Проблемы с подключением к GPRS

У меня Gentoo Linux 2004.1, ядро 2.4.26-gentoo-r3. Вот лог подключения к GPRS:

pppd[12747]: pppd 2.4.1 started by root, uid 0
pppd[12747]: using channel 14
pppd[12747]: Using interface ppp0
pppd[12747]: Connect: ppp0 <--> /dev/ttyUSB0
pppd[12747]: sent [LCP ConfReq id=0x1 <asyncmap 0xa0000> <magic 0xe14b9d75>]
pppd[12747]: rcvd [LCP ConfAck id=0x1 <asyncmap 0xa0000> <magic 0xe14b9d75>]
pppd[12747]: rcvd [LCP ConfReq id=0x3 <asyncmap 0xa0000> <pcomp> <accomp> <magic 0xc30517ea> <auth chap MD5>]
pppd[12747]: sent [LCP ConfRej id=0x3 <pcomp> <accomp>]
pppd[12747]: rcvd [LCP ConfReq id=0x5 <asyncmap 0xa0000> <magic 0xc30517ea> <auth chap MD5>]
pppd[12747]: sent [LCP ConfAck id=0x5 <asyncmap 0xa0000> <magic 0xc30517ea> <auth chap MD5>]
pppd[12747]: cbcp_lowerup
pppd[12747]: want: 2
pppd[12747]: rcvd [CHAP Challenge id=0x1 <3bcfdc9b430d30e462e19ac4984d1b3be44fb349>, name = ""]
pppd[12747]: sent [CHAP Response id=0x1 <dd2114444e9b078e6404ccd20e4872de>, name = "cellular"]
pppd[12747]: rcvd [CHAP Success id=0x1 ""]
pppd[12747]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
pppd[12747]: rcvd [LCP TermReq id=0x5]
pppd[12747]: LCP terminated by peer
pppd[12747]: cbcp_lowerdown
pppd[12747]: sent [LCP TermAck id=0x5]
pppd[12747]: rcvd [LCP TermReq id=0x5]
pppd[12747]: sent [LCP TermAck id=0x5]
pppd[12747]: Connection terminated.
pppd[12747]: Exit.
dc9b430d30e462e19ac4984d1b3be44fb349>, name = ""]
Sep 11 20:19:31 investigator pppd[12747]: sent [CHAP Response id=0x1 <dd2114444e9b078e6404ccd20e4872de>, name = "cellular"]
Sep 11 20:19:31 investigator pppd[12747]: rcvd [CHAP Success id=0x1 ""]
Sep 11 20:19:31 investigator pppd[12747]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
Sep 11 20:19:32 investigator pppd[12747]: rcvd [LCP TermReq id=0x5]
Sep 11 20:19:32 investigator pppd[12747]: LCP terminated by peer
Sep 11 20:19:32 investigator pppd[12747]: cbcp_lowerdown
Sep 11 20:19:32 investigator pppd[12747]: sent [LCP TermAck id=0x5]
Sep 11 20:19:35 investigator pppd[12747]: rcvd [LCP TermReq id=0x5]
Sep 11 20:19:35 investigator pppd[12747]: sent [LCP TermAck id=0x5]
Sep 11 20:19:35 investigator pppd[12747]: Connection terminated.
Sep 11 20:19:35 investigator pppd[12747]: Exit.

Как только pppd пытается получить адреса IP и DNS от провайдера, провайдер сразу же просит прекратить связь. Многочисленные повторные попытки дают тот же результат.
Их RedHat 7.3, ядро 2.4.18-3 подключается без проблем.