We've currently got a mini-6 and a NUC with two ethernet interfaces at a customers house to monitor the connection between their router and their CPE. They've been experiencing a strange issue where their router seems to be losing it's ip lease every 30 minutes or so. They work fine on a second connection they have. So we installed an active wireshark capture to try and figure out what's going on.
One strange thing we're seeing is, about 95% of the packets are being appended with a "VSS Monitoring Ethernet Trailer" to the end of them. My question is merely if there's a chance the Netonix is doing this as part of the mirroring, or how it forwards packets in anyway? Working on any possible theories, so figured we would ask.
Mini-6 port mirror strange packet appendage
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sirhc - Employee
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Re: Mini-6 port mirror strange packet appendage
What firmware version is this and you are mirroring to a port?
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Eric Stern - Employee
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Re: Mini-6 port mirror strange packet appendage
Eric Stern wrote:Likely a wireshark bug/issue. http://marc.info/?l=wireshark-bugs&m=13 ... 418327&w=2
Could be a possiblity. Perhaps just a weird way the cent os system is handling the packets and/or the dumpcap recording them. We'll read more into this.
sirhc wrote:What firmware version is this and you are mirroring to a port?
Firmware 1.3.9. Mirroring port 6 to "destination" port 2.
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