My Journey to CCIE
Friday, 16 December 2016
MD5 failed cisco 6509
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22:31:44.950 UTC: %TCP-6-BADAUTH: No MD5 digest from 10.10.10.1(646) to 10.10.10.2 (29167) (RST) tableid - 0 sometimes we received this er...
Thursday, 8 December 2016
upgrade your IOS in cisco, FTP, verify, and boot variable
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Today we will comment about something simple that sometime we don't remember and we have to go back to the reference. This is one smal...
Reload in cisco at or in
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Reload in cisco could be useful for testing when we enter a command and we are testing and to fix an issue. Today we will see how to to sc...
Tuesday, 22 March 2016
TLV packet EIGRP
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The IP header of the EIGRP packet specifies IP protocol number 88 within it, and the maximum length of the packet will be the IP MTU of the...
OSPF P bit
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When external routing information is imported into an NSSA, LSA Type 7 is generated by the ASBR and it is flooded within that area only. To ...
ISIS
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reference thanks to https://mellowd.co.uk/ccie/?p=5487 Basic LSPs In OSPF we use the term LSA, Link-State Advertisement. In IS-IS we u...
ISIS Multitopology and single Topology
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When working with IPv6 prefixes in IS-IS , you can configure IS-IS to be in a single topology for both IPv4 and IPv6 or to run di...
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