AS198827 ELEKTROGORENJSKA-SI - Elektro Gorenjska, podjetje za distribucijo elektricne energije, d.d.

AS overview

Test target: 2001:67c:28f4:1::3 · via IPv6 Hitlist (responsive) · address space: PI · prefixes announced: 1

prefix(es): 2001:67c:28f4::/48

Targets & per-vantage-point probe results (2 target(s) across 7 vantage point(s))

Source codes (hover any badge for full description): CUR=curated · NS/SOA/MX=DNS records · SPF=SPF TXT · DRV=holder-derived (www, ns1, mail, gw, …) · ATL=RIPE Atlas · PDB=PeeringDB · WHOIS=RIPE whois · RDAP=RIPE RDAP · HIT=IPv6 Hitlist · RTR=in-prefix path hop (router) · PRB=static prefix probe · SYN=synthetic prefix::1 fallback

Target IP / hostname	Source	SRB host (SOX, Belgrade)					DE host (Berlin)					DE host (Düsseldorf)					NL host (go6lab)					ITA host (Karsolink)					SLO host (6connect)					SLO host (T-2)
Target IP / hostname	Source	ping	1500B	:80	:443	reached	ping	1500B	:80	:443	reached	ping	1500B	:80	:443	reached	ping	1500B	:80	:443	reached	ping	1500B	:80	:443	reached	ping	1500B	:80	:443	reached	ping	1500B	:80	:443	reached
`2001:67c:28f4:1::2`	rtr	✗	✗	?	?	-	✗	✗	?	?	-	✗	✗	?	?	-	✗	✗	?	?	-	✗	✗	?	?	-	✓	✓	refused	refused	✓	✓	✓	refused	refused	✓
`2001:67c:28f4:1::3`	hit	✓	✓	refused	refused	✓	✓	✓	refused	refused	-	✓	✓	refused	refused	✓	✓	✓	?	?	✓	✓	✓	refused	refused	✓	✓	✓	refused	refused	✓	✓	✓	refused	refused	-

RPKI & ASPA

0 of 1 prefix(es) covered by a valid ROA, 1 not-found.

Prefix	RPKI state	Reason	Covering VRP(s)
`2001:67c:28f4::/48`	- not-found	no covering VRP

Random-IP probe (yarrp) into the AS' prefixes

At least one router inside AS198827's announced prefix replied during the random-target probe. Hop(s): 2001:67c:28f4:1::2. These are candidate targets for direct testing.

ICMPv6 Type 2 (Packet Too Big) acceptance - active test

Type 2 honored. Forged ICMPv6 PTB (MTU=1280) was accepted by the destination's stack: the next 1500-byte Echo Reply arrived split into 2 fragments via the IPv6 Fragment Header.
method: ICMPv6 Echo + forged PTB, tested 2026-09-23T10:33:04Z

Multi-vantage path map

Every hop of all vantages’ traceroutes toward the target, drawn left→right, grouped into per-AS bubbles (a hop seen from several vantages is one shared bubble, so converging paths merge). It answers two questions per vantage — shown on each source bubble as echo ✓/⚠/✗ · trace ✓/✗: did the destination reply to ICMPv6 Echo (✓ honored, ⚠ replied but PTB not honored, ✗ no reply), and did the traceroute reach it. A line to the target is drawn only when that vantage got an echo reply — solid if the PTB was honored, dashed if not (reachable but a broken-PMTUD / RFC 4890 violation). The path depth still shows how far the traceroute itself got, and runs of unanswered (* *) hops collapse into one dashed “silent” bubble. Open full size ↗

● SRB host (SOX, Belgrade)
● DE host (Berlin)
● DE host (Düsseldorf)
● NL host (go6lab)
● ITA host (Karsolink)
● SLO host (6connect)
● SLO host (T-2)
── solid line = echo reply, PTB honored (clean reach)
— — dashed line = echo reply but PTB not honored (RFC 4890 violation)
no line = no echo reply (never reached)
◉ target: green = clean, amber = reachable-but-violation / unreachable
⚠ suspected drop AS
⋯ silent (unanswered) hops
● IXP hop

