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Hi, I'm trying to get two PPP devices to work together to setup a PPP connection. I have control over one of them - meaning I can set whatever options I please - but I can't control the other device, it's options are hard-wired. I think I've almost got them working because they pass the LCP request - ack stage and enter the IPCP stage. In the IPCP stage, my IPCP-Req is Ack'd, so I'm halfway there. Their IPCP-Req is received by me with IP-addr=0.0.0.0 and I respond with IPCP-Nak IP-addr=192.168.20.50. All this seems correct to me, but then the device doesn't accept my Nak and either re-sends its original IPCP-Req or goes back to the LCP-Req stage. Does any have ideas on why this could happen or something I can try? My log is below, Thanks for reading :) # pppd file options.pppBCM nodetach pppd options in effect: debug # (from options.pppBCM) nodetach # (from command line) dump # (from options.pppBCM) noauth # (from options.pppBCM) /dev/ttyUSB1 # (from options.pppBCM) 9600 # (from options.pppBCM) lock # (from options.pppBCM) nocrtscts # (from options.pppBCM) asyncmap ffffffff # (from options.pppBCM) 192.168.30.1:192.168.30.50 # (from options.pppBCM) nobsdcomp # (from options.pppBCM) nodeflate # (from options.pppBCM) using channel 21 Using interface ppp0 Connect: ppp0 <--> /dev/ttyUSB1 sent [LCP ConfReq id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] rcvd [LCP ConfAck id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] sent [LCP ConfReq id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] rcvd [LCP ConfAck id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] sent [LCP ConfReq id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] rcvd [LCP ConfAck id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] sent [LCP ConfReq id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] rcvd [LCP ConfAck id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] sent [LCP ConfReq id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] rcvd [LCP ConfAck id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] sent [LCP ConfReq id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] rcvd [LCP ConfAck id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] sent [LCP ConfReq id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] rcvd [LCP ConfAck id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] sent [LCP ConfReq id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] rcvd [LCP ConfAck id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] sent [LCP ConfReq id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] rcvd [LCP ConfAck id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] sent [LCP ConfReq id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] rcvd [LCP ConfAck id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] sent [LCP ConfReq id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] rcvd [LCP ConfAck id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] sent [LCP ConfReq id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] rcvd [LCP ConfAck id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] sent [LCP ConfReq id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] rcvd [LCP ConfAck id=0x1 <magic 0xec2490cf> <pcomp> <accomp>] rcvd [LCP ConfReq id=0x25 <asyncmap 0x0> <magic 0xa5a44a5a>] sent [LCP ConfAck id=0x25 <asyncmap 0x0> <magic 0xa5a44a5a>] sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 192.168.30.1>] sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 192.168.30.1>] rcvd [IPCP ConfAck id=0x1 <compress VJ 0f 01> <addr 192.168.30.1>] sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 192.168.30.1>] rcvd [IPCP ConfAck id=0x1 <compress VJ 0f 01> <addr 192.168.30.1>] rcvd [IPCP ConfReq id=0x27 <addr 0.0.0.0>] sent [IPCP ConfNak id=0x27 <addr 192.168.30.50>] sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 192.168.30.1>] rcvd [IPCP ConfAck id=0x1 <compress VJ 0f 01> <addr 192.168.30.1>] rcvd [IPCP ConfReq id=0x28 <addr 0.0.0.0>] sent [IPCP ConfNak id=0x28 <addr 192.168.30.50>] sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 192.168.30.1>] rcvd [IPCP ConfAck id=0x1 <compress VJ 0f 01> <addr 192.168.30.1>] sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 192.168.30.1>] rcvd [IPCP ConfAck id=0x1 <compress VJ 0f 01> <addr 192.168.30.1>] rcvd [IPCP ConfReq id=0x2a <addr 0.0.0.0>] sent [IPCP ConfNak id=0x2a <addr 192.168.30.50>] sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 192.168.30.1>] rcvd [IPCP ConfAck id=0x1 <compress VJ 0f 01> <addr 192.168.30.1>] rcvd [LCP ConfReq id=0x2c <asyncmap 0x0> <magic 0xa5a44a5a>] sent [LCP ConfReq id=0x2 <magic 0xae75be4b> <pcomp> <accomp>] sent [LCP ConfAck id=0x2c <asyncmap 0x0> <magic 0xa5a44a5a>] rcvd [LCP ConfAck id=0x2 <magic 0xae75be4b> <pcomp> <accomp>] sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 192.168.30.1>] sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 192.168.30.1>] rcvd [IPCP ConfAck id=0x2 <compress VJ 0f 01> <addr 192.168.30.1>] rcvd [IPCP ConfReq id=0x2d <addr 0.0.0.0>] sent [IPCP ConfNak id=0x2d <addr 192.168.30.50>] sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 192.168.30.1>] rcvd [IPCP ConfAck id=0x2 <compress VJ 0f 01> <addr 192.168.30.1>] sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 192.168.30.1>] rcvd [IPCP ConfAck id=0x2 <compress VJ 0f 01> <addr 192.168.30.1>] -- View this message in context: http://www.nabble.com/IPCP-Nak-doesn%27t-do-anything-tp14303969p14303969.html Sent from the linux-ppp mailing list archive at Nabble.com. - To unsubscribe from this list: send the line "unsubscribe linux-ppp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html