Ubuntu NAT & Port Forward
https://www.stupid.hk/wordpress/?p=1444 iptables -L nat iptables -t nat -A PREROUTING -p tcp -d 172.20.30.110 --dport 443 -j DNAT --to-destination 10....
Paloalto Firewall NAT 基本設定
由初始化到用戶可以上網, 最基本的設定, 沒有包含Security的部份
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 }...