fr_ttl
{ DOALL(fr->fr_ttl = $2; fr->fr_mttl = 0xff;) }
YY_NUMBER { DOREM(fr->fr_ttl = $1; fr->fr_mttl = 0xff;) }
{ DOREM(fr->fr_ttl = $3; fr->fr_mttl = 0xff;) }
(fr1->fr_ttl == fr->fr_ttl)) {
PRINTF("ttl %d ", fp->fr_ttl);