[comp.protocols.tcp-ip.ibmpc] Dial-Up Slip??

dalew@twiki.PDX.COM (Dale A. Weber) (11/18/90)

   Has anyone gotten dial-up slip to work from MS/PC-DOS?

   I will have the opportunity to experiment with this real soon with one of the
systems at work.

   What is being used to make this work, if it does?

   Is it even possible?
--
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jbvb@FTP.COM ("James B. Van Bokkelen") (12/04/90)

Dial-up SLIP is easy if you only have one dial-in line.  You give everyone
who might call the same remote IP address, and everything is fine.  The
problems arise with more than one line: SLIP alone doesn't have any way of
telling the far end "you came in on line 5; use 192.9.1.6 as your address
and 192.9.1.7 as your router for this session".  Some people use BOOTP for
this purpose.  Others use PPP, which has the address/default gateway
negotiation built in.

James B. VanBokkelen		26 Princess St., Wakefield, MA  01880
FTP Software Inc.		voice: (617) 246-0900  fax: (617) 246-0901

romkey@ASYLUM.SF.CA.US (John Romkey) (12/04/90)

   Date: Mon, 3 Dec 90 19:11:57 -0500
   From: "James B. Van Bokkelen" <jbvb@ftp.com>

   Others use PPP, which has the address/default gateway
   negotiation built in.

No default gateway negotiation. But picking a default gateway is easy
when your only link to the world is a point-to-point serial line to a
router. However, if it's not really a router but a box that's doing
proxy arp to make it look like you're really on the local ethernet
when you're not, PPP does not help you figure out what router to use.
		- john romkey			Epilogue Technology
USENET/UUCP/Internet:  romkey@asylum.sf.ca.us	FAX: 415 594-1141

BILLW@MATHOM.CISCO.COM (William Chops Westfield) (12/05/90)

    No default gateway negotiation. But picking a default gateway is easy
    when your only link to the world is a point-to-point serial line to a
    router. However, if it's not really a router but a box that's doing
    proxy arp to make it look like you're really on the local ethernet
    when you're not, PPP does not help you figure out what router to use.


Actually, in the latter case, it is the job of the "prpxy-arp box" to
figure out which router to use.  The SLIP (or PPP) host should still just
send the packets down its serial line.

BillW
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