From SRB host (SOX, Belgrade) openRFC 4890 ✓

filter likely at: (none) · min PMTU on path: 1500

4/4

Echo small (56B) 33.7ms

4/4

Echo 1500B (DF) 25.0ms

yes

Type 1 dest-unreach

443,80

TCP responds on

Path (traceroute + mtr + PTR)

#	IP / PTR	RTT	mtr loss	AS	AS holder
1	2a09:ab81::1	0.2ms	0%*	AS60733	PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS
2	sox-pn.sox.rs 2001:7f8:1e:8::3a	0.3ms	0%	AS13004	SOX - Serbian Open Exchange DOO, RS
3	2001:7f8:1e:8::3d	0.4ms	0%	AS13004	SOX - Serbian Open Exchange DOO, RS
4	2a02:2d8:0:a00e:232a	12.6ms	10%	-
5	*	-	40%	-
6	2a00:fc0:4330:1::a	21.9ms	0%	AS3212	TELEMACH - Telemach Slovenija d.o.o., SI
7	2a00:fc0:4330:1::b	20.1ms	0%	AS3212	TELEMACH - Telemach Slovenija d.o.o., SI
8	2001:67c:28f4:1::3	24.6ms	0%	AS198827	ELEKTROGORENJSKA-SI - Elektro Gorenjska, podjetje za distribucijo elektricne energije, d.d., SI

Rate-limited ICMPv6: hop 4, hop 5 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.009ms pmtu 1500
 1:  _gateway                                              0.738ms 
 1:  _gateway                                              0.543ms 
 2:  sox-pn.sox.rs                                         1.081ms 
 3:  2001:7f8:1e:8::3d                                     0.534ms asymm  2 
 4:  ae8-930.RT.IRX.VIE.AT.retn.net                       12.864ms asymm  3 
 5:  2001:7f8:30:0:2:1:0:3212                             14.587ms asymm  3 
 6:  2a00:fc0:4330:1::a                                   22.114ms asymm  5 
 7:  2a00:fc0:4330:1::b                                   20.458ms asymm  6 
 8:  2001:67c:28f4:1::3                                   26.297ms reached
     Resume: pmtu 1500 hops 8 back 10

From DE host (Berlin) openRFC 4890 ✓

filter likely at: (none) · min PMTU on path: 1500

4/4

Echo small (56B) 38.7ms

4/4

Echo 1500B (DF) 35.0ms

yes

Type 1 dest-unreach

443,80

TCP responds on

Path (traceroute + mtr + PTR)

#	IP / PTR	RTT	mtr loss	AS	AS holder
1	*	-	0%*	-
2	ae0-2453.cr10.ber01.lwlcom.net 2a06:d1c0::dead:beef:1c02	0.6ms	0%*	AS59645	WYBT-NET - Tobias Fiebig, DE
3	ae3-90.cr10.ham01.lwlcom.net 2a00:c380:b200:230::192	4.8ms	0%	AS50629	LWLCOM - LWLcom GmbH, DE
4	ae0-50.cr11.ham01.lwlcom.net 2a00:c380:b200:230::45	4.8ms	0%	AS50629	LWLCOM - LWLcom GmbH, DE
5	2a00:c380:f000::4b	5.4ms	0%	AS50629	LWLCOM - LWLcom GmbH, DE
6	ae4-2087.dus10.core-backbone.com 2a01:4a0:0:2087::33	11.3ms	0%	AS201011	CORE-BACKBONE - Core-Backbone GmbH, DE
7	ae21-2071.fra10.core-backbone.com 2a01:4a0:0:2071::4	10.6ms	0%	AS201011	CORE-BACKBONE - Core-Backbone GmbH, DE
8	ae2-2021.fra20.core-backbone.com 2a01:4a0:0:2021::4	10.6ms	0%	AS201011	CORE-BACKBONE - Core-Backbone GmbH, DE
9	ae6-2003.nbg20.core-backbone.com 2a01:4a0:0:2003::2	12.1ms	0%	AS201011	CORE-BACKBONE - Core-Backbone GmbH, DE
10	ae2-2032.muc20.core-backbone.com 2a01:4a0:0:2032::7	14.6ms	0%	AS201011	CORE-BACKBONE - Core-Backbone GmbH, DE
11	ae1-2028.vie10.core-backbone.com 2a01:4a0:0:2028::10	20.2ms	0%	AS201011	CORE-BACKBONE - Core-Backbone GmbH, DE
12	2a01:4a0:1338:115::2	31.8ms	0%	AS201011	CORE-BACKBONE - Core-Backbone GmbH, DE
13	2a01-260-1-1--6.core6.t-2.net 2a01:260:1:1::6	32.4ms	0%*	AS34779	T-2-AS - T-2, d.o.o., SI
14	2a01-260-1-1--5.core6.t-2.net 2a01:260:1:1::5	32.7ms	0%*	AS34779	T-2-AS - T-2, d.o.o., SI
15	2a01-260-1025--16.link6.t-2.net 2a01:260:1025::16	36.1ms	0%	AS34779	T-2-AS - T-2, d.o.o., SI

