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Jeff
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@fryguy_pa

Jeff

@fryguy_pa
CCIE R&S, JNCIE-ENT/SEC, DVC Member, Ford Mustang, Father, Son, & Husband. Tweets are my own and mine alone. JNCIE Workbk fryguy.me/JNCIEENTWB
Northampton, PA
fryguy.net
Joined June 2008
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  • @fryguy_pa
    Jeff
    @fryguy_pa
    Aug 31
    New tool: paste raw traceroute/tracert/ping output, get an instant visual hop chain or latency chart — timeouts, latency jumps, and dropped packets flagged automatically. All in your browser, nothing uploaded.
    fryguy.net
    New Tool - Traceroute / Ping Visualizer
    New on the Network Tools page: a Traceroute / Ping Visualizer. Paste raw output from traceroute, Windows tracert, or ping and it turns the wall of text into something you can actually read at a...
  • @fryguy_pa
    Jeff
    @fryguy_pa
    Aug 24
    New tool: SecureCRT → SuperPutty session converter. Drop in your SecureCRT XML export, get a ready-to-import SuperPutty Sessions.xml back instantly — all in your browser, nothing uploaded.
    SecureCRT to SuperPutty Session Converter
    From fryguy.net
  • @fryguy_pa
    Jeff
    @fryguy_pa
    Aug 19
    New tool: VLAN/QinQ Tag Overhead Calculator. Cisco/Juniper default QinQ's outer tag to 0x8100, FortiGate defaults to 0x88a8 — mismatched, a trunk silently corrupts traffic. Check vendor interop first.
    New Tool - VLAN / QinQ Tag Overhead Calculator
    From fryguy.net
  • @fryguy_pa
    Jeff
    @fryguy_pa
    Aug 17
    Most protect-RE filters get copy-pasted once and never updated, so neighbor lists drift out of sync. Built a Junos lo0 filter generator where BGP/NTP/RADIUS/SNMP allow-lists pull live from the real config via apply-path. Nothing to maintain twice.
    fryguy.net
    New Tool - Juniper Protect-RE Filter Generator
    Also new on the Network Tools page: a Juniper Protect-RE Filter Generator — builds the lo0.0 input firewall filter every RE-bound packet passes through, regardless of which interface or destination...
  • @fryguy_pa
    Jeff
    @fryguy_pa
    Aug 14
    MTU breakage is silent — packets stop working somewhere in the path with no indication where. Built a tool that probes every hop to find the exact size and router where fragmentation kicks in. Python/bash/PowerShell/Go, same behavior everywhere.
    fryguy.net
    MTU Path Test — Find Where a Path Silently Fragments, Hop by Hop
    MTU problems are some of the most annoying things to troubleshoot in networking, because they’re usually silent. Small packets sail through fine, everything looks healthy, and then someone complains...