<div dir="ltr">Hi,<div><br></div><div>I'm running BIRD on Arista which allows access to Linux bash. I'm having issue with running multihop BFD session on it and I believe it's related to port being already binded.</div><div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">bash-4.3# netstat -tulpen | grep 4784<br clear="all"></blockquote><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> udp6       0      0 :::4784                 :::*                                0          4269       -</blockquote><div><br></div><div>Above is netstat output from bash on Arista (there is no BFD configured on switch). When I try to run <b>nc -ul4 4784</b> I'm getting</div></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Ncat: bind to <a href="http://0.0.0.0:4784">0.0.0.0:4784</a>: Address already in use. QUITTING.</blockquote><div><br></div><div>I couldn't find any configuration option for BFD to change port being used, but maybe there is one?</div><div>Perhaps anyone run into similar issue and have a workaround?</div><div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><span><br><div dir="ltr"><table style="border:none;border-collapse:collapse"><colgroup><col width="497"></colgroup><tbody><tr style="height:65pt"><td style="vertical-align:top;padding:5pt"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:10pt;font-family:Arial;color:rgb(102,102,102);background-color:transparent;font-weight:700;vertical-align:baseline;white-space:pre-wrap">Kuba Nowacki</span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><font color="#666666" face="Arial"><span style="font-size:10.6667px;white-space:pre-wrap">Senior NetOps</span></font></p><br><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:8pt;font-family:Arial;color:rgb(102,102,102);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">M: +(48) 605 508 118</span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:8pt;font-family:Arial;color:rgb(102,102,102);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">E: <a href="mailto:jnowacki@greywizard.com" target="_blank">jnowacki@greywizard.com</a></span></p></td></tr></tbody></table></div><br><div dir="ltr" style="margin-left:0pt"><table style="border:none;border-collapse:collapse"><colgroup><col width="74"><col width="121"><col width="129"><col width="108"><col width="138"></colgroup><tbody><tr style="height:60pt"><td style="border-bottom:0.5pt solid rgb(217,217,217);border-top:0.5pt solid rgb(217,217,217);vertical-align:top;padding:5pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:12pt;font-family:Arial;color:rgb(102,102,102);background-color:transparent;font-weight:700;vertical-align:baseline;white-space:pre-wrap"><img src="https://lh6.googleusercontent.com/5-5Uv_ufsOjm8PWhnFTiJusJ1jvoB56w4iR7HtjWklgLS0ZLiQj088iMCFKk8I23FxygNtcCJyQOEe9ySaExNFvAh-cLRC3BWKPMxhVfZMbXYfNWksBffXrb-DKtebPN9f9Yzeu7" width="55" height="69" style="border: none;"></span></p></td><td style="border-bottom:0.5pt solid rgb(217,217,217);border-top:0.5pt solid rgb(217,217,217);vertical-align:top;padding:5pt"><br><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial;color:rgb(210,215,220);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><img src="https://lh4.googleusercontent.com/FEIAXBCdcdoq8baGPSwXfgoEctIvuVuRV1pqhR503pFaiA9LKMcUEnSPMCHFOXiHUSPsCqC6II7PpISwv_O5MYN0U_gArA7XSNN_GdlbXmfkKan3kG-inS4igsaFAedCGNs5sxKG" width="107" height="36" style="border: none;"></span></p></td><td style="border-bottom:0.5pt solid rgb(217,217,217);border-top:0.5pt solid rgb(217,217,217);vertical-align:top;padding:5pt"><br><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt;text-align:right"><span style="font-size:8pt;font-family:Arial;color:rgb(210,215,220);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">GreyWizard Sp. z o.o.</span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt;text-align:right"><span style="font-size:8pt;font-family:Arial;color:rgb(210,215,220);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">ul. Palacza 113</span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt;text-align:right"><span style="font-size:8pt;font-family:Arial;color:rgb(210,215,220);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">60-273 Poznań, Poland</span></p></td><td style="border-bottom:0.5pt solid rgb(217,217,217);border-top:0.5pt solid rgb(2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