原创 IPSec in IBM SoftLayer (1)
Who is SoftlayerSoftLayer, an IBM Company, provides cloud infrastructure as a service from 13 data centers in the Unite
2019-02-22 18:38:42
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原创 Gratuitous ARP and DAD in Windows XP, Windows 7/Vista, Windows 8 and Failover Cluster
http://blogs.technet.com/b/networking/archive/2013/04/16/gratuitous-arp-and-dad-in-windows-xp-windows-7-vista-windows-8-
2018-09-11 07:19:06
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原创 IPSec in IBM SoftLayer Private Network (3)
(3)Customer end: Juniper SRX Firewall (policy based ***)Phase 1set security ike proposal ike-phase1-proposal authenticat
2018-09-11 07:19:06
原创 IPSec in IBM SoftLayer (2）
(2)Customer end: Juniper SRX Firewall (route based ***)Create tunnel interface, *** security zone and bind tunnel interf
2018-09-11 07:19:04
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原创 Duplicate Packet or TCP retransimission?
When you analyse the packet capture in wireshark, you sometimes see the similar/nearly same packets more than 1 time. It
2018-09-11 07:19:04
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原创 Jumbo Frame in Softlayer Network
Just performed a test at Singapore DC for Jumbo frame support.It is confirmed that Jumbo frame is supported on private n
2018-09-11 07:19:04
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原创 Question about of Softlayer IPSec
http://w3.insidepacket.net/index.php/16-softlayer-ipsec-4 Recently, one Softlayer customer complained that they have iss
2018-09-11 07:19:04
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原创 Nexus1000v Architecture based on Cisco UCS
The below is real world Nexus 1000v archicture design based on Cisco UCS.Architecture Assumption: vCenter will run wthin
2018-09-11 07:19:04
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原创 Bad OSPF summary routing due to poor IP addressing
The below is a real life example. Due to the poor IP addressing, you will see wrong OSPF summary routing has been added
2018-09-11 07:19:03
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原创 F5 wireshark plugin
When you perform packet capture on F5 LTM, you possibly notice there are some unknow fileds in the packet capture.These
2018-09-11 07:19:03
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原创 Global IP in Softlayer
Global IP's provide IP flexibility by allowing users to shift workloads between servers (even in different datacenters).
2018-09-11 06:22:43
原创 BGP Internet Routing looking Glass
As a network guy, you possinly need to check Internet Routing table for your IP range from time to time,especailly when
2018-09-11 06:22:43
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