VNetLab Blog

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Mikrotik Load Balance NTH vs PCC

NTH vs PCC(per connection) PCC will use multi wan for single user and can remember packet flow NTH use single wan for single user Per Connection Load Balancing (nth) Per address-pair Load Balancing (ECMP,...

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Email Spammer protection from Mikrotik

#Email#Spamming#SMTP#Protection#From#Mikrotik /ip firewall filter add action=drop chain=forward comment=”BLOCK SPAMMERS OR INFECTED USERS” dst-port=25,26,465,587 protocol=tcp src-address-list=spammer add action=add-src-to-address-list address-list=spammer address-list-timeout=1d chain=forward comment=”Detect and add-list SMTP virus or spammers” connection-limit=30,32 dst-port=25,26,465,587 limit=2,1:packet protocol=tcp connection-limit=30,32 [30 connection...

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Mikrotik VRF Lite

#Mikrotik#VRF#Lite /interface ethernet set [ find default-name=ether2 ] name=ether2-WAN set [ find default-name=ether3 ] name=ether3-LAN-1 set [ find default-name=ether4 ] name=ether4-LAN-2 /routing bgp instance add client-to-client-reflection=no name=GGC redistribute-connected=yes redistribute-other-bgp=yes router-id=192.168.24.1 routing-table=GGC /ip address add...

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Mikrotik Configuration Security Guideline

#Mikrotik Configuration#Security Guideline #Mikrotik #protection Guideline for Mikrotik Configuration Step0 [0 means do it immediately] /system package update check-for-updates /system routerboard upgrade Step1(set complex password with special character and disable default admin user)  user...

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Mikrotik Load Balancing(policy based pcc)

#Mikrotik#Load Balancing#Policy Based#PCC #Load Balancing#Load Balancing#Load Balancing Now we configure load balancing with 2 isp and every isp have primary and secondary link   172.16.67.130/30 ISP-B Primary 172.16.67.134/30 ISP-B Secondary 172.16.97.34/30 ISP-A Primary 172.16.97.38/30...

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OSPF Tshoot

#ospf #tshoot #ospf tshoot #ospf tshoot #ospf tshoot OSPF Tshoot ***OSPF Neighbor List is Empty 1. is ospf enabled on the interface ? 2. is the interface in between up/up? 3. is the interface...

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OSPF Theory

#ospf #ospf #ospf #ospf #details #theory #ospf LSA #ospf  #packet type #ospf states #ospf states All of the following fields in an OSPF hello message must match for an adjacency to form: -hello timer...

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Juniper SRX IPSEC

wan int ge-0/0/0.0 172.16.12.1 remote ip 172.16.12.2 lan int ge-0/0/1.0 192.168.1.0/24 remote ip 192.168.2.0/24 set system root plain-text-password set interfaces ge-0/0/0 unit 0 family inet address 172.16.12.1/24 set interfaces ge-0/0/1 unit 0 family inet...