*
* There are 5 numbers which can change (they are always inserted
* in the following order): TCP urgent pointer, window,
- * acknowlegement, sequence number and IP ID. (The urgent pointer
+ * acknowledgement, sequence number and IP ID. (The urgent pointer
* is different from the others in that its value is sent, not the
* change in value.) Since typical use of SLIP links is biased
* toward small packets (see comments on MTU/MSS below), changes