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Diffstat (limited to 'pkg/tcpip/header/ipv4.go')
| -rw-r--r-- | pkg/tcpip/header/ipv4.go | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/pkg/tcpip/header/ipv4.go b/pkg/tcpip/header/ipv4.go index 4c6e4be64..ee307d163 100644 --- a/pkg/tcpip/header/ipv4.go +++ b/pkg/tcpip/header/ipv4.go @@ -148,6 +148,13 @@ const ( // packet that every IPv4 capable host must be able to // process/reassemble. IPv4MinimumProcessableDatagramSize = 576 + + // IPv4MinimumMTU is the minimum MTU required by IPv4, per RFC 791, + // section 3.2: + // Every internet module must be able to forward a datagram of 68 octets + // without further fragmentation. This is because an internet header may be + // up to 60 octets, and the minimum fragment is 8 octets. + IPv4MinimumMTU = 68 ) // Flags that may be set in an IPv4 packet. |