t0 ip add 10.0.0.1 255.255.255.252 tunnel ...
F5 Big-IP NAT session reset
有時在測試的時候 覺得修改好的NAT設定, 不是預期的效果, 好大機會是還未生效 tmsh show /sys connection 注意, 如果在production裏刪除session有可能用戶會發生連接中斷, 登入了的網站需要重新登入 tmsh delete /sys connection 或...
F5 BIG-IP NAT load balancer
預設路由10.0.0.254 設定2個SNAT 設定2個Pool, 留意優先次序 when CLIENT_ACCEPTED { if { [IP::addr [LB::server addr] equals "8.8.8.8"] } { pool Pool_10 snatpool SNAT_10 }...
F5 BIG-IP interface show UNINITIALIZED
如圖看到Interface全部都是UNINITIALIZED 按Create 看情怳選擇, 我是用Routed Mode 新増2個vLan, 我這個案例是沒有使用vLan Tag, Tag 4094和4093不是802.11的vLan Tag, 只是F5的一個記號, 隨便打就可以 2個Interfa...
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)...