Learning, Sharing, Creating
Configured a cisco 2960 switch to use TekRadius as radius server for authentication and authorization. Authentication part was ok, but could not let user directly get into enable mode although…
Some Other related posts in this blog: F5 Big IP 2000s Appliance Initial Configuration F5 BigIP LTM v11.5.3 Virtual Appliance Configuration – Part 1 F5 BigIP LTM v11.5.3 Virtual Appliance…
Create a file:echo ‘This is a sekret’ >/tmp/msg.txt Export public key:openssl rsa -in ~/private.pem -out /tmp/public.pub -outform PEM -pubout Encrypt file with public key (anyone can have this key):openssl rsautl…
In our environment, there was having issue to use NSM push security update to one pair of Juniper SRX 240. NSM is the only method to get update from Internet…
For Access Mode: switchport mode access switchport nonegotiate switchport access vlan 100 For Trunk Mode:switchport trunk encapsulation dot1qswitchport mode trunkswitchport nonegotiateswitchport trunk allowed vlan 10,100switchport trunk native vlan 1 The…
Topology: IOS: c3640-jk9s-mz.124-16.bin GNS3 IOS Configuration: Changed XTERM to gnome-terminal for better copy&paste feature: In GNS3 Preference , replaced xterm -T %d -e ‘telnet %h %p’ >/dev/null 2>&1 & with…
Here are listed working IOS for MPLS LAB on GNS3: c3640-jk9s-mz.124-16 c3640-jk9s-mz.124-16a c3640-jk9o3s-mz.123-14.T7 c7200-adventerprisek9-mz.124-11.T c3725-adventerprisek9-mz.124-15.T10 Note: c3640-jk9s-mz.124-16是学习Gisco过程中最我们最常用IOS,此IOS不单单支持路由交换实验，同时还支持IPv6、VPN、VOip、MPLS-VPN 等，所以人们通常称之为全能型IOS。
When you apply policy changes, they are only applied on routes that are learned after the policy changes have been enacted. This is because BGP is most frequently implemented on…
1. Top Command top – 10:57:46 up 3 min, 2 users, load average: 1.24, 0.86, 0.35Tasks: 66 total, 3 running, 63 sleeping, 0 stopped, 0 zombieCpu(s): 0.0%us, 0.3%sy, 0.0%ni, 99.0%id,…
BGP_1#sh int g0/1 GigabitEthernet0/1 is up, line protocol is up Hardware is iGbE, address is e02f.6d05.c401 (bia e02f.6d05.c401) Internet address is 6.99.9.30/32 MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10…
Having following requirements to configure First Hop Redundancy Protocol for one environment:1. Use least public ip addresses2. Track Internet facing interface and BGP routes3. Primary router is high priority and…
Network devices usually managed through SSH services. Sometimes, those devices lost SSH access with” The remote system refused the connection.” error message presenting on the SSH client such as SecureCRT.…