Okay, something stupid is going on here. It's either me or linux.. :P
Can someone she the record straight here:


Simple config

[2.2.14]-[routed-fastethernet-network]-[termserver]-analog_modem-[2.2.15pre14]

I'm getting intolerable stalls, but the modem seems to work fine. A zmodem
transfer over plain serial gets 3.4 kb/s while I'm luckey to see 1.4kb/s
on the ppp.

During a FTP transfer I see:
 
23:53:41.876864 > 10.10.201.3.1951 > 10.10.6.236.34827: . 0:0(0) ack 50233
win 62608 (DF)
23:53:42.056709 < 10.10.6.236.34827 > 10.10.201.3.1951: P 50233:50961(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:42.266796 < 10.10.6.236.34827 > 10.10.201.3.1951: P 50961:51689(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:42.266847 > 10.10.201.3.1951 > 10.10.6.236.34827: . 0:0(0) ack 51689
win 62608 (DF)
23:53:42.476800 < 10.10.6.236.34827 > 10.10.201.3.1951: P 51689:52417(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:42.686895 < 10.10.6.236.34827 > 10.10.201.3.1951: P 52417:53145(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:42.686955 > 10.10.201.3.1951 > 10.10.6.236.34827: . 0:0(0) ack 53145
win 62608 (DF)
23:53:42.866898 < 10.10.6.236.34827 > 10.10.201.3.1951: P 53145:53873(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:43.076951 < 10.10.6.236.34827 > 10.10.201.3.1951: P 53873:54601(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:43.245952 > 10.10.201.3.1951 > 10.10.6.236.34827: . 0:0(0) ack 53873
win 63336 (DF)
23:53:43.286268 < 10.10.6.236.34827 > 10.10.201.3.1951: P 54601:55329(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:43.486308 < 10.10.6.236.34827 > 10.10.201.3.1951: P 55329:56057(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:43.696328 < 10.10.6.236.34827 > 10.10.201.3.1951: P 56057:56785(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:43.886237 < 10.10.6.236.34827 > 10.10.201.3.1951: P 56785:57513(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:44.096225 < 10.10.6.236.34827 > 10.10.201.3.1951: P 57513:58241(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:44.286220 < 10.10.6.236.34827 > 10.10.201.3.1951: P 58241:58969(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:44.956217 < 10.10.6.236.34827 > 10.10.201.3.1951: P 53873:54601(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:45.455813 > 10.10.201.3.1951 > 10.10.6.236.34827: . 0:0(0) ack 54601
win 63336 (DF)
23:53:52.115807 < 10.10.6.236.34827 > 10.10.201.3.1951: P 54601:55329(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:52.615368 > 10.10.201.3.1951 > 10.10.6.236.34827: . 0:0(0) ack 55329
win 63336 (DF)
23:53:52.965735 < 10.10.6.236.34827 > 10.10.201.3.1951: P 55329:56057(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:53.175669 < 10.10.6.236.34827 > 10.10.201.3.1951: P 56057:56785(728)
ack 0 win 32760 (DF) [tos 0x10] 
23:53:53.175717 > 10.10.201.3.1951 > 10.10.6.236.34827: . 0:0(0) ack 56785
win 62608 (DF)


Why the HELL isn't 10.10.201.3 ACKING packets it's recieved?

This is sniffing on 10.10.201.3's ppp0 interface so the ack isn't getting
lost or anything..


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