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What would the filter expression be to just select the protocols where the protocol = TLSV1? Something obvious like protocol == "TLSV1" or TCP.protocol == "TLSV1" is apparently not the right way.

ip.proto == "TLSV1" says "ip.proto cannot accept strings as values"

Update - additional tips:

Another great but hidden search is on PacketLength: You can add packet length to your display by clicking "Edit Preferences" (menu or icon), and adding the PacketLength as a new column, but to filter on it you have to use the more cryptic: frame.len == ### where ### is your desired number. We were using this to determine how many packets had been sent and/or received, when you filter, the status-bar at the bottom of the screen shows the number of items matching the filter.

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up vote 14 down vote accepted

ssl.record.version == 0x0301

That tells Wireshark to only display packets that are SSL conversations using TLS semantics.

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Wow, thanks! Seems like one could filter on the words on the screen instead of the crypto codes. – NealWalters Dec 28 '10 at 21:45
"ip.proto == 6"was somewhat close to what I wanted (but gives SMB and TCP as well as TLSV1) – NealWalters Dec 28 '10 at 21:47
"ip.proto" refers to the "Protocol" field in the IP header: "ip.proto == 6" means "Any TCP packet carried over IPv4". Most of Wireshark's display filters correspond to a numeric value in a given protocol header. – Gerald Combs Dec 29 '10 at 0:39
@Gerald is right. IP Protocol Number is nothing like TCP Port number, which is why it said "ip.proto cannot accept strings." – mfinni Dec 29 '10 at 1:02
FYI : Version Values dec hex ------------------------------------- SSL 3.0 3,0 0x0300 TLS 1.0 3,1 0x0301 TLS 1.1 3,2 0x0302 TLS 1.2 3,3 0x0303 – Jay D Oct 19 '15 at 23:50

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