Removed unneeded fields which are calcuated by default:

    <udp.len>
    <ipv4.len>
    <ipv4.proto>

Fixed <ipv4.id> field by changing drnd(2) -> drnd() as proto field
<drnd> function does not support bytes length value but randomizes
specified field by its length.

Signed-off-by: Vadim Kochan <vadi...@gmail.com>
---
 trafgen.8 | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/trafgen.8 b/trafgen.8
index d8ff36f..a4339ca 100644
--- a/trafgen.8
+++ b/trafgen.8
@@ -796,11 +796,11 @@ The above example rewritten using the header generation 
functions:
 .PP
    {
      # --- ethernet header ---
-     eth(da=00:1b:21:3c:9d:f8, da=90:e2:ba:0a:56:b4, proto=0x0800)
+     eth(da=00:1b:21:3c:9d:f8, da=90:e2:ba:0a:56:b4)
      # --- ip header ---
-     ipv4(len=40, id=drnd(2), mf, ttl=64, proto=17, sa=192.168.51.1, 
da=192.168.51.2)
+     ipv4(id=drnd(), mf, ttl=64, sa=192.168.51.1, da=192.168.51.2)
      # --- udp header ---
-     udp(sport=48054, dport=43514, len=20, csum=0)
+     udp(sport=48054, dport=43514, csum=0)
      # payload
      'A',  fill(0x41, 11),
    }
-- 
2.9.2

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