tracepath -6

 1?: [LOCALHOST]                        0.028ms pmtu 1500
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.559ms 
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.474ms 
 2:  ae0-2453.cr10.ber01.lwlcom.net                        1.080ms 
 3:  ae3-90.cr10.ham01.lwlcom.net                          5.172ms 
 4:  ae0-50.cr11.ham01.lwlcom.net                          5.364ms 
 5:  2a00:c380:f000::4b                                    5.732ms asymm  4 
 6:  ae4-2087.dus10.core-backbone.com                     11.780ms asymm  5 
 7:  ae21-2071.fra10.core-backbone.com                    10.808ms asymm  5 
 8:  ae2-2021.fra20.core-backbone.com                     11.053ms asymm  4 
 9:  ae6-2003.nbg20.core-backbone.com                     12.489ms asymm  6 
10:  ae2-2032.muc20.core-backbone.com                     15.053ms asymm  7 
11:  ae1-2028.vie10.core-backbone.com                     21.051ms asymm  8 
12:  2a01:4a0:1338:115::2                                 32.196ms 
13:  2a01-260-1-1--6.core6.t-2.net                        32.923ms asymm 12 
14:  2a01-260-1-1--5.core6.t-2.net                        32.861ms asymm 13 
15:  2a01-260-1025--16.link6.t-2.net                      44.932ms reached
     Resume: pmtu 1500 hops 15 back 14

From DE host (Düsseldorf) openRFC 4890 ✓

filter likely at: (none) · min PMTU on path: 1500

4/4

Echo small (56B) 29.8ms

4/4

Echo 1500B (DF) 26.5ms

yes

Type 1 dest-unreach

443,80

TCP responds on

Path (traceroute + mtr + PTR)

#	IP / PTR	RTT	mtr loss	AS	AS holder
1	*	-	0%*	-
2	eth1-0-12-h5594.edge5-dus1.bb.wiit.network 2001:4ba0:92f4:3::1	2.2ms	0%	AS24961	MYLOC-AS - WIIT AG, DE
3	lag13.agr3-dus3.bb.wiit.network 2001:4ba0:ffe9:7d::1	2.4ms	0%	AS24961	MYLOC-AS - WIIT AG, DE
4	lag30.core3-dus1.bb.wiit.network 2001:4ba0:ffe9:109::2	0.2ms	0%	AS24961	MYLOC-AS - WIIT AG, DE
5	lag8.core1-dus-ix.bb.wiit.network 2001:4ba0:ffe9:8::2	0.4ms	0%	AS24961	MYLOC-AS - WIIT AG, DE
6	2001:7f8::c8c:0:1	16.2ms	0%	-	NA
7	*	-	40%	-
8	2a00:fc0:4330:1::b	20.5ms	0%	AS3212	TELEMACH - Telemach Slovenija d.o.o., SI
9	2001:67c:28f4:1::3	28.6ms	10%	AS198827	ELEKTROGORENJSKA-SI - Elektro Gorenjska, podjetje za distribucijo elektricne energije, d.d., SI

