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| Troubleshooting Zyxel dial-up routers that won't hang up |
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Problem:
When troubleshooting Zyxel routers that won't hang up, it's sometimes useful to analyze the packets that trigger the calls.
Menu 24.1 shows the packet like this:
LAN Packet Which Triggered Last Call: (Type: IP)
45 00 00 2C C2 00 40 00 7F 06 AA DD C0 A8 0C 7F C0 A8 01 1E 04 0C 00 87
00 05 07 89 00 00 00 00 60 02 20 00 DD 17 00 00 02 04 05 B4
This means very little to someone who doesn't read HEX, and even less to someone who doesn't know the specifics of the IP protocol. (i.e most of us...)
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Solution:Use our packet analyzer at http://home.atc.no/~floyd/zyxel/
Simply cut and paste the packet hex dump into the form and click " Analyze", and it will show the protocol type, sender, destination, port numbers etc. in plain text.
The analyzer can only recognize TCP, UDP and ICMP, for more advanced troubleshooting you need a real packet sniffer like SnifferPro. This one is a LOT faster if you just need the basic stuff though :-)
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