Can SCTP bundle chunks from different streams in a single packet or do the chunks have to be from the same stream?

  • Unfortunately, the common NAT variant (NAPT) used for IPv4, does not support SCTP, only TCP, UDP, and ICMP, which is a big reason to use IPv6.
    – Ron Maupin
    Nov 22, 2021 at 3:05
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    – Ron Maupin
    Dec 24, 2021 at 0:18

1 Answer 1


Yes. SCTP packets are made of multiple chunks which can be DATA type and each DATA chunk encodes its own stream identifier (see RFC 4960 section 3.3)

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