Rate-limited ICMPv6: hop 7, hop 9 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.014ms pmtu 1500
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  3.052ms 
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  0.308ms 
 2:  eth1-0-12-h5594.edge5-dus1.bb.wiit.network            1.065ms 
 3:  no reply
 4:  lag30.core3-dus1.bb.wiit.network                      0.302ms 
 5:  lag8.core1-dus-ix.bb.wiit.network                     0.568ms 
 6:  2001:7f8::c8c:0:1                                    15.852ms 
 7:  2a00:fc0:4330:1::a                                   23.810ms asymm  8 
 8:  2a00:fc0:4330:1::b                                   22.244ms asymm  9 
 9:  2001:67c:28f4:1::3                                   26.378ms reached
     Resume: pmtu 1500 hops 9 back 13

From NL host (go6lab) openRFC 4890 ✓

filter likely at: (none) · min PMTU on path: 1500

4/4

Echo small (56B) 41.3ms

4/4

Echo 1500B (DF) 41.2ms

yes

Type 1 dest-unreach

TCP responds on

Path (traceroute + mtr + PTR)

#	IP / PTR	RTT	mtr loss	AS	AS holder
1	2a00:8642:42::2	1.4ms	0%	AS203993	GNA-DC1-AS - S.J.M. Steffann, NL
2	*	-	0%*	-
3	2a00:1ca8:1::194	3.2ms	0%	AS50673	Serverius-as - Serverius Holding B.V., NL
4	2a03:3f40::10:33	5.3ms	0%	AS50673	Serverius-as - Serverius Holding B.V., NL
5	2001:7f8:13::a500:3212:1	25.1ms	0%	-	NA
6	2a00:fc0:4330:1::a	29.2ms	80%	AS3212	TELEMACH - Telemach Slovenija d.o.o., SI
7	2a00:fc0:4330:1::b	33.0ms	0%	AS3212	TELEMACH - Telemach Slovenija d.o.o., SI
8	2001:67c:28f4:1::3	38.7ms	0%	AS198827	ELEKTROGORENJSKA-SI - Elektro Gorenjska, podjetje za distribucijo elektricne energije, d.d., SI

Rate-limited ICMPv6: hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.038ms pmtu 1500
 1:  ???                                                   5.504ms 
 1:  ???                                                   5.257ms 
 2:  no reply
 3:  2a00:1ca8:1::194                                      3.487ms 
 4:  2a03:3f40::10:33                                     10.324ms 
 5:  2001:7f8:13::a500:3212:1                             28.077ms asymm  8 
 6:  2a00:fc0:4330:1::a                                   31.358ms asymm  9 
 7:  2a00:fc0:4330:1::b                                   30.373ms asymm 10 
 8:  2001:67c:28f4:1::3                                   35.361ms reached
     Resume: pmtu 1500 hops 8 back 9

From ITA host (Karsolink) openRFC 4890 ✓

filter likely at: (none) · min PMTU on path: 1500

4/4

Echo small (56B) 46.9ms

4/4

Echo 1500B (DF) 44.8ms

yes

Type 1 dest-unreach

443,80

TCP responds on

Path (traceroute + mtr + PTR)

#	IP / PTR	RTT	mtr loss	AS	AS holder
1	*	-	-	-
2	*	-	-	-
3	*	-	90%	-
4	*	-	-	-
5	100ge0-0-0-20.core1.vie1.he.net 2001:470:0:414::1	22.2ms	10%	AS6939	HURRICANE - Hurricane Electric LLC, US
6	*	-	0%	-
7	2a00:fc0:4330:1::a	28.2ms	50%	AS3212	TELEMACH - Telemach Slovenija d.o.o., SI
8	2a00:fc0:4330:1::b	27.6ms	0%	AS3212	TELEMACH - Telemach Slovenija d.o.o., SI
9	2001:67c:28f4:1::3	49.1ms	0%	AS198827	ELEKTROGORENJSKA-SI - Elektro Gorenjska, podjetje za distribucijo elektricne energije, d.d., SI

