What's the groups thoughts about this LCP negotiation. The local wants MRU
1400 and the remote is insisting on 1500. Oddly enough, when the remote
finally sends CfgReject instead of CfgNak, the local apparently tosses it's
config and settles for default 1500.

12:29:58.925 === LCP ENTERING ESTABLISH PHASE
12:29:58.926 ==> LCP/REQSENT CfgReq/0x01 id 0xD9 len 14 F945636A>
12:29:58.937 <== LCP/REQSENT CfgReq/0x01 id 0x01 len 15 MD-5>
12:29:58.938 ==> LCP/REQSENT CfgAck/0x02 id 0x01 len 15 MD-5>
12:29:58.947 <== LCP/ACKSENT CfgNak/0x03 id 0xD9 len 8
12:29:58.948 ==> LCP/ACKSENT CfgReq/0x01 id 0xDA len 14 F945636A>
12:29:59.026 <== LCP/ACKSENT CfgNak/0x03 id 0xDA len 8
12:29:59.026 ==> LCP/ACKSENT CfgReq/0x01 id 0xDB len 14 F945636A>
12:29:59.070 <== LCP/ACKSENT CfgNak/0x03 id 0xDB len 8
12:29:59.075 ==> LCP/ACKSENT CfgReq/0x01 id 0xDC len 14 F945636A>
12:29:59.079 <== LCP/ACKSENT CfgNak/0x03 id 0xDC len 8
12:29:59.080 ==> LCP/ACKSENT CfgReq/0x01 id 0xDD len 14 F945636A>
12:29:59.100 <== LCP/ACKSENT CfgNak/0x03 id 0xDD len 8
12:29:59.111 ==> LCP/ACKSENT CfgReq/0x01 id 0xDE len 14 F945636A>
12:29:59.138 <== LCP/ACKSENT CfgReject/0x04 id 0xDE len 8
12:29:59.139 ==> LCP/ACKSENT CfgReq/0x01 id 0xDF len 10
12:29:59.143 <== LCP/ACKSENT CfgAck/0x02 id 0xDF len 10
....