DNS during PPP negotiation

Leonard (pmfan@infinetgroup.com)
Thu, 7 Aug 1997 14:29:26 -0700 (PDT)

Hi, I was looking at a successful PPP negotiation and noticed that
the PM3 rejected the secondary DNS. We have the dialup user set
both primary and secondary DNS at DUN, and the PM3 is set to use
DNS with nameserver x.x.x.1
I would guess that since the PM3 has no secondary DNS set, it rejected
the users' secondary DNS setting. Is there anyway to get it to
either set a secondary DNS at PM3; or not reject the secondary DNS
from the user?

As a side question, isn't it part of PPP negotiations for the PM3 to
tell the users' DUN what it's DNSes are (ie. don't set DNS in DUN at all)?
We tried that a while back, but about half our users would not be able to
obtain the DNS ips.

Here's the 0x51 dump:

Received IPCP_CONFIGURE_REQUEST on port S11 of 36 bytes containing:
01 01 00 28 02 06 00 2D 0F 01 03 06 00 00 00 00 81 06 01
02 03 01 82 06 00 00 00 00 83 06 01 02 03 02 84 06 00
00 00 00
Packet Info: Code: 01, ID: 01, 40 bytes.
IP-Compression-Protocol [0x02], length: (6 bytes), Van Jacobson
Compressed TCP/IP [0x002D0F01]
IP-Address [0x03], length: (6 bytes), [0.0.0.0]
Primary DNS Server Address [0x81], length: (6 bytes), [x.x.x.1]
Primary NBNS Server Address [0x82], length: (6 bytes), [0.0.0.0]
Secondary DNS Server Address [0x83], length: (6 bytes), [1.2.3.2]
Secondary NBNS Server Address [0x84], length: (6 bytes),[0.0.0.0]

Sending IPCP_CONFIGURE_REJECT to port S11 of 22 bytes containing:
04 01 00 16 82 06 00 00 00 00 83 06 01 02 03 02 84 06 00
00 00 00
Packet Info: Code: 04, ID: 01, 22 bytes.
Primary NBNS Server Address [0x82], length: (6 bytes), [0.0.0.0]
Secondary DNS Server Address [0x83], length: (6 bytes), [x.x.x.2]
Secondary NBNS Server Address [0x84], length: (6 bytes),[0.0.0.0]

Any ideas?
thanks in advance.
Leonard.