Rate-limited ICMPv6: hop 3, hop 5, hop 7 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.030ms pmtu 1500
 1:  no reply
 2:  no reply
 3:  2a12:d8c0:101f:103::1                                 8.660ms 
 4:  no reply
 5:  100ge0-0-0-20.core1.vie1.he.net                      23.895ms 
 6:  telemach-d-o-o.e0-66.core2.vie1.he.net               22.863ms asymm  7 
 7:  2a00:fc0:4330:1::a                                   28.840ms asymm  8 
 8:  2a00:fc0:4330:1::b                                   29.990ms asymm  9 
 9:  2001:67c:28f4:1::3                                   45.714ms reached
     Resume: pmtu 1500 hops 9 back 13

From SLO host (6connect) openRFC 4890 ✓

filter likely at: (none) · min PMTU on path: 1500

4/4

Echo small (56B) 9.1ms

4/4

Echo 1500B (DF) 7.6ms

yes

Type 1 dest-unreach

443,80

TCP responds on

Path (traceroute + mtr + PTR)

#	IP / PTR	RTT	mtr loss	AS	AS holder
1	fw1-lju.6connect.com 2607:fae0:a000::2	0.3ms	0%*	AS8038	6CONNECT - 6connect, Inc., US
2	*	-	-	-
3	*	-	80%	-
4	*	-	20%	-
5	2a00:fc0:3212:3::a	2.5ms	0%	AS3212	TELEMACH - Telemach Slovenija d.o.o., SI
6	2a00:fc0:3212:65::a	3.1ms	0%	AS3212	TELEMACH - Telemach Slovenija d.o.o., SI
7	2001:67c:28f4:1::3	9.2ms	0%	AS198827	ELEKTROGORENJSKA-SI - Elektro Gorenjska, podjetje za distribucijo elektricne energije, d.d., SI

Rate-limited ICMPv6: hop 3, hop 4 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.022ms pmtu 9000
 1:  fw1-lju.6connect.com                                  0.430ms 
 1:  fw1-lju.6connect.com                                  0.415ms 
 2:  no reply
 3:  2a03:a100:0:201:1::1                                  1.116ms 
 4:  2a03:a100:0:201:1::1                                  1.012ms pmtu 1500
 4:  2001:7f8:46::3212                                     4.160ms asymm  5 
 5:  2a00:fc0:3212:1::a                                    2.493ms asymm  6 
 6:  2a00:fc0:3212:65::a                                   3.192ms 
 7:  2001:67c:28f4:1::3                                    9.265ms reached
     Resume: pmtu 1500 hops 7 back 7

From SLO host (T-2) openRFC 4890 ✓

filter likely at: (none) · min PMTU on path: 1500

4/4

Echo small (56B) 5.8ms

4/4

Echo 1500B (DF) 14.0ms

yes

Type 1 dest-unreach

443,80

TCP responds on

Path (traceroute + mtr + PTR)

#	IP / PTR	RTT	mtr loss	AS	AS holder
1	*	-	-	-
2	2a01:260:1::225	4.3ms	0%*	AS34779	T-2-AS - T-2, d.o.o., SI
3	2a01-260-1-1--9c.core6.t-2.net 2a01:260:1:1::9c	3.9ms	0%*	AS34779	T-2-AS - T-2, d.o.o., SI
4	2a01-260-1-1--63.core6.t-2.net 2a01:260:1:1::63	5.2ms	0%*	AS34779	T-2-AS - T-2, d.o.o., SI
5	2a01-260-1-1--5.core6.t-2.net 2a01:260:1:1::5	5.4ms	0%*	AS34779	T-2-AS - T-2, d.o.o., SI
6	2a01-260-1025--16.link6.t-2.net 2a01:260:1025::16	19.6ms	0%	AS34779	T-2-AS - T-2, d.o.o., SI

tracepath -6

 1?: [LOCALHOST]                        0.018ms pmtu 1500
 1:  no reply
 2:  2a01:260:1::225                                       4.530ms 
 3:  2a01-260-1-1--9a.core6.t-2.net                        3.687ms 
 4:  2a01-260-1-1--63.core6.t-2.net                        3.176ms 
 5:  2a01-260-1-1--5.core6.t-2.net                         3.272ms 
 6:  2a01-260-1025--16.link6.t-2.net                      10.163ms reached
     Resume: pmtu 1500 hops 6 back 6