Russell Heilling

less info
562 reputation
612
bio website perlmonkey.blogspot.com
location United Kingdom
age 39
visits member for 5 years, 2 months
seen Aug 6 at 15:45

I have been working as a Network Engineer and Systems Administrator in ISP/Telecommunications networks since 1996. I have extensive experience the BGP, OSPF, MPLS, IPv6, VoIP, ATM, DSL, QoS and many other TLAs.

I am married with a son and three dogs. I enjoy skateboarding, cycling, reading, music and pondering on the future of networking.


Apr
29
awarded  Caucus
Feb
26
comment Doubt In default time to live (TTL) 255?
The initial value of the TTL field is set by the host transmitting the packet. As stated in this answer, the value varies and is generally left to the operating system. If the initial value is 64 then after it has passed through the first router it drops to 63 as you say. The TTL you are seeing in your ping response is counting down from the default used by the OS on your gateway router. The ICMP echo response is a new packet and will have a fresh TTL filled in, it will not count down from what was left in the TTL from the ICMP echo request.
Mar
25
awarded  Notable Question
Feb
27
awarded  Popular Question
Feb
16
awarded  Notable Question
Jul
16
awarded  Yearling
May
26
awarded  Popular Question
Apr
15
awarded  Popular Question
Aug
27
awarded  Popular Question
Jul
16
awarded  Yearling
Mar
23
awarded  Taxonomist
Dec
30
accepted Is it possible to install the Japanese Language IME on Windows XP without a CD?
Dec
30
answered Is it possible to install the Japanese Language IME on Windows XP without a CD?
Dec
30
comment Is it possible to install the Japanese Language IME on Windows XP without a CD?
Unless I could find a trusted source of the MD5 checksums of the official language pack file I would be very wary of installing anything from a torrent.
Dec
14
asked Is it possible to install the Japanese Language IME on Windows XP without a CD?
Nov
30
accepted Does Linux have an Equivalent of Windows PMTU Blackhole Router Discovery?
Nov
6
asked Does Linux have an Equivalent of Windows PMTU Blackhole Router Discovery?
Sep
7
awarded  Nice Answer
Aug
25
answered How to find out release version of an Linux OS?
Aug
19
awarded  Beta