rfc1323 and rfc1644 negotiation can make TCP communication to other
FreeBSD machines on the other side of a SLIP link impossible. This
is not a FreeBSD bug, but a bug in many terminal servers.
During install, I would highly recommend that these two commands be
run before any type of network installation:
sysctl -w net.inet.tcp.rfc1323=0
sysctl -w net.inet.tcp.rfc1644=0
It would not look good to not be able to ftp the distribution from
one of our own machines. There should also be a big warning about
this in the install notes and possibly even during installation.
Make the install program disable these features during network
If you want to see it in action, just let me know, and I'll turn
rfc1323 and rfc1644 negotiation back on for narnia.hip.berkeley.edu.
As mentioned in the PR, this isn't a bug in FreeBSD and the decision on
this is that TCP options negotiation should remain enabled.