Date: Sun, 23 Jul 2000 06:35:03 +0100 (BST) From: Paul Branston <apbran@rannoch.demon.co.uk> To: freebsd-isdn@freebsd.org Subject: connection problem Message-ID: <Pine.LNX.4.21.0007230606340.907-100000@rannoch.demon.co.uk>
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I am having trouble with the ISDN connection to my ISP.
Although the connection appears to be established and isdnd reports
being in state 3 only LCP packets are seen in the dump apart
from incoming smtp connections which are then rejected by sendmail
because it fails to do a DNS lookup on the sending domain. I never
see a request going out on port 53 at all.
I have tried this with all sorts of ipfilter combinations and
ipstat does show packets being passed but tcpdump does not see
them, not even the 22 pings.
564 pass out quick on lo0 from any to any
0 block out quick on isp0 from any to 127.0.0.0/8
0 block out quick on isp0 from any to 192.168.0.0/16
0 block out quick on isp0 from any to 172.16.0.0/12
0 block out quick on isp0 from any to 10.0.0.0/8
2 pass out on isp0 proto tcp from any to any keep state
1736 pass out on isp0 proto udp from any to any keep state
22 pass out on isp0 proto icmp from any to any keep state
Is this a normal exchange taken from tcpdump -iisp0
21:02:24.692312 ID-106 LCP: Configure-Request, Magic-Number=248067122
016a 000a 0506 0ec9 3432
21:02:24.717650 ID-136 LCP: Configure-Request, Auth-Prot PAP,
Magic-Number=1391823577, Multilink-MRRU, Multilink-ED, Link-Discriminator
0188 001f 0304 c023 0506 52f5 8ad9 1104
05f4 1309 0144 454d 4f4e 3117 046f a3
21:02:24.717684 ID-136 LCP: Configure-Reject, Multilink-MRRU,
Multilink-ED, Link-Discriminator
0488 0015 1104 05f4 1309 0144 454d 4f4e
3117 046f a3
21:02:24.719774 ID-106 LCP: Configure-Ack, Magic-Number=248067122
026a 000a 0506 0ec9 3432
21:02:24.742030 ID-137 LCP: Configure-Request, Auth-Prot PAP,
Magic-Number=1391823577
0189 000e 0304 c023 0506 52f5 8ad9
21:02:24.742054 ID-137 LCP: Configure-Ack, Auth-Prot PAP,
Magic-Number=1391823577
0289 000e 0304 c023 0506 52f5 8ad9
21:02:24.742102 ID-107 PAP: Authenticate-Request, Peer-Id=rannoch,
Passwd=XXXXXXX
016b 0013 0772 616e 6e6f 6368 0663 3533
6177 67
21:02:24.906921 ID-107 PAP: Authenticate-Ack
026b 0005 00
21:02:24.906968 ID-108 IPCP: IP-Address=0.0.0.0
016c 000a 0306 0000 0000
21:02:25.002296 ID-007 IPCP: IP-Address=MY.IP.ADDR.ESS
0107 000a 0306 9e98 01de
21:02:25.002325 ID-007 IPCP: IP-Address=MY.IP.ADDR.ESS
0207 000a 0306 9e98 01de
21:02:25.004671 ID-009 c02b:
0109 000a 0106 52f5 8bf9
21:02:25.004683 ID-109 LCP: Protocol-Reject
086d 0010 c02b 0109 000a 0106 52f5 8bf9
21:02:25.006912 ID-108 IPCP: IP-Address=MY.IP.ADDR.ESS
036c 000a 0306 9e98 6e75
21:02:25.007002 ID-110 IPCP: IP-Address=MY.IP.ADDR.ESSB
016e 000a 0306 9e98 6e75
21:02:25.030171 ID-110 IPCP: IP-Address=MY.IP.ADDR.ESS
026e 000a 0306 9e98 6e75
21:02:28.603673 ID-001 LCP: Echo-Request, Magic-Number=1391823577
0901 000c 52f5 8ad9 0158 2960
21:02:28.603699 ID-001 LCP: Echo-Reply, Magic-Number=248067122
0a01 000c 0ec9 3432 0158 2960
21:02:38.679219 ID-002 LCP: Echo-Request, Magic-Number=1391823577
0902 000c 52f5 8ad9 0018 03a9
21:02:38.679249 ID-002 LCP: Echo-Reply, Magic-Number=248067122
0a02 000c 0ec9 3432 0018 03